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# @electric-sql/pglite-socket
## 0.0.20
### Patch Changes
- 54a4873: allow extensions to be loaded via '-e/--extensions <list>' cmd line parameter'
- 45bff97: added pgcrypto extension
- Updated dependencies [45bff97]
- Updated dependencies [5ec474f]
- @electric-sql/pglite@0.3.15
## 0.0.19
### Patch Changes
- Updated dependencies [8785034]
- Updated dependencies [90cfee8]
- @electric-sql/pglite@0.3.14
## 0.0.18
### Patch Changes
- Updated dependencies [ad3d0d8]
- @electric-sql/pglite@0.3.13
## 0.0.17
### Patch Changes
- Updated dependencies [ce0e74e]
- @electric-sql/pglite@0.3.12
## 0.0.16
### Patch Changes
- Updated dependencies [9a104b9]
- @electric-sql/pglite@0.3.11
## 0.0.15
### Patch Changes
- Updated dependencies [ad765ed]
- @electric-sql/pglite@0.3.10
## 0.0.14
### Patch Changes
- e40ccad: Upgrade emsdk
- Updated dependencies [e40ccad]
- @electric-sql/pglite@0.3.9
## 0.0.13
### Patch Changes
- bd263aa: fix oom; other fixes
- Updated dependencies [f12a582]
- Updated dependencies [bd263aa]
- @electric-sql/pglite@0.3.8
## 0.0.12
### Patch Changes
- Updated dependencies [0936962]
- @electric-sql/pglite@0.3.7
## 0.0.11
### Patch Changes
- Updated dependencies [6898469]
- Updated dependencies [469be18]
- Updated dependencies [64e33c7]
- @electric-sql/pglite@0.3.6
## 0.0.10
### Patch Changes
- Updated dependencies [6653899]
- Updated dependencies [5f007fc]
- @electric-sql/pglite@0.3.5
## 0.0.9
### Patch Changes
- 38a55d0: fix cjs/esm misconfigurations
- Updated dependencies [1fcaa3e]
- Updated dependencies [38a55d0]
- Updated dependencies [aac7003]
- Updated dependencies [8ca254d]
- @electric-sql/pglite@0.3.4
## 0.0.8
### Patch Changes
- Updated dependencies [ea2c7c7]
- @electric-sql/pglite@0.3.3
## 0.0.7
### Patch Changes
- 5a47f4d: better handling of closing the socket
- 6f8dd08: with the `npx pglite-server` command, add the ability to pass a command to run after the server is ready, along with passing a new DATABASE_URL environment variable to the command. This allows for a command like `npx pglite-server -r "npm run dev:inner" --include-database-url` to run a dev server that uses the pglite server as the database.
## 0.0.6
### Patch Changes
- Updated dependencies [e2c654b]
- @electric-sql/pglite@0.3.2
## 0.0.5
### Patch Changes
- f975f77: Updated README
- d9b52d5: allows unix socket connections
## 0.0.4
### Patch Changes
- 027baed: missing shebang
## 0.0.3
### Patch Changes
- 1c2dc84: fix pglite-socket exports
## 0.0.2
### Patch Changes
- Updated dependencies [713364e]
- @electric-sql/pglite@0.3.1

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# pglite-socket
A socket implementation for PGlite enabling remote connections. This package is a simple wrapper around the `net` module to allow PGlite to be used as a PostgreSQL server.
There are two main components to this package:
- [`PGLiteSocketServer`](#pglitesocketserver) - A TCP server that allows PostgreSQL clients to connect to a PGlite database instance.
- [`PGLiteSocketHandler`](#pglitesockethandler) - A low-level handler for a single socket connection to PGlite. This class handles the raw protocol communication between a socket and PGlite, and can be used to create a custom server.
The package also includes a [CLI](#cli-usage) for quickly starting a PGlite socket server.
Note: As PGlite is a single-connection database, it is not possible to have multiple simultaneous connections open. This means that the socket server will only support a single client connection at a time. While a `PGLiteSocketServer` or `PGLiteSocketHandler` are attached to a PGlite instance they hold an exclusive lock preventing any other connections, or queries on the PGlite instance.
## Installation
```bash
npm install @electric-sql/pglite-socket
# or
yarn add @electric-sql/pglite-socket
# or
pnpm add @electric-sql/pglite-socket
```
## Usage
```typescript
import { PGlite } from '@electric-sql/pglite'
import { PGLiteSocketServer } from '@electric-sql/pglite-socket'
// Create a PGlite instance
const db = await PGlite.create()
// Create and start a socket server
const server = new PGLiteSocketServer({
db,
port: 5432,
host: '127.0.0.1',
})
await server.start()
console.log('Server started on 127.0.0.1:5432')
// Handle graceful shutdown
process.on('SIGINT', async () => {
await server.stop()
await db.close()
console.log('Server stopped and database closed')
process.exit(0)
})
```
## API
### PGLiteSocketServer
Creates a TCP server that allows PostgreSQL clients to connect to a PGlite database instance.
#### Options
- `db: PGlite` - The PGlite database instance
- `port?: number` - The port to listen on (default: 5432). Use port 0 to let the OS assign an available port
- `host?: string` - The host to bind to (default: 127.0.0.1)
- `path?: string` - Unix socket path to bind to (takes precedence over host:port)
- `inspect?: boolean` - Print the incoming and outgoing data to the console (default: false)
#### Methods
- `start(): Promise<void>` - Start the socket server
- `stop(): Promise<void>` - Stop the socket server
#### Events
- `listening` - Emitted when the server starts listening
- `connection` - Emitted when a client connects
- `error` - Emitted when an error occurs
- `close` - Emitted when the server is closed
### PGLiteSocketHandler
Low-level handler for a single socket connection to PGlite. This class handles the raw protocol communication between a socket and PGlite.
#### Options
- `db: PGlite` - The PGlite database instance
- `closeOnDetach?: boolean` - Whether to close the socket when detached (default: false)
- `inspect?: boolean` - Print the incoming and outgoing data to the console in hex and ascii (default: false)
#### Methods
- `attach(socket: Socket): Promise<PGLiteSocketHandler>` - Attach a socket to this handler
- `detach(close?: boolean): PGLiteSocketHandler` - Detach the current socket from this handler
- `isAttached: boolean` - Check if a socket is currently attached
#### Events
- `data` - Emitted when data is processed through the handler
- `error` - Emitted when an error occurs
- `close` - Emitted when the socket is closed
#### Example
```typescript
import { PGlite } from '@electric-sql/pglite'
import { PGLiteSocketHandler } from '@electric-sql/pglite-socket'
import { createServer, Socket } from 'net'
// Create a PGlite instance
const db = await PGlite.create()
// Create a handler
const handler = new PGLiteSocketHandler({
db,
closeOnDetach: true,
inspect: false,
})
// Create a server that uses the handler
const server = createServer(async (socket: Socket) => {
try {
await handler.attach(socket)
console.log('Client connected')
} catch (err) {
console.error('Error attaching socket', err)
socket.end()
}
})
server.listen(5432, '127.0.0.1')
```
## Examples
See the [examples directory](./examples) for more usage examples.
## CLI Usage
This package provides a command-line interface for quickly starting a PGlite socket server.
```bash
# Install globally
npm install -g @electric-sql/pglite-socket
# Start a server with default settings (in-memory database, port 5432)
pglite-server
# Start a server with custom options
pglite-server --db=/path/to/database --port=5433 --host=0.0.0.0 --debug=1
# Using short options
pglite-server -d /path/to/database -p 5433 -h 0.0.0.0 -v 1
# Show help
pglite-server --help
```
### CLI Options
- `-d, --db=PATH` - Database path (default: memory://)
- `-p, --port=PORT` - Port to listen on (default: 5432). Use 0 to let the OS assign an available port
- `-h, --host=HOST` - Host to bind to (default: 127.0.0.1)
- `-u, --path=UNIX` - Unix socket to bind to (takes precedence over host:port)
- `-v, --debug=LEVEL` - Debug level 0-5 (default: 0)
- `-e, --extensions=LIST` - Comma-separated list of extensions to load (e.g., vector,pgcrypto)
- `-r, --run=COMMAND` - Command to run after server starts
- `--include-database-url` - Include DATABASE_URL in subprocess environment
- `--shutdown-timeout=MS` - Timeout for graceful subprocess shutdown in ms (default: 5000)
### Development Server Integration
The `--run` option is particularly useful for development workflows where you want to use PGlite as a drop-in replacement for PostgreSQL. This allows you to wrap your development server and automatically provide it with a DATABASE_URL pointing to your PGlite instance.
```bash
# Start your Next.js dev server with PGlite
pglite-server --run "npm run dev" --include-database-url
# Start a Node.js app with PGlite
pglite-server --db=./dev-db --run "node server.js" --include-database-url
# Start multiple services (using a process manager like concurrently)
pglite-server --run "npx concurrently 'npm run dev' 'npm run worker'" --include-database-url
```
When using `--run` with `--include-database-url`, the subprocess will receive a `DATABASE_URL` environment variable with the correct connection string for your PGlite server. This enables seamless integration with applications that expect a PostgreSQL connection string.
### Using in npm scripts
You can add the CLI to your package.json scripts for convenient execution:
```json
{
"scripts": {
"db:start": "pglite-server --db=./data/mydb --port=5433",
"db:dev": "pglite-server --db=memory:// --debug=1",
"dev": "pglite-server --db=./dev-db --run 'npm run start:dev' --include-database-url",
"dev:clean": "pglite-server --run 'npm run start:dev' --include-database-url"
}
}
```
Then run with:
```bash
npm run dev # Start with persistent database
npm run dev:clean # Start with in-memory database
```
### Unix Socket Support
For better performance in local development, you can use Unix sockets instead of TCP:
```bash
# Start server on a Unix socket
pglite-server --path=/tmp/pglite.sock --run "npm run dev" --include-database-url
# The DATABASE_URL will be: postgresql://postgres:postgres@/postgres?host=/tmp
```
### Connecting to the server
Once the server is running, you can connect to it using any PostgreSQL client:
#### Using psql
```bash
PGSSLMODE=disable psql -h localhost -p 5432 -d template1
```
#### Using Node.js clients
```javascript
// Using node-postgres
import pg from 'pg'
const client = new pg.Client({
host: 'localhost',
port: 5432,
database: 'template1'
})
await client.connect()
// Using postgres.js
import postgres from 'postgres'
const sql = postgres({
host: 'localhost',
port: 5432,
database: 'template1'
})
// Using environment variable (when using --include-database-url)
const sql = postgres(process.env.DATABASE_URL)
```
### Limitations and Tips
- Remember that PGlite only supports one connection at a time. If you're unable to connect, make sure no other client is currently connected.
- For development purposes, using an in-memory database (`--db=memory://`) is fastest but data won't persist after the server is stopped.
- For persistent storage, specify a file path for the database (e.g., `--db=./data/mydb`).
- When using debug mode (`--debug=1` or higher), additional protocol information will be displayed in the console.
- To allow connections from other machines, set the host to `0.0.0.0` with `--host=0.0.0.0`.
- SSL connections are **NOT** supported. For `psql`, set env var `PGSSLMODE=disable`.
- When using `--run`, the server will automatically shut down if the subprocess exits with a non-zero code.
- Use `--shutdown-timeout` to adjust how long to wait for graceful subprocess termination (default: 5 seconds).
## License
Apache 2.0

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import { PGlite } from '@electric-sql/pglite';
import { Socket } from 'net';
declare const CONNECTION_QUEUE_TIMEOUT = 60000;
/**
* Options for creating a PGLiteSocketHandler
*/
interface PGLiteSocketHandlerOptions {
/** The PGlite database instance */
db: PGlite;
/** Whether to close the socket when detached (default: false) */
closeOnDetach?: boolean;
/** Print the incoming and outgoing data to the console in hex and ascii */
inspect?: boolean;
/** Enable debug logging of method calls */
debug?: boolean;
}
/**
* Low-level handler for a single socket connection to PGLite
* Handles the raw protocol communication between a socket and PGLite
*/
declare class PGLiteSocketHandler extends EventTarget {
readonly db: PGlite;
private socket;
private active;
private closeOnDetach;
private resolveLock?;
private rejectLock?;
private inspect;
private debug;
private readonly id;
private static nextHandlerId;
/**
* Create a new PGLiteSocketHandler
* @param options Options for the handler
*/
constructor(options: PGLiteSocketHandlerOptions);
/**
* Get the unique ID of this handler
*/
get handlerId(): number;
/**
* Log a message if debug is enabled
* @private
*/
private log;
/**
* Attach a socket to this handler
* @param socket The socket to attach
* @returns this handler instance
* @throws Error if a socket is already attached
*/
attach(socket: Socket): Promise<PGLiteSocketHandler>;
/**
* Detach the current socket from this handler
* @param close Whether to close the socket when detaching (overrides constructor option)
* @returns this handler instance
*/
detach(close?: boolean): PGLiteSocketHandler;
/**
* Check if a socket is currently attached
*/
get isAttached(): boolean;
/**
* Handle incoming data from the socket
*/
private handleData;
/**
* Handle errors from the socket
*/
private handleError;
/**
* Handle socket close event
*/
private handleClose;
/**
* Print data in hex and ascii to the console
*/
private inspectData;
}
/**
* Options for creating a PGLiteSocketServer
*/
interface PGLiteSocketServerOptions {
/** The PGlite database instance */
db: PGlite;
/** The port to listen on (default: 5432) */
port?: number;
/** The host to bind to (default: 127.0.0.1) */
host?: string;
/** Unix socket path to bind to (default: undefined). If specified, takes precedence over host:port */
path?: string;
/** Print the incoming and outgoing data to the console in hex and ascii */
inspect?: boolean;
/** Connection queue timeout in milliseconds (default: 10000) */
connectionQueueTimeout?: number;
/** Enable debug logging of method calls */
debug?: boolean;
}
/**
* High-level server that manages socket connections to PGLite
* Creates and manages a TCP server and handles client connections
*/
declare class PGLiteSocketServer extends EventTarget {
readonly db: PGlite;
private server;
private port?;
private host?;
private path?;
private active;
private inspect;
private debug;
private connectionQueueTimeout;
private activeHandler;
private connectionQueue;
private handlerCount;
/**
* Create a new PGLiteSocketServer
* @param options Options for the server
*/
constructor(options: PGLiteSocketServerOptions);
/**
* Log a message if debug is enabled
* @private
*/
private log;
/**
* Start the socket server
* @returns Promise that resolves when the server is listening
*/
start(): Promise<void>;
getServerConn(): string;
/**
* Stop the socket server
* @returns Promise that resolves when the server is closed
*/
stop(): Promise<void>;
/**
* Get the active handler ID, or null if no active handler
*/
private get activeHandlerId();
/**
* Handle a new client connection
*/
private handleConnection;
/**
* Add a connection to the queue
*/
private enqueueConnection;
/**
* Process the next connection in the queue
*/
private processNextInQueue;
/**
* Attach a socket to a new handler
*/
private attachSocketToNewHandler;
}
export { CONNECTION_QUEUE_TIMEOUT, PGLiteSocketHandler, type PGLiteSocketHandlerOptions, PGLiteSocketServer, type PGLiteSocketServerOptions };

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import { PGlite } from '@electric-sql/pglite';
import { Socket } from 'net';
declare const CONNECTION_QUEUE_TIMEOUT = 60000;
/**
* Options for creating a PGLiteSocketHandler
*/
interface PGLiteSocketHandlerOptions {
/** The PGlite database instance */
db: PGlite;
/** Whether to close the socket when detached (default: false) */
closeOnDetach?: boolean;
/** Print the incoming and outgoing data to the console in hex and ascii */
inspect?: boolean;
/** Enable debug logging of method calls */
debug?: boolean;
}
/**
* Low-level handler for a single socket connection to PGLite
* Handles the raw protocol communication between a socket and PGLite
*/
declare class PGLiteSocketHandler extends EventTarget {
readonly db: PGlite;
private socket;
private active;
private closeOnDetach;
private resolveLock?;
private rejectLock?;
private inspect;
private debug;
private readonly id;
private static nextHandlerId;
/**
* Create a new PGLiteSocketHandler
* @param options Options for the handler
*/
constructor(options: PGLiteSocketHandlerOptions);
/**
* Get the unique ID of this handler
*/
get handlerId(): number;
/**
* Log a message if debug is enabled
* @private
*/
private log;
/**
* Attach a socket to this handler
* @param socket The socket to attach
* @returns this handler instance
* @throws Error if a socket is already attached
*/
attach(socket: Socket): Promise<PGLiteSocketHandler>;
/**
* Detach the current socket from this handler
* @param close Whether to close the socket when detaching (overrides constructor option)
* @returns this handler instance
*/
detach(close?: boolean): PGLiteSocketHandler;
/**
* Check if a socket is currently attached
*/
get isAttached(): boolean;
/**
* Handle incoming data from the socket
*/
private handleData;
/**
* Handle errors from the socket
*/
private handleError;
/**
* Handle socket close event
*/
private handleClose;
/**
* Print data in hex and ascii to the console
*/
private inspectData;
}
/**
* Options for creating a PGLiteSocketServer
*/
interface PGLiteSocketServerOptions {
/** The PGlite database instance */
db: PGlite;
/** The port to listen on (default: 5432) */
port?: number;
/** The host to bind to (default: 127.0.0.1) */
host?: string;
/** Unix socket path to bind to (default: undefined). If specified, takes precedence over host:port */
path?: string;
/** Print the incoming and outgoing data to the console in hex and ascii */
inspect?: boolean;
/** Connection queue timeout in milliseconds (default: 10000) */
connectionQueueTimeout?: number;
/** Enable debug logging of method calls */
debug?: boolean;
}
/**
* High-level server that manages socket connections to PGLite
* Creates and manages a TCP server and handles client connections
*/
declare class PGLiteSocketServer extends EventTarget {
readonly db: PGlite;
private server;
private port?;
private host?;
private path?;
private active;
private inspect;
private debug;
private connectionQueueTimeout;
private activeHandler;
private connectionQueue;
private handlerCount;
/**
* Create a new PGLiteSocketServer
* @param options Options for the server
*/
constructor(options: PGLiteSocketServerOptions);
/**
* Log a message if debug is enabled
* @private
*/
private log;
/**
* Start the socket server
* @returns Promise that resolves when the server is listening
*/
start(): Promise<void>;
getServerConn(): string;
/**
* Stop the socket server
* @returns Promise that resolves when the server is closed
*/
stop(): Promise<void>;
/**
* Get the active handler ID, or null if no active handler
*/
private get activeHandlerId();
/**
* Handle a new client connection
*/
private handleConnection;
/**
* Add a connection to the queue
*/
private enqueueConnection;
/**
* Process the next connection in the queue
*/
private processNextInQueue;
/**
* Attach a socket to a new handler
*/
private attachSocketToNewHandler;
}
export { CONNECTION_QUEUE_TIMEOUT, PGLiteSocketHandler, type PGLiteSocketHandlerOptions, PGLiteSocketServer, type PGLiteSocketServerOptions };

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import{a,b,c}from"./chunk-F6KLIXM7.js";export{a as CONNECTION_QUEUE_TIMEOUT,b as PGLiteSocketHandler,c as PGLiteSocketServer};
//# sourceMappingURL=index.js.map

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{"version":3,"sources":[],"sourcesContent":[],"mappings":"","names":[]}

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#!/usr/bin/env node

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#!/usr/bin/env node

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#!/usr/bin/env node
import{c as d}from"../chunk-F6KLIXM7.js";import{PGlite as h}from"@electric-sql/pglite";import{parseArgs as u}from"node:util";import{spawn as p}from"node:child_process";var r=u({options:{db:{type:"string",short:"d",default:"memory://",help:"Database path (relative or absolute). Use memory:// for in-memory database."},port:{type:"string",short:"p",default:"5432",help:"Port to listen on"},host:{type:"string",short:"h",default:"127.0.0.1",help:"Host to bind to"},path:{type:"string",short:"u",default:void 0,help:"unix socket to bind to. Takes precedence over host:port"},debug:{type:"string",short:"v",default:"0",help:"Debug level (0-5)"},extensions:{type:"string",short:"e",default:void 0,help:"Comma-separated list of extensions to load (e.g., vector,pgcrypto)"},run:{type:"string",short:"r",default:void 0,help:"Command to run after server starts"},"include-database-url":{type:"boolean",default:!1,help:"Include DATABASE_URL in the environment of the subprocess"},"shutdown-timeout":{type:"string",default:"5000",help:"Timeout in milliseconds for graceful subprocess shutdown (default: 5000)"},help:{type:"boolean",short:"?",default:!1,help:"Show help"}}}),g=`PGlite Socket Server
Usage: pglite-server [options]
Options:
-d, --db=PATH Database path (default: memory://)
-p, --port=PORT Port to listen on (default: 5432)
-h, --host=HOST Host to bind to (default: 127.0.0.1)
-u, --path=UNIX Unix socket to bind to (default: undefined). Takes precedence over host:port
-v, --debug=LEVEL Debug level 0-5 (default: 0)
-e, --extensions=LIST Comma-separated list of extensions to load
Formats: vector, pgcrypto (built-in/contrib)
@org/package/path:exportedName (npm package)
-r, --run=COMMAND Command to run after server starts
--include-database-url Include DATABASE_URL in subprocess environment
--shutdown-timeout=MS Timeout for graceful subprocess shutdown in ms (default: 5000)
`,l=class{constructor(e){this.db=null;this.server=null;this.subprocessManager=null;this.config=e}static parseConfig(){let e=r.values.extensions;return{dbPath:r.values.db,port:parseInt(r.values.port,10),host:r.values.host,path:r.values.path,debugLevel:parseInt(r.values.debug,10),extensionNames:e?e.split(",").map(o=>o.trim()):void 0,runCommand:r.values.run,includeDatabaseUrl:r.values["include-database-url"],shutdownTimeout:parseInt(r.values["shutdown-timeout"],10)}}createDatabaseUrl(){let{host:e,port:o,path:t}=this.config;if(t){let s=t.endsWith("/.s.PGSQL.5432")?t.slice(0,-13):t;return`postgresql://postgres:postgres@/postgres?host=${encodeURIComponent(s)}`}else return`postgresql://postgres:postgres@${e}:${o}/postgres`}async importExtensions(){if(!this.config.extensionNames?.length)return;let e={},o=["vector","live","pg_hashids","pg_ivm","pg_uuidv7","pgtap"];for(let t of this.config.extensionNames){let s=null;try{if(t.includes(":")){let[i,n]=t.split(":");if(!i||!n)throw new Error(`Invalid extension format '${t}'. Expected: package/path:exportedName`);s=(await import(i))[n],s&&(e[n]=s,console.log(`Imported extension '${n}' from '${i}'`))}else if(o.includes(t))s=(await import(`@electric-sql/pglite/${t}`))[t],s&&(e[t]=s,console.log(`Imported extension: ${t}`));else{try{s=(await import(`@electric-sql/pglite/contrib/${t}`))[t]}catch{s=(await import(`@electric-sql/pglite-${t}`))[t]}s&&(e[t]=s,console.log(`Imported extension: ${t}`))}}catch(i){throw console.error(`Failed to import extension '${t}':`,i),new Error(`Failed to import extension '${t}'`)}}return Object.keys(e).length>0?e:void 0}async initializeDatabase(){console.log(`Initializing PGLite with database: ${this.config.dbPath}`),console.log(`Debug level: ${this.config.debugLevel}`);let e=await this.importExtensions();this.db=new h(this.config.dbPath,{debug:this.config.debugLevel,extensions:e}),await this.db.waitReady,console.log("PGlite database initialized")}setupServerEventHandlers(){if(!this.server||!this.subprocessManager)throw new Error("Server or subprocess manager not initialized");this.server.addEventListener("listening",e=>{let o=e.detail;if(console.log(`PGLiteSocketServer listening on ${JSON.stringify(o)}`),this.config.runCommand&&this.subprocessManager){let t=this.createDatabaseUrl();this.subprocessManager.spawn(this.config.runCommand,t,this.config.includeDatabaseUrl)}}),this.server.addEventListener("connection",e=>{let{clientAddress:o,clientPort:t}=e.detail;console.log(`Client connected from ${o}:${t}`)}),this.server.addEventListener("error",e=>{let o=e.detail;console.error("Socket server error:",o)})}setupSignalHandlers(){process.on("SIGINT",()=>this.shutdown()),process.on("SIGTERM",()=>this.shutdown())}async start(){try{if(await this.initializeDatabase(),!this.db)throw new Error("Database initialization failed");this.server=new d({db:this.db,port:this.config.port,host:this.config.host,path:this.config.path,inspect:this.config.debugLevel>0}),this.subprocessManager=new c(e=>{this.shutdown(e)}),this.setupServerEventHandlers(),this.setupSignalHandlers(),await this.server.start()}catch(e){throw console.error("Failed to start PGLiteSocketServer:",e),e}}async shutdown(e=0){console.log(`
Shutting down PGLiteSocketServer...`),this.subprocessManager&&this.subprocessManager.terminate(this.config.shutdownTimeout),this.server&&await this.server.stop(),this.db&&await this.db.close(),console.log("Server stopped"),process.exit(e)}},c=class{constructor(e){this.childProcess=null;this.onExit=e}get process(){return this.childProcess}spawn(e,o,t){console.log(`Running command: ${e}`);let s={...process.env};t&&(s.DATABASE_URL=o,console.log(`Setting DATABASE_URL=${o}`));let i=e.trim().split(/\s+/);this.childProcess=p(i[0],i.slice(1),{env:s,stdio:"inherit"}),this.childProcess.on("error",n=>{console.error("Error running command:",n),console.log("Subprocess failed to start, shutting down..."),this.onExit(1)}),this.childProcess.on("close",n=>{console.log(`Command exited with code ${n}`),this.childProcess=null,n!==null&&n!==0&&(console.log(`Child process failed with exit code ${n}, shutting down...`),this.onExit(n))})}terminate(e){this.childProcess&&(console.log("Terminating child process..."),this.childProcess.kill("SIGTERM"),setTimeout(()=>{this.childProcess&&!this.childProcess.killed&&(console.log("Force killing child process..."),this.childProcess.kill("SIGKILL"))},e))}};async function m(){r.values.help&&(console.log(g),process.exit(0));try{let a=l.parseConfig();await new l(a).start()}catch(a){console.error("Unhandled error:",a),process.exit(1)}}m();
//# sourceMappingURL=server.js.map

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_node_modules/@electric-sql/pglite-socket/eslint.config.js generated Normal file
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import globals from 'globals'
import rootConfig from '../../eslint.config.js'
export default [
...rootConfig,
{
ignores: ['release/**/*', 'examples/**/*', 'dist/**/*'],
},
{
languageOptions: {
globals: {
...globals.browser,
...globals.node,
},
},
rules: {
...rootConfig.rules,
'@typescript-eslint/no-explicit-any': 'off',
},
},
{
files: ['tests/targets/deno/**/*.js'],
languageOptions: {
globals: {
Deno: false,
},
},
},
]

76
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import { PGLiteSocketServer } from '../src'
import { PGlite, DebugLevel } from '@electric-sql/pglite'
/*
* This is a basic example of how to use the PGLiteSocketServer class.
* It creates a PGlite instance and a PGLiteSocketServer instance and starts the server.
* It also handles SIGINT to stop the server and close the database.
* You can run this example with the following command:
*
* ```bash
* pnpm tsx examples/basic-server.ts
* ```
* or with the handy script:
* ```bash
* pnpm example:basic-server
* ```
*
* You can set the host and port with the following environment variables:
*
* ```bash
* HOST=127.0.0.1 PORT=5432 DEBUG=1 pnpm tsx examples/basic-server.ts
* ```
*
* Debug level can be set to 0, 1, 2, 3, or 4.
*
* ```bash
* DEBUG=1 pnpm tsx examples/basic-server.ts
* ```
* You can also use a UNIX socket instead of the host:port
*
* ```bash
* UNIX=/tmp/.s.PGSQL.5432 DEBUG=1 pnpm tsx examples/basic-server.ts
* ```
*/
const UNIX = process.env.UNIX
const PORT = process.env.PORT ? parseInt(process.env.PORT) : 5432
const HOST = process.env.HOST ?? '127.0.0.1'
const DEBUG = process.env.DEBUG
? (parseInt(process.env.DEBUG) as DebugLevel)
: 0
// Create a PGlite instance
const db = await PGlite.create({
debug: DEBUG,
})
// Check if the database is working
console.log(await db.query('SELECT version()'))
// Create a PGLiteSocketServer instance
const server = new PGLiteSocketServer({
db,
port: PORT,
host: HOST,
path: UNIX,
inspect: !!DEBUG, // Print the incoming and outgoing data to the console
})
server.addEventListener('listening', (event) => {
const detail = (
event as CustomEvent<{ port: number; host: string } | { host: string }>
).detail
console.log(`Server listening on ${JSON.stringify(detail)}`)
})
// Start the server
await server.start()
// Handle SIGINT to stop the server and close the database
process.on('SIGINT', async () => {
await server.stop()
await db.close()
console.log('Server stopped and database closed')
process.exit(0)
})

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{
"name": "@electric-sql/pglite-socket",
"version": "0.0.20",
"description": "A socket implementation for PGlite enabling remote connections",
"author": "Electric DB Limited",
"homepage": "https://pglite.dev",
"license": "Apache-2.0",
"repository": {
"type": "git",
"url": "git+https://github.com/electric-sql/pglite",
"directory": "packages/pglite-socket"
},
"keywords": [
"postgres",
"sql",
"database",
"wasm",
"pglite",
"socket"
],
"private": false,
"publishConfig": {
"access": "public"
},
"type": "module",
"main": "dist/index.cjs",
"module": "dist/index.js",
"types": "dist/index.d.ts",
"exports": {
".": {
"import": {
"types": "./dist/index.d.ts",
"default": "./dist/index.js"
},
"require": {
"types": "./dist/index.d.cts",
"default": "./dist/index.cjs"
}
}
},
"bin": {
"pglite-server": "./dist/scripts/server.js"
},
"devDependencies": {
"@arethetypeswrong/cli": "^0.18.1",
"@types/emscripten": "^1.41.1",
"@types/node": "^20.16.11",
"pg": "^8.14.0",
"postgres": "^3.4.5",
"tsx": "^4.19.2",
"vitest": "^1.3.1",
"@electric-sql/pg-protocol": "0.0.4",
"@electric-sql/pglite": "0.3.15"
},
"peerDependencies": {
"@electric-sql/pglite": "0.3.15"
},
"scripts": {
"build": "tsup",
"check:exports": "attw . --pack --profile node16",
"lint": "eslint ./src ./tests --report-unused-disable-directives --max-warnings 0",
"format": "prettier --write ./src ./tests",
"typecheck": "tsc",
"stylecheck": "pnpm lint && prettier --check ./src ./tests",
"test": "vitest",
"example:basic-server": "tsx examples/basic-server.ts",
"pglite-server:dev": "tsx --watch src/scripts/server.ts"
}
}

720
_node_modules/@electric-sql/pglite-socket/src/index.ts generated Normal file
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import type { PGlite } from '@electric-sql/pglite'
import { createServer, Server, Socket } from 'net'
// Connection queue timeout in milliseconds
export const CONNECTION_QUEUE_TIMEOUT = 60000 // 60 seconds
/**
* Options for creating a PGLiteSocketHandler
*/
export interface PGLiteSocketHandlerOptions {
/** The PGlite database instance */
db: PGlite
/** Whether to close the socket when detached (default: false) */
closeOnDetach?: boolean
/** Print the incoming and outgoing data to the console in hex and ascii */
inspect?: boolean
/** Enable debug logging of method calls */
debug?: boolean
}
/**
* Low-level handler for a single socket connection to PGLite
* Handles the raw protocol communication between a socket and PGLite
*/
export class PGLiteSocketHandler extends EventTarget {
readonly db: PGlite
private socket: Socket | null = null
private active = false
private closeOnDetach: boolean
private resolveLock?: () => void
private rejectLock?: (err: Error) => void
private inspect: boolean
private debug: boolean
private readonly id: number
// Static counter for generating unique handler IDs
private static nextHandlerId = 1
/**
* Create a new PGLiteSocketHandler
* @param options Options for the handler
*/
constructor(options: PGLiteSocketHandlerOptions) {
super()
this.db = options.db
this.closeOnDetach = options.closeOnDetach ?? false
this.inspect = options.inspect ?? false
this.debug = options.debug ?? false
this.id = PGLiteSocketHandler.nextHandlerId++
this.log('constructor: created new handler')
}
/**
* Get the unique ID of this handler
*/
public get handlerId(): number {
return this.id
}
/**
* Log a message if debug is enabled
* @private
*/
private log(message: string, ...args: any[]): void {
if (this.debug) {
console.log(`[PGLiteSocketHandler#${this.id}] ${message}`, ...args)
}
}
/**
* Attach a socket to this handler
* @param socket The socket to attach
* @returns this handler instance
* @throws Error if a socket is already attached
*/
public async attach(socket: Socket): Promise<PGLiteSocketHandler> {
this.log(
`attach: attaching socket from ${socket.remoteAddress}:${socket.remotePort}`,
)
if (this.socket) {
throw new Error('Socket already attached')
}
this.socket = socket
this.active = true
// Ensure the PGlite instance is ready
this.log(`attach: waiting for PGlite to be ready`)
await this.db.waitReady
// Hold the lock on the PGlite instance
this.log(`attach: acquiring exclusive lock on PGlite instance`)
await new Promise<void>((resolve) => {
this.db.runExclusive(() => {
// Ensure we have the lock on the PGlite instance
resolve()
// Use a promise to hold the lock on the PGlite instance
// this can be resolved or rejected by the handler to release the lock
return new Promise<void>((resolveLock, rejectLock) => {
this.resolveLock = resolveLock
this.rejectLock = rejectLock
})
})
})
// Setup event handlers
this.log(`attach: setting up socket event handlers`)
socket.on('data', async (data) => {
try {
const result = await this.handleData(data)
this.log(`socket on data sent: ${result} bytes`)
} catch (err) {
this.log('socket on data error: ', err)
}
})
socket.on('error', (err) => this.handleError(err))
socket.on('close', () => this.handleClose())
return this
}
/**
* Detach the current socket from this handler
* @param close Whether to close the socket when detaching (overrides constructor option)
* @returns this handler instance
*/
public detach(close?: boolean): PGLiteSocketHandler {
this.log(`detach: detaching socket, close=${close ?? this.closeOnDetach}`)
if (!this.socket) {
this.log(`detach: no socket attached, nothing to do`)
return this
}
// Remove all listeners
this.socket.removeAllListeners('data')
this.socket.removeAllListeners('error')
this.socket.removeAllListeners('close')
// Close the socket if requested
if (close ?? this.closeOnDetach) {
if (this.socket.writable) {
this.log(`detach: closing socket`)
this.socket.end()
this.socket.destroy()
}
}
// Release the lock on the PGlite instance
this.log(`detach: releasing exclusive lock on PGlite instance`)
this.resolveLock?.()
this.socket = null
this.active = false
return this
}
/**
* Check if a socket is currently attached
*/
public get isAttached(): boolean {
return this.socket !== null
}
/**
* Handle incoming data from the socket
*/
private async handleData(data: Buffer): Promise<number> {
if (!this.socket || !this.active) {
this.log(`handleData: no active socket, ignoring data`)
return new Promise((_, reject) => reject(`no active socket`))
}
this.log(`handleData: received ${data.length} bytes`)
// Print the incoming data to the console
this.inspectData('incoming', data)
try {
// Process the raw protocol data
this.log(`handleData: sending data to PGlite for processing`)
const result = await this.db.execProtocolRaw(new Uint8Array(data))
this.log(`handleData: received ${result.length} bytes from PGlite`)
// Print the outgoing data to the console
this.inspectData('outgoing', result)
// Send the result back if the socket is still connected
if (this.socket && this.socket.writable && this.active) {
if (result.length <= 0) {
this.log(`handleData: cowardly refusing to send empty packet`)
return new Promise((_, reject) => reject('no data'))
}
const promise = new Promise<number>((resolve, reject) => {
this.log(`handleData: writing response to socket`)
if (this.socket) {
this.socket.write(Buffer.from(result), (err?: Error) => {
if (err) {
reject(`Error while writing to the socket ${err.toString()}`)
} else {
resolve(result.length)
}
})
} else {
reject(`No socket`)
}
})
// Emit data event with byte sizes
this.dispatchEvent(
new CustomEvent('data', {
detail: { incoming: data.length, outgoing: result.length },
}),
)
return promise
} else {
this.log(
`handleData: socket no longer writable or active, discarding response`,
)
return new Promise((_, reject) =>
reject(`No socket, not active or not writeable`),
)
}
} catch (err) {
this.log(`handleData: error processing data:`, err)
this.handleError(err as Error)
return new Promise((_, reject) =>
reject(`Error while processing data ${(err as Error).toString()}`),
)
}
}
/**
* Handle errors from the socket
*/
private handleError(err: Error): void {
this.log(`handleError:`, err)
// Emit error event
this.dispatchEvent(new CustomEvent('error', { detail: err }))
// Reject the lock on the PGlite instance
this.log(`handleError: rejecting exclusive lock on PGlite instance`)
this.rejectLock?.(err)
this.resolveLock = undefined
this.rejectLock = undefined
// Close the connection on error
this.detach(true)
}
/**
* Handle socket close event
*/
private handleClose(): void {
this.log(`handleClose: socket closed`)
this.dispatchEvent(new CustomEvent('close'))
this.detach(false) // Already closed, just clean up
}
/**
* Print data in hex and ascii to the console
*/
private inspectData(
direction: 'incoming' | 'outgoing',
data: Buffer | Uint8Array,
): void {
if (!this.inspect) return
console.log('-'.repeat(75))
if (direction === 'incoming') {
console.log('-> incoming', data.length, 'bytes')
} else {
console.log('<- outgoing', data.length, 'bytes')
}
// Process 16 bytes per line
for (let offset = 0; offset < data.length; offset += 16) {
// Calculate current chunk size (may be less than 16 for the last chunk)
const chunkSize = Math.min(16, data.length - offset)
// Build the hex representation
let hexPart = ''
for (let i = 0; i < 16; i++) {
if (i < chunkSize) {
const byte = data[offset + i]
hexPart += byte.toString(16).padStart(2, '0') + ' '
} else {
hexPart += ' ' // 3 spaces for missing bytes
}
}
// Build the ASCII representation
let asciiPart = ''
for (let i = 0; i < chunkSize; i++) {
const byte = data[offset + i]
// Use printable characters (32-126), replace others with a dot
asciiPart += byte >= 32 && byte <= 126 ? String.fromCharCode(byte) : '.'
}
// Print the line with offset in hex, hex values, and ASCII representation
console.log(
`${offset.toString(16).padStart(8, '0')} ${hexPart} ${asciiPart}`,
)
}
}
}
/**
* Represents a queued connection with timeout
*/
interface QueuedConnection {
socket: Socket
clientInfo: {
clientAddress: string
clientPort: number
}
timeoutId: NodeJS.Timeout
}
/**
* Options for creating a PGLiteSocketServer
*/
export interface PGLiteSocketServerOptions {
/** The PGlite database instance */
db: PGlite
/** The port to listen on (default: 5432) */
port?: number
/** The host to bind to (default: 127.0.0.1) */
host?: string
/** Unix socket path to bind to (default: undefined). If specified, takes precedence over host:port */
path?: string
/** Print the incoming and outgoing data to the console in hex and ascii */
inspect?: boolean
/** Connection queue timeout in milliseconds (default: 10000) */
connectionQueueTimeout?: number
/** Enable debug logging of method calls */
debug?: boolean
}
/**
* High-level server that manages socket connections to PGLite
* Creates and manages a TCP server and handles client connections
*/
export class PGLiteSocketServer extends EventTarget {
readonly db: PGlite
private server: Server | null = null
private port?: number
private host?: string
private path?: string
private active = false
private inspect: boolean
private debug: boolean
private connectionQueueTimeout: number
private activeHandler: PGLiteSocketHandler | null = null
private connectionQueue: QueuedConnection[] = []
private handlerCount: number = 0
/**
* Create a new PGLiteSocketServer
* @param options Options for the server
*/
constructor(options: PGLiteSocketServerOptions) {
super()
this.db = options.db
if (options.path) {
this.path = options.path
} else {
if (typeof options.port === 'number') {
// Keep port undefined on port 0, will be set by the OS when we start the server.
this.port = options.port ?? options.port
} else {
this.port = 5432
}
this.host = options.host || '127.0.0.1'
}
this.inspect = options.inspect ?? false
this.debug = options.debug ?? false
this.connectionQueueTimeout =
options.connectionQueueTimeout ?? CONNECTION_QUEUE_TIMEOUT
this.log(`constructor: created server on ${this.host}:${this.port}`)
this.log(
`constructor: connection queue timeout: ${this.connectionQueueTimeout}ms`,
)
}
/**
* Log a message if debug is enabled
* @private
*/
private log(message: string, ...args: any[]): void {
if (this.debug) {
console.log(`[PGLiteSocketServer] ${message}`, ...args)
}
}
/**
* Start the socket server
* @returns Promise that resolves when the server is listening
*/
public async start(): Promise<void> {
this.log(`start: starting server on ${this.getServerConn()}`)
if (this.server) {
throw new Error('Socket server already started')
}
this.active = true
this.server = createServer((socket) => this.handleConnection(socket))
return new Promise<void>((resolve, reject) => {
if (!this.server) return reject(new Error('Server not initialized'))
this.server.on('error', (err) => {
this.log(`start: server error:`, err)
this.dispatchEvent(new CustomEvent('error', { detail: err }))
reject(err)
})
if (this.path) {
this.server.listen(this.path, () => {
this.log(`start: server listening on ${this.getServerConn()}`)
this.dispatchEvent(
new CustomEvent('listening', {
detail: { path: this.path },
}),
)
resolve()
})
} else {
const server = this.server
server.listen(this.port, this.host, () => {
const address = server.address()
// We are not using pipes, so return type should be AddressInfo
if (address === null || typeof address !== 'object') {
throw Error('Expected address info')
}
// Assign the new port number
this.port = address.port
this.log(`start: server listening on ${this.getServerConn()}`)
this.dispatchEvent(
new CustomEvent('listening', {
detail: { port: this.port, host: this.host },
}),
)
resolve()
})
}
})
}
public getServerConn(): string {
if (this.path) return this.path
return `${this.host}:${this.port}`
}
/**
* Stop the socket server
* @returns Promise that resolves when the server is closed
*/
public async stop(): Promise<void> {
this.log(`stop: stopping server`)
this.active = false
// Clear connection queue
this.log(
`stop: clearing connection queue (${this.connectionQueue.length} connections)`,
)
this.connectionQueue.forEach((queuedConn) => {
clearTimeout(queuedConn.timeoutId)
if (queuedConn.socket.writable) {
this.log(
`stop: closing queued connection from ${queuedConn.clientInfo.clientAddress}:${queuedConn.clientInfo.clientPort}`,
)
queuedConn.socket.end()
}
})
this.connectionQueue = []
// Detach active handler if exists
if (this.activeHandler) {
this.log(`stop: detaching active handler #${this.activeHandlerId}`)
this.activeHandler.detach(true)
this.activeHandler = null
}
if (!this.server) {
this.log(`stop: server not running, nothing to do`)
return Promise.resolve()
}
return new Promise<void>((resolve) => {
if (!this.server) return resolve()
this.server.close(() => {
this.log(`stop: server closed`)
this.server = null
this.dispatchEvent(new CustomEvent('close'))
resolve()
})
})
}
/**
* Get the active handler ID, or null if no active handler
*/
private get activeHandlerId(): number | null {
return this.activeHandler?.handlerId ?? null
}
/**
* Handle a new client connection
*/
private async handleConnection(socket: Socket): Promise<void> {
const clientInfo = {
clientAddress: socket.remoteAddress || 'unknown',
clientPort: socket.remotePort || 0,
}
this.log(
`handleConnection: new connection from ${clientInfo.clientAddress}:${clientInfo.clientPort}`,
)
// If server is not active, close the connection immediately
if (!this.active) {
this.log(`handleConnection: server not active, closing connection`)
socket.end()
return
}
// If we don't have an active handler or it's not attached, we can use this connection immediately
if (!this.activeHandler || !this.activeHandler.isAttached) {
this.log(`handleConnection: no active handler, attaching socket directly`)
this.dispatchEvent(new CustomEvent('connection', { detail: clientInfo }))
await this.attachSocketToNewHandler(socket, clientInfo)
return
}
// Otherwise, queue the connection
this.log(
`handleConnection: active handler #${this.activeHandlerId} exists, queueing connection`,
)
this.enqueueConnection(socket, clientInfo)
}
/**
* Add a connection to the queue
*/
private enqueueConnection(
socket: Socket,
clientInfo: { clientAddress: string; clientPort: number },
): void {
this.log(
`enqueueConnection: queueing connection from ${clientInfo.clientAddress}:${clientInfo.clientPort}, timeout: ${this.connectionQueueTimeout}ms`,
)
// Set a timeout for this queued connection
const timeoutId = setTimeout(() => {
this.log(
`enqueueConnection: timeout for connection from ${clientInfo.clientAddress}:${clientInfo.clientPort}`,
)
// Remove from queue
this.connectionQueue = this.connectionQueue.filter(
(queuedConn) => queuedConn.socket !== socket,
)
// End the connection if it's still open
if (socket.writable) {
this.log(`enqueueConnection: closing timed out connection`)
socket.end()
}
this.dispatchEvent(
new CustomEvent('queueTimeout', {
detail: { ...clientInfo, queueSize: this.connectionQueue.length },
}),
)
}, this.connectionQueueTimeout)
// Add to queue
this.connectionQueue.push({ socket, clientInfo, timeoutId })
this.log(
`enqueueConnection: connection queued, queue size: ${this.connectionQueue.length}`,
)
this.dispatchEvent(
new CustomEvent('queuedConnection', {
detail: { ...clientInfo, queueSize: this.connectionQueue.length },
}),
)
}
/**
* Process the next connection in the queue
*/
private processNextInQueue(): void {
this.log(
`processNextInQueue: processing next connection, queue size: ${this.connectionQueue.length}`,
)
// No connections in queue or server not active
if (this.connectionQueue.length === 0 || !this.active) {
this.log(
`processNextInQueue: no connections in queue or server not active, nothing to do`,
)
return
}
// Get the next connection
const nextConn = this.connectionQueue.shift()
if (!nextConn) return
this.log(
`processNextInQueue: processing connection from ${nextConn.clientInfo.clientAddress}:${nextConn.clientInfo.clientPort}`,
)
// Clear the timeout
clearTimeout(nextConn.timeoutId)
// Check if the socket is still valid
if (!nextConn.socket.writable) {
this.log(
`processNextInQueue: socket no longer writable, skipping to next connection`,
)
// Socket closed while waiting, process next in queue
this.processNextInQueue()
return
}
// Attach this socket to a new handler
this.attachSocketToNewHandler(nextConn.socket, nextConn.clientInfo).catch(
(err) => {
this.log(`processNextInQueue: error attaching socket:`, err)
this.dispatchEvent(new CustomEvent('error', { detail: err }))
// Try the next connection
this.processNextInQueue()
},
)
}
/**
* Attach a socket to a new handler
*/
private async attachSocketToNewHandler(
socket: Socket,
clientInfo: { clientAddress: string; clientPort: number },
): Promise<void> {
this.handlerCount++
this.log(
`attachSocketToNewHandler: creating new handler for ${clientInfo.clientAddress}:${clientInfo.clientPort} (handler #${this.handlerCount})`,
)
// Create a new handler for this connection
const handler = new PGLiteSocketHandler({
db: this.db,
closeOnDetach: true,
inspect: this.inspect,
debug: this.debug,
})
// Forward error events from the handler
handler.addEventListener('error', (event) => {
this.log(
`handler #${handler.handlerId}: error from handler:`,
(event as CustomEvent<Error>).detail,
)
this.dispatchEvent(
new CustomEvent('error', {
detail: (event as CustomEvent<Error>).detail,
}),
)
})
// Handle close event to process next queued connection
handler.addEventListener('close', () => {
this.log(`handler #${handler.handlerId}: closed`)
// If this is our active handler, clear it
if (this.activeHandler === handler) {
this.log(
`handler #${handler.handlerId}: was active handler, processing next connection in queue`,
)
this.activeHandler = null
// Process next connection in queue
this.processNextInQueue()
}
})
try {
// Set as active handler
this.activeHandler = handler
this.log(`handler #${handler.handlerId}: attaching socket`)
// Attach the socket to the handler
await handler.attach(socket)
this.dispatchEvent(new CustomEvent('connection', { detail: clientInfo }))
} catch (err) {
// If there was an error attaching, clean up
this.log(`handler #${handler.handlerId}: error attaching socket:`, err)
this.activeHandler = null
if (socket.writable) {
socket.end()
}
throw err
}
}
}

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_node_modules/@electric-sql/pglite-socket/src/scripts/server.ts generated Normal file
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#!/usr/bin/env node
import { PGlite, DebugLevel } from '@electric-sql/pglite'
import type { Extension, Extensions } from '@electric-sql/pglite'
import { PGLiteSocketServer } from '../index'
import { parseArgs } from 'node:util'
import { spawn, ChildProcess } from 'node:child_process'
// Define command line argument options
const args = parseArgs({
options: {
db: {
type: 'string',
short: 'd',
default: 'memory://',
help: 'Database path (relative or absolute). Use memory:// for in-memory database.',
},
port: {
type: 'string',
short: 'p',
default: '5432',
help: 'Port to listen on',
},
host: {
type: 'string',
short: 'h',
default: '127.0.0.1',
help: 'Host to bind to',
},
path: {
type: 'string',
short: 'u',
default: undefined,
help: 'unix socket to bind to. Takes precedence over host:port',
},
debug: {
type: 'string',
short: 'v',
default: '0',
help: 'Debug level (0-5)',
},
extensions: {
type: 'string',
short: 'e',
default: undefined,
help: 'Comma-separated list of extensions to load (e.g., vector,pgcrypto)',
},
run: {
type: 'string',
short: 'r',
default: undefined,
help: 'Command to run after server starts',
},
'include-database-url': {
type: 'boolean',
default: false,
help: 'Include DATABASE_URL in the environment of the subprocess',
},
'shutdown-timeout': {
type: 'string',
default: '5000',
help: 'Timeout in milliseconds for graceful subprocess shutdown (default: 5000)',
},
help: {
type: 'boolean',
short: '?',
default: false,
help: 'Show help',
},
},
})
const help = `PGlite Socket Server
Usage: pglite-server [options]
Options:
-d, --db=PATH Database path (default: memory://)
-p, --port=PORT Port to listen on (default: 5432)
-h, --host=HOST Host to bind to (default: 127.0.0.1)
-u, --path=UNIX Unix socket to bind to (default: undefined). Takes precedence over host:port
-v, --debug=LEVEL Debug level 0-5 (default: 0)
-e, --extensions=LIST Comma-separated list of extensions to load
Formats: vector, pgcrypto (built-in/contrib)
@org/package/path:exportedName (npm package)
-r, --run=COMMAND Command to run after server starts
--include-database-url Include DATABASE_URL in subprocess environment
--shutdown-timeout=MS Timeout for graceful subprocess shutdown in ms (default: 5000)
`
interface ServerConfig {
dbPath: string
port: number
host: string
path?: string
debugLevel: DebugLevel
extensionNames?: string[]
runCommand?: string
includeDatabaseUrl: boolean
shutdownTimeout: number
}
class PGLiteServerRunner {
private config: ServerConfig
private db: PGlite | null = null
private server: PGLiteSocketServer | null = null
private subprocessManager: SubprocessManager | null = null
constructor(config: ServerConfig) {
this.config = config
}
static parseConfig(): ServerConfig {
const extensionsArg = args.values.extensions as string | undefined
return {
dbPath: args.values.db as string,
port: parseInt(args.values.port as string, 10),
host: args.values.host as string,
path: args.values.path as string,
debugLevel: parseInt(args.values.debug as string, 10) as DebugLevel,
extensionNames: extensionsArg
? extensionsArg.split(',').map((e) => e.trim())
: undefined,
runCommand: args.values.run as string,
includeDatabaseUrl: args.values['include-database-url'] as boolean,
shutdownTimeout: parseInt(args.values['shutdown-timeout'] as string, 10),
}
}
private createDatabaseUrl(): string {
const { host, port, path } = this.config
if (path) {
// Unix socket connection
const socketDir = path.endsWith('/.s.PGSQL.5432')
? path.slice(0, -13)
: path
return `postgresql://postgres:postgres@/postgres?host=${encodeURIComponent(socketDir)}`
} else {
// TCP connection
return `postgresql://postgres:postgres@${host}:${port}/postgres`
}
}
private async importExtensions(): Promise<Extensions | undefined> {
if (!this.config.extensionNames?.length) {
return undefined
}
const extensions: Extensions = {}
// Built-in extensions that are not in contrib
const builtInExtensions = [
'vector',
'live',
'pg_hashids',
'pg_ivm',
'pg_uuidv7',
'pgtap',
]
for (const name of this.config.extensionNames) {
let ext: Extension | null = null
try {
// Check if this is a custom package path (contains ':')
// Format: @org/package/path:exportedName or package/path:exportedName
if (name.includes(':')) {
const [packagePath, exportName] = name.split(':')
if (!packagePath || !exportName) {
throw new Error(
`Invalid extension format '${name}'. Expected: package/path:exportedName`,
)
}
const mod = await import(packagePath)
ext = mod[exportName] as Extension
if (ext) {
extensions[exportName] = ext
console.log(
`Imported extension '${exportName}' from '${packagePath}'`,
)
}
} else if (builtInExtensions.includes(name)) {
// Built-in extension (e.g., @electric-sql/pglite/vector)
const mod = await import(`@electric-sql/pglite/${name}`)
ext = mod[name] as Extension
if (ext) {
extensions[name] = ext
console.log(`Imported extension: ${name}`)
}
} else {
// Try contrib first (e.g., @electric-sql/pglite/contrib/pgcrypto)
try {
const mod = await import(`@electric-sql/pglite/contrib/${name}`)
ext = mod[name] as Extension
} catch {
// Fall back to external package (e.g., @electric-sql/pglite-<extension>)
const mod = await import(`@electric-sql/pglite-${name}`)
ext = mod[name] as Extension
}
if (ext) {
extensions[name] = ext
console.log(`Imported extension: ${name}`)
}
}
} catch (error) {
console.error(`Failed to import extension '${name}':`, error)
throw new Error(`Failed to import extension '${name}'`)
}
}
return Object.keys(extensions).length > 0 ? extensions : undefined
}
private async initializeDatabase(): Promise<void> {
console.log(`Initializing PGLite with database: ${this.config.dbPath}`)
console.log(`Debug level: ${this.config.debugLevel}`)
const extensions = await this.importExtensions()
this.db = new PGlite(this.config.dbPath, {
debug: this.config.debugLevel,
extensions,
})
await this.db.waitReady
console.log('PGlite database initialized')
}
private setupServerEventHandlers(): void {
if (!this.server || !this.subprocessManager) {
throw new Error('Server or subprocess manager not initialized')
}
this.server.addEventListener('listening', (event) => {
const detail = (
event as CustomEvent<{ port: number; host: string } | { host: string }>
).detail
console.log(`PGLiteSocketServer listening on ${JSON.stringify(detail)}`)
// Run the command after server starts listening
if (this.config.runCommand && this.subprocessManager) {
const databaseUrl = this.createDatabaseUrl()
this.subprocessManager.spawn(
this.config.runCommand,
databaseUrl,
this.config.includeDatabaseUrl,
)
}
})
this.server.addEventListener('connection', (event) => {
const { clientAddress, clientPort } = (
event as CustomEvent<{ clientAddress: string; clientPort: number }>
).detail
console.log(`Client connected from ${clientAddress}:${clientPort}`)
})
this.server.addEventListener('error', (event) => {
const error = (event as CustomEvent<Error>).detail
console.error('Socket server error:', error)
})
}
private setupSignalHandlers(): void {
process.on('SIGINT', () => this.shutdown())
process.on('SIGTERM', () => this.shutdown())
}
async start(): Promise<void> {
try {
// Initialize database
await this.initializeDatabase()
if (!this.db) {
throw new Error('Database initialization failed')
}
// Create and setup the socket server
this.server = new PGLiteSocketServer({
db: this.db,
port: this.config.port,
host: this.config.host,
path: this.config.path,
inspect: this.config.debugLevel > 0,
})
// Create subprocess manager
this.subprocessManager = new SubprocessManager((exitCode) => {
this.shutdown(exitCode)
})
// Setup event handlers
this.setupServerEventHandlers()
this.setupSignalHandlers()
// Start the server
await this.server.start()
} catch (error) {
console.error('Failed to start PGLiteSocketServer:', error)
throw error
}
}
async shutdown(exitCode: number = 0): Promise<void> {
console.log('\nShutting down PGLiteSocketServer...')
// Terminate subprocess if running
if (this.subprocessManager) {
this.subprocessManager.terminate(this.config.shutdownTimeout)
}
// Stop server
if (this.server) {
await this.server.stop()
}
// Close database
if (this.db) {
await this.db.close()
}
console.log('Server stopped')
process.exit(exitCode)
}
}
class SubprocessManager {
private childProcess: ChildProcess | null = null
private onExit: (code: number) => void
constructor(onExit: (code: number) => void) {
this.onExit = onExit
}
get process(): ChildProcess | null {
return this.childProcess
}
spawn(
command: string,
databaseUrl: string,
includeDatabaseUrl: boolean,
): void {
console.log(`Running command: ${command}`)
// Prepare environment variables
const env = { ...process.env }
if (includeDatabaseUrl) {
env.DATABASE_URL = databaseUrl
console.log(`Setting DATABASE_URL=${databaseUrl}`)
}
// Parse and spawn the command
const commandParts = command.trim().split(/\s+/)
this.childProcess = spawn(commandParts[0], commandParts.slice(1), {
env,
stdio: 'inherit',
})
this.childProcess.on('error', (error) => {
console.error('Error running command:', error)
// If subprocess fails to start, shutdown the server
console.log('Subprocess failed to start, shutting down...')
this.onExit(1)
})
this.childProcess.on('close', (code) => {
console.log(`Command exited with code ${code}`)
this.childProcess = null
// If child process exits with non-zero code, notify parent
if (code !== null && code !== 0) {
console.log(
`Child process failed with exit code ${code}, shutting down...`,
)
this.onExit(code)
}
})
}
terminate(timeout: number): void {
if (this.childProcess) {
console.log('Terminating child process...')
this.childProcess.kill('SIGTERM')
// Give it a moment to exit gracefully, then force kill if needed
setTimeout(() => {
if (this.childProcess && !this.childProcess.killed) {
console.log('Force killing child process...')
this.childProcess.kill('SIGKILL')
}
}, timeout)
}
}
}
// Main execution
async function main() {
// Show help and exit if requested
if (args.values.help) {
console.log(help)
process.exit(0)
}
try {
const config = PGLiteServerRunner.parseConfig()
const serverRunner = new PGLiteServerRunner(config)
await serverRunner.start()
} catch (error) {
console.error('Unhandled error:', error)
process.exit(1)
}
}
// Run the main function
main()

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_node_modules/@electric-sql/pglite-socket/tests/index.test.ts generated Normal file
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import {
describe,
it,
expect,
beforeEach,
afterEach,
vi,
beforeAll,
afterAll,
} from 'vitest'
import { PGlite } from '@electric-sql/pglite'
import {
PGLiteSocketHandler,
PGLiteSocketServer,
CONNECTION_QUEUE_TIMEOUT,
} from '../src'
import { Socket, createConnection } from 'net'
import { existsSync } from 'fs'
import { unlink } from 'fs/promises'
// Mock timers for testing timeouts
beforeAll(() => {
vi.useFakeTimers()
})
afterAll(() => {
vi.useRealTimers()
})
async function testSocket(
fn: (socketOptions: {
host?: string
port?: number
path?: string
}) => Promise<void>,
) {
describe('TCP socket server', async () => {
await fn({ host: '127.0.0.1', port: 5433 })
})
describe('unix socket server', async () => {
await fn({ path: '/tmp/.s.PGSQL.5432' })
})
}
// Create a mock Socket for testing
const createMockSocket = () => {
const eventHandlers: Record<string, Array<(data: any) => void>> = {}
const mockSocket = {
// Socket methods we need for testing
removeAllListeners: vi.fn(),
end: vi.fn(),
destroy: vi.fn(),
write: vi.fn(),
writable: true,
remoteAddress: '127.0.0.1',
remotePort: 12345,
// Mock on method with tracking of handlers
on: vi
.fn()
.mockImplementation((event: string, callback: (data: any) => void) => {
if (!eventHandlers[event]) {
eventHandlers[event] = []
}
eventHandlers[event].push(callback)
return mockSocket
}),
// Store event handlers for testing
eventHandlers,
// Helper to emit events
emit(event: string, data: any) {
if (eventHandlers[event]) {
eventHandlers[event].forEach((handler) => handler(data))
}
},
}
return mockSocket as unknown as Socket
}
describe('PGLiteSocketHandler', () => {
let db: PGlite
let handler: PGLiteSocketHandler
let mockSocket: ReturnType<typeof createMockSocket> & {
eventHandlers: Record<string, Array<(data: any) => void>>
}
beforeEach(async () => {
// Create a PGlite instance for testing
db = await PGlite.create()
handler = new PGLiteSocketHandler({ db })
mockSocket = createMockSocket() as any
})
afterEach(async () => {
// Ensure handler is detached before closing the database
if (handler?.isAttached) {
handler.detach(true)
}
// Clean up
await db.close()
})
it('should attach to a socket', async () => {
// Attach mock socket to handler
await handler.attach(mockSocket)
// Check that the socket is attached
expect(handler.isAttached).toBe(true)
expect(mockSocket.on).toHaveBeenCalledWith('data', expect.any(Function))
expect(mockSocket.on).toHaveBeenCalledWith('error', expect.any(Function))
expect(mockSocket.on).toHaveBeenCalledWith('close', expect.any(Function))
})
it('should detach from a socket', async () => {
// First attach
await handler.attach(mockSocket)
expect(handler.isAttached).toBe(true)
// Then detach
handler.detach(false)
expect(handler.isAttached).toBe(false)
expect(mockSocket.removeAllListeners).toHaveBeenCalled()
})
it('should close socket when detaching with close option', async () => {
// Attach mock socket to handler
await handler.attach(mockSocket)
// Detach with close option
handler.detach(true)
expect(handler.isAttached).toBe(false)
expect(mockSocket.end).toHaveBeenCalled()
})
it('should reject attaching multiple sockets', async () => {
// Attach first socket
await handler.attach(mockSocket)
// Trying to attach another socket should throw an error
const anotherMockSocket = createMockSocket()
await expect(handler.attach(anotherMockSocket)).rejects.toThrow(
'Socket already attached',
)
})
it('should emit error event when socket has error', async () => {
// Set up error listener
const errorHandler = vi.fn()
handler.addEventListener('error', errorHandler)
// Attach socket
await handler.attach(mockSocket)
// Mock the event handler logic directly instead of triggering actual error handlers
const customEvent = new CustomEvent('error', {
detail: { code: 'MOCK_ERROR', message: 'Test socket error' },
})
handler.dispatchEvent(customEvent)
// Verify error handler was called
expect(errorHandler).toHaveBeenCalled()
})
it('should emit close event when socket closes', async () => {
// Set up close listener
const closeHandler = vi.fn()
handler.addEventListener('close', closeHandler)
// Attach socket
await handler.attach(mockSocket)
// Mock the event handler logic directly instead of triggering actual socket handlers
const customEvent = new CustomEvent('close')
handler.dispatchEvent(customEvent)
// Verify close handler was called
expect(closeHandler).toHaveBeenCalled()
})
})
testSocket(async (connOptions) => {
describe('PGLiteSocketServer', () => {
let db: PGlite
let server: PGLiteSocketServer
beforeEach(async () => {
// Create a PGlite instance for testing
db = await PGlite.create()
if (connOptions.path) {
if (existsSync(connOptions.path)) {
try {
await unlink(connOptions.path)
console.log(`Removed old socket at ${connOptions.path}`)
} catch (err) {
console.log('')
}
}
}
})
afterEach(async () => {
// Stop server if running
try {
await server?.stop()
} catch (e) {
// Ignore errors during cleanup
}
// Close database
await db.close()
})
it('should start and stop server', async () => {
// Create server
server = new PGLiteSocketServer({
db,
host: connOptions.host,
port: connOptions.port,
path: connOptions.path,
})
// Start server
await server.start()
// Try to connect to confirm server is running
let client
if (connOptions.path) {
// unix socket
client = createConnection({ path: connOptions.path })
} else {
if (connOptions.port) {
// TCP socket
client = createConnection({
port: connOptions.port,
host: connOptions.host,
})
} else {
throw new Error(
'need to specify connOptions.path or connOptions.port',
)
}
}
client.on('error', () => {
// Ignore connection errors during test
})
await new Promise<void>((resolve) => {
client.on('connect', () => {
client.end()
resolve()
})
// Set timeout to resolve in case connection fails
setTimeout(resolve, 100)
})
// Stop server
await server.stop()
// Try to connect again - should fail
await expect(
new Promise<void>((resolve, reject) => {
let failClient
if (connOptions.path) {
// unix socket
failClient = createConnection({ path: connOptions.path })
} else {
if (connOptions.port) {
// TCP socket
failClient = createConnection({
port: connOptions.port,
host: connOptions.host,
})
} else {
throw new Error(
'need to specify connOptions.path or connOptions.port',
)
}
}
failClient.on('error', () => {
// Expected error - connection should fail
resolve()
})
failClient.on('connect', () => {
failClient.end()
reject(new Error('Connection should have failed'))
})
// Set timeout to resolve in case no events fire
setTimeout(resolve, 100)
}),
).resolves.not.toThrow()
})
describe('Connection queuing', () => {
// Mock implementation details
// eslint-disable-next-line @typescript-eslint/no-unused-vars
let handleConnectionSpy: any
let processNextInQueueSpy: any
let attachSocketToNewHandlerSpy: any
beforeEach(() => {
// Create a server with a short timeout for testing
server = new PGLiteSocketServer({
db,
host: connOptions.host,
port: connOptions.port,
path: connOptions.path,
connectionQueueTimeout: 100, // Very short timeout for testing
})
// Spy on internal methods
handleConnectionSpy = vi.spyOn(server as any, 'handleConnection')
processNextInQueueSpy = vi.spyOn(server as any, 'processNextInQueue')
attachSocketToNewHandlerSpy = vi.spyOn(
server as any,
'attachSocketToNewHandler',
)
})
it('should create a handler for a new connection', async () => {
await server.start()
// Create mock socket
const socket1 = createMockSocket()
// Setup event listener
const connectionHandler = vi.fn()
server.addEventListener('connection', connectionHandler)
// Handle connection
await (server as any).handleConnection(socket1)
// Verify handler was created
expect(attachSocketToNewHandlerSpy).toHaveBeenCalledWith(
socket1,
expect.anything(),
)
expect(connectionHandler).toHaveBeenCalled()
})
it('should queue a second connection when first is active', async () => {
await server.start()
// Setup event listeners
const queuedConnectionHandler = vi.fn()
server.addEventListener('queuedConnection', queuedConnectionHandler)
// Create mock sockets
const socket1 = createMockSocket()
const socket2 = createMockSocket()
// Handle first connection
await (server as any).handleConnection(socket1)
// The first socket should be attached directly
expect(attachSocketToNewHandlerSpy).toHaveBeenCalledWith(
socket1,
expect.anything(),
)
// Handle second connection - should be queued
await (server as any).handleConnection(socket2)
// The second connection should be queued
expect(queuedConnectionHandler).toHaveBeenCalledTimes(1)
expect(queuedConnectionHandler).toHaveBeenCalledWith(
expect.objectContaining({
detail: expect.objectContaining({
queueSize: 1,
}),
}),
)
})
it('should process next connection when current connection closes', async () => {
await server.start()
// Create mock sockets
const socket1 = createMockSocket()
const socket2 = createMockSocket()
// Setup event listener
const connectionHandler = vi.fn()
server.addEventListener('connection', connectionHandler)
// Handle first connection
await (server as any).handleConnection(socket1)
// Handle second connection (will be queued)
await (server as any).handleConnection(socket2)
// First connection should be active, but clear the handler for next assertions
expect(connectionHandler).toHaveBeenCalled()
connectionHandler.mockClear()
// Simulate closing the first connection
const activeHandler = (server as any).activeHandler
activeHandler.dispatchEvent(new CustomEvent('close'))
// The next connection should be processed
expect(processNextInQueueSpy).toHaveBeenCalled()
expect(attachSocketToNewHandlerSpy).toHaveBeenCalledWith(
socket2,
expect.anything(),
)
})
it('should timeout queued connections after specified time', async () => {
await server.start()
// Setup event listeners
const queueTimeoutHandler = vi.fn()
server.addEventListener('queueTimeout', queueTimeoutHandler)
// Create mock sockets
const socket1 = createMockSocket()
const socket2 = createMockSocket()
// Handle first connection
await (server as any).handleConnection(socket1)
// Handle second connection (will be queued)
await (server as any).handleConnection(socket2)
// Fast-forward time to trigger timeout
vi.advanceTimersByTime(1001)
// The queued connection should timeout
expect(queueTimeoutHandler).toHaveBeenCalledTimes(1)
expect(socket2.end).toHaveBeenCalled()
})
it('should use default timeout value from CONNECTION_QUEUE_TIMEOUT', async () => {
// Create server without specifying timeout
const defaultServer = new PGLiteSocketServer({
db,
host: connOptions.host,
port: connOptions.port,
path: connOptions.path,
})
// Check that it's using the default timeout
expect((defaultServer as any).connectionQueueTimeout).toBe(
CONNECTION_QUEUE_TIMEOUT,
)
})
it('should clean up queue when stopping the server', async () => {
await server.start()
// Create mock sockets
const socket1 = createMockSocket()
const socket2 = createMockSocket()
// Handle first connection
await (server as any).handleConnection(socket1)
// Handle second connection (will be queued)
await (server as any).handleConnection(socket2)
// Stop the server
await server.stop()
// All connections should be closed
expect(socket1.end).toHaveBeenCalled()
expect(socket2.end).toHaveBeenCalled()
// Queue should be emptied
expect((server as any).connectionQueue).toHaveLength(0)
})
it('should start server with OS-assigned port when port is 0', async () => {
server = new PGLiteSocketServer({
db,
host: connOptions.host,
port: 0, // Let OS assign port
})
await server.start()
const assignedPort = (server as any).port
expect(assignedPort).toBeGreaterThan(1024)
// Try to connect to confirm server is running
const client = createConnection({
port: assignedPort,
host: connOptions.host,
})
await new Promise<void>((resolve, reject) => {
client.on('error', () => {
reject(new Error('Connection should have failed'))
})
client.on('connect', () => {
client.end()
resolve()
})
setTimeout(resolve, 100)
})
await server.stop()
})
})
})
})

717
_node_modules/@electric-sql/pglite-socket/tests/query-with-node-pg.test.ts generated Normal file
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import {
describe,
it,
expect,
beforeAll,
afterAll,
beforeEach,
afterEach,
} from 'vitest'
import { Client } from 'pg'
import { PGlite } from '@electric-sql/pglite'
import { PGLiteSocketServer } from '../src'
import { spawn, ChildProcess } from 'node:child_process'
import { fileURLToPath } from 'node:url'
import { dirname, join } from 'node:path'
import fs from 'fs'
const __filename = fileURLToPath(import.meta.url)
const __dirname = dirname(__filename)
/**
* Debug configuration for testing
*
* To test against a real PostgreSQL server:
* - Set DEBUG_TESTS=true as an environment variable
* - Optionally set DEBUG_TESTS_REAL_SERVER with a connection URL (defaults to localhost)
*
* Example:
* DEBUG_TESTS=true DEBUG_TESTS_REAL_SERVER=postgres://user:pass@host:port/db npm vitest ./tests/query-with-node-pg.test.ts
*/
const DEBUG_TESTS = process.env.DEBUG_TESTS === 'true'
const DEBUG_TESTS_REAL_SERVER =
process.env.DEBUG_TESTS_REAL_SERVER ||
'postgres://postgres:postgres@localhost:5432/postgres'
const TEST_PORT = 5434
describe(`PGLite Socket Server`, () => {
describe('with node-pg client', () => {
let db: PGlite
let server: PGLiteSocketServer
let client: typeof Client.prototype
let connectionConfig: any
beforeAll(async () => {
if (DEBUG_TESTS) {
console.log('TESTING WITH REAL POSTGRESQL SERVER')
console.log(`Connection URL: ${DEBUG_TESTS_REAL_SERVER}`)
} else {
console.log('TESTING WITH PGLITE SERVER')
// Create a PGlite instance
db = await PGlite.create()
// Wait for database to be ready
await db.waitReady
console.log('PGLite database ready')
// Create and start the server with explicit host
server = new PGLiteSocketServer({
db,
port: TEST_PORT,
host: '127.0.0.1',
})
// Add event listeners for debugging
server.addEventListener('error', (event) => {
console.error('Socket server error:', (event as CustomEvent).detail)
})
server.addEventListener('connection', (event) => {
console.log(
'Socket connection received:',
(event as CustomEvent).detail,
)
})
await server.start()
console.log(`PGLite Socket Server started on port ${TEST_PORT}`)
connectionConfig = {
host: '127.0.0.1',
port: TEST_PORT,
database: 'postgres',
user: 'postgres',
password: 'postgres',
// Connection timeout in milliseconds
connectionTimeoutMillis: 10000,
// Query timeout in milliseconds
statement_timeout: 5000,
}
}
})
afterAll(async () => {
if (!DEBUG_TESTS) {
// Stop server if running
if (server) {
await server.stop()
console.log('PGLite Socket Server stopped')
}
// Close database
if (db) {
await db.close()
console.log('PGLite database closed')
}
}
})
beforeEach(async () => {
// Create pg client instance before each test
if (DEBUG_TESTS) {
// Direct connection to real PostgreSQL server using URL
client = new Client({
connectionString: DEBUG_TESTS_REAL_SERVER,
connectionTimeoutMillis: 10000,
statement_timeout: 5000,
})
} else {
// Connection to PGLite Socket Server
client = new Client(connectionConfig)
}
// Connect the client
await client.connect()
})
afterEach(async () => {
// Clean up any tables created in tests
try {
await client.query('DROP TABLE IF EXISTS test_users')
} catch (e) {
console.error('Error cleaning up tables:', e)
}
// Disconnect the client after each test
if (client) {
await client.end()
}
})
it('should execute a basic SELECT query', async () => {
const result = await client.query('SELECT 1 as one')
expect(result.rows[0].one).toBe(1)
})
it('should create a table', async () => {
await client.query(`
CREATE TABLE test_users (
id SERIAL PRIMARY KEY,
name TEXT NOT NULL,
email TEXT,
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
)
`)
// Verify table exists by querying the schema
const tableCheck = await client.query(`
SELECT table_name
FROM information_schema.tables
WHERE table_schema = 'public' AND table_name = 'test_users'
`)
expect(tableCheck.rows.length).toBe(1)
expect(tableCheck.rows[0].table_name).toBe('test_users')
})
it('should insert rows into a table', async () => {
// Create table
await client.query(`
CREATE TABLE test_users (
id SERIAL PRIMARY KEY,
name TEXT NOT NULL,
email TEXT
)
`)
// Insert data
const insertResult = await client.query(`
INSERT INTO test_users (name, email)
VALUES
('Alice', 'alice@example.com'),
('Bob', 'bob@example.com')
RETURNING *
`)
expect(insertResult.rows.length).toBe(2)
expect(insertResult.rows[0].name).toBe('Alice')
expect(insertResult.rows[1].name).toBe('Bob')
// Verify data is there
const count = await client.query(
'SELECT COUNT(*)::int as count FROM test_users',
)
expect(count.rows[0].count).toBe(2)
})
it('should update rows in a table', async () => {
// Create and populate table
await client.query(`
CREATE TABLE test_users (
id SERIAL PRIMARY KEY,
name TEXT NOT NULL,
email TEXT
)
`)
await client.query(`
INSERT INTO test_users (name, email)
VALUES ('Alice', 'alice@example.com')
`)
// Update
const updateResult = await client.query(`
UPDATE test_users
SET email = 'alice.new@example.com'
WHERE name = 'Alice'
RETURNING *
`)
expect(updateResult.rows.length).toBe(1)
expect(updateResult.rows[0].email).toBe('alice.new@example.com')
})
it('should delete rows from a table', async () => {
// Create and populate table
await client.query(`
CREATE TABLE test_users (
id SERIAL PRIMARY KEY,
name TEXT NOT NULL,
email TEXT
)
`)
await client.query(`
INSERT INTO test_users (name, email)
VALUES
('Alice', 'alice@example.com'),
('Bob', 'bob@example.com')
`)
// Delete
const deleteResult = await client.query(`
DELETE FROM test_users
WHERE name = 'Alice'
RETURNING *
`)
expect(deleteResult.rows.length).toBe(1)
expect(deleteResult.rows[0].name).toBe('Alice')
// Verify only Bob remains
const remaining = await client.query('SELECT * FROM test_users')
expect(remaining.rows.length).toBe(1)
expect(remaining.rows[0].name).toBe('Bob')
})
it('should execute operations in a transaction', async () => {
// Create table
await client.query(`
CREATE TABLE test_users (
id SERIAL PRIMARY KEY,
name TEXT NOT NULL,
balance INTEGER DEFAULT 0
)
`)
// Insert initial data
await client.query(`
INSERT INTO test_users (name, balance)
VALUES ('Alice', 100), ('Bob', 50)
`)
// Start a transaction and perform operations
await client.query('BEGIN')
try {
// Deduct from Alice
await client.query(`
UPDATE test_users
SET balance = balance - 30
WHERE name = 'Alice'
`)
// Add to Bob
await client.query(`
UPDATE test_users
SET balance = balance + 30
WHERE name = 'Bob'
`)
// Commit the transaction
await client.query('COMMIT')
} catch (error) {
// Rollback on error
await client.query('ROLLBACK')
throw error
}
// Verify both operations succeeded
const users = await client.query(
'SELECT name, balance FROM test_users ORDER BY name',
)
expect(users.rows.length).toBe(2)
expect(users.rows[0].name).toBe('Alice')
expect(users.rows[0].balance).toBe(70)
expect(users.rows[1].name).toBe('Bob')
expect(users.rows[1].balance).toBe(80)
})
it('should rollback a transaction on ROLLBACK', async () => {
// Create table
await client.query(`
CREATE TABLE test_users (
id SERIAL PRIMARY KEY,
name TEXT NOT NULL,
balance INTEGER DEFAULT 0
)
`)
// Insert initial data
await client.query(`
INSERT INTO test_users (name, balance)
VALUES ('Alice', 100), ('Bob', 50)
`)
// Get initial balance
const initialResult = await client.query(`
SELECT balance FROM test_users WHERE name = 'Alice'
`)
const initialBalance = initialResult.rows[0].balance
// Start a transaction
await client.query('BEGIN')
try {
// Deduct from Alice
await client.query(`
UPDATE test_users
SET balance = balance - 30
WHERE name = 'Alice'
`)
// Verify balance is changed within transaction
const midResult = await client.query(`
SELECT balance FROM test_users WHERE name = 'Alice'
`)
expect(midResult.rows[0].balance).toBe(70)
// Explicitly roll back (cancel) the transaction
await client.query('ROLLBACK')
} catch (error) {
await client.query('ROLLBACK')
throw error
}
// Verify balance wasn't changed after rollback
const finalResult = await client.query(`
SELECT balance FROM test_users WHERE name = 'Alice'
`)
expect(finalResult.rows[0].balance).toBe(initialBalance)
})
it('should rollback a transaction on error', async () => {
// Create table
await client.query(`
CREATE TABLE test_users (
id SERIAL PRIMARY KEY,
name TEXT NOT NULL,
balance INTEGER DEFAULT 0
)
`)
// Insert initial data
await client.query(`
INSERT INTO test_users (name, balance)
VALUES ('Alice', 100), ('Bob', 50)
`)
try {
// Start a transaction
await client.query('BEGIN')
// Deduct from Alice
await client.query(`
UPDATE test_users
SET balance = balance - 30
WHERE name = 'Alice'
`)
// This will trigger an error
await client.query(`
UPDATE test_users_nonexistent
SET balance = balance + 30
WHERE name = 'Bob'
`)
// Should never get here
await client.query('COMMIT')
} catch (error) {
// Expected to fail - rollback transaction
await client.query('ROLLBACK').catch(() => {
// If the client connection is in a bad state, we just ignore
// the rollback error
})
}
// Verify Alice's balance was not changed due to rollback
const users = await client.query(
'SELECT name, balance FROM test_users ORDER BY name',
)
expect(users.rows.length).toBe(2)
expect(users.rows[0].name).toBe('Alice')
expect(users.rows[0].balance).toBe(100) // Should remain 100 after rollback
})
it('should handle a syntax error', async () => {
// Expect syntax error
let errorMessage = ''
try {
await client.query('THIS IS NOT VALID SQL;')
} catch (error) {
errorMessage = (error as Error).message
}
expect(errorMessage).not.toBe('')
expect(errorMessage.toLowerCase()).toContain('syntax error')
})
it('should support cursor-based pagination', async () => {
// Create a test table with many rows
await client.query(`
CREATE TABLE test_users (
id SERIAL PRIMARY KEY,
name TEXT NOT NULL,
value INTEGER
)
`)
// Insert 100 rows using generate_series (server-side generation)
await client.query(`
INSERT INTO test_users (name, value)
SELECT
'User ' || i as name,
i as value
FROM generate_series(1, 100) as i
`)
// Use a cursor to read data in smaller chunks
const chunkSize = 10
let results: any[] = []
let page = 0
try {
// Begin transaction
await client.query('BEGIN')
// Declare a cursor
await client.query(
'DECLARE user_cursor CURSOR FOR SELECT * FROM test_users ORDER BY id',
)
let hasMoreData = true
while (hasMoreData) {
// Fetch a batch of results
const chunk = await client.query('FETCH 10 FROM user_cursor')
// If no rows returned, we're done
if (chunk.rows.length === 0) {
hasMoreData = false
continue
}
// Process this chunk
page++
// Add to our results array
results = [...results, ...chunk.rows]
// Verify each chunk has correct data (except possibly the last one)
if (chunk.rows.length === chunkSize) {
expect(chunk.rows.length).toBe(chunkSize)
expect(chunk.rows[0].id).toBe((page - 1) * chunkSize + 1)
}
}
// Close the cursor
await client.query('CLOSE user_cursor')
// Commit transaction
await client.query('COMMIT')
} catch (error) {
await client.query('ROLLBACK')
throw error
}
// Verify we got all 100 records
expect(results.length).toBe(100)
expect(results[0].name).toBe('User 1')
expect(results[99].name).toBe('User 100')
// Verify we received the expected number of pages
expect(page).toBe(Math.ceil(100 / chunkSize))
})
it('should support LISTEN/NOTIFY for pub/sub messaging', async () => {
// Set up listener for notifications
let receivedPayload = ''
const notificationReceived = new Promise<void>((resolve) => {
client.on('notification', (msg) => {
receivedPayload = msg.payload || ''
resolve()
})
})
// Start listening
await client.query('LISTEN test_channel')
// Small delay to ensure listener is set up
await new Promise((resolve) => setTimeout(resolve, 100))
// Send a notification
await client.query("NOTIFY test_channel, 'Hello from PGlite!'")
// Wait for the notification to be received with an appropriate timeout
const timeoutPromise = new Promise<void>((_, reject) => {
setTimeout(() => reject(new Error('Notification timeout')), 2000)
})
await Promise.race([notificationReceived, timeoutPromise]).catch(
(error) => {
console.error('Notification error:', error)
},
)
// Verify the notification was received with the correct payload
expect(receivedPayload).toBe('Hello from PGlite!')
})
})
describe('with extensions via CLI', () => {
const UNIX_SOCKET_DIR_PATH = `/tmp/${Date.now().toString()}`
fs.mkdirSync(UNIX_SOCKET_DIR_PATH)
const UNIX_SOCKET_PATH = `${UNIX_SOCKET_DIR_PATH}/.s.PGSQL.5432`
let serverProcess: ChildProcess | null = null
let client: typeof Client.prototype
beforeAll(async () => {
// Start the server with extensions via CLI using tsx for dev or node for dist
const serverScript = join(__dirname, '../src/scripts/server.ts')
serverProcess = spawn(
'npx',
[
'tsx',
serverScript,
'--path',
UNIX_SOCKET_PATH,
'--extensions',
'vector,pg_uuidv7,@electric-sql/pglite/pg_hashids:pg_hashids',
],
{
stdio: ['ignore', 'pipe', 'pipe'],
},
)
// Wait for server to be ready by checking for "listening" message
await new Promise<void>((resolve, reject) => {
const timeout = setTimeout(() => {
reject(new Error('Server startup timeout'))
}, 30000)
const onData = (data: Buffer) => {
const output = data.toString()
if (output.includes('listening')) {
clearTimeout(timeout)
resolve()
}
}
serverProcess!.stdout?.on('data', onData)
serverProcess!.stderr?.on('data', (data) => {
console.error('Server stderr:', data.toString())
})
serverProcess!.on('error', (err) => {
clearTimeout(timeout)
reject(err)
})
serverProcess!.on('exit', (code) => {
if (code !== 0 && code !== null) {
clearTimeout(timeout)
reject(new Error(`Server exited with code ${code}`))
}
})
})
console.log('Server with extensions started')
client = new Client({
host: UNIX_SOCKET_DIR_PATH,
database: 'postgres',
user: 'postgres',
password: 'postgres',
connectionTimeoutMillis: 10000,
})
await client.connect()
})
afterAll(async () => {
if (client) {
await client.end().catch(() => {})
}
if (serverProcess) {
serverProcess.kill('SIGTERM')
await new Promise<void>((resolve) => {
serverProcess!.on('exit', () => resolve())
setTimeout(resolve, 2000) // Force resolve after 2s
})
}
})
it('should load and use vector extension', async () => {
// Create the extension
await client.query('CREATE EXTENSION IF NOT EXISTS vector')
// Verify extension is loaded
const extCheck = await client.query(`
SELECT extname FROM pg_extension WHERE extname = 'vector'
`)
expect(extCheck.rows).toHaveLength(1)
expect(extCheck.rows[0].extname).toBe('vector')
// Create a table with vector column
await client.query(`
CREATE TABLE test_vectors (
id SERIAL PRIMARY KEY,
name TEXT,
vec vector(3)
)
`)
// Insert test data
await client.query(`
INSERT INTO test_vectors (name, vec) VALUES
('test1', '[1,2,3]'),
('test2', '[4,5,6]'),
('test3', '[7,8,9]')
`)
// Query with vector distance
const result = await client.query(`
SELECT name, vec, vec <-> '[3,1,2]' AS distance
FROM test_vectors
ORDER BY distance
`)
expect(result.rows).toHaveLength(3)
expect(result.rows[0].name).toBe('test1')
expect(result.rows[0].vec).toBe('[1,2,3]')
expect(parseFloat(result.rows[0].distance)).toBeCloseTo(2.449, 2)
})
it('should load and use pg_uuidv7 extension', async () => {
// Create the extension
await client.query('CREATE EXTENSION IF NOT EXISTS pg_uuidv7')
// Verify extension is loaded
const extCheck = await client.query(`
SELECT extname FROM pg_extension WHERE extname = 'pg_uuidv7'
`)
expect(extCheck.rows).toHaveLength(1)
expect(extCheck.rows[0].extname).toBe('pg_uuidv7')
// Generate a UUIDv7
const result = await client.query('SELECT uuid_generate_v7() as uuid')
expect(result.rows[0].uuid).toHaveLength(36)
// Test uuid_v7_to_timestamptz function
const tsResult = await client.query(`
SELECT uuid_v7_to_timestamptz('018570bb-4a7d-7c7e-8df4-6d47afd8c8fc') as ts
`)
const timestamp = new Date(tsResult.rows[0].ts)
expect(timestamp.toISOString()).toBe('2023-01-02T04:26:40.637Z')
})
it('should load and use pg_hashids extension from npm package path', async () => {
// Create the extension
await client.query('CREATE EXTENSION IF NOT EXISTS pg_hashids')
// Verify extension is loaded
const extCheck = await client.query(`
SELECT extname FROM pg_extension WHERE extname = 'pg_hashids'
`)
expect(extCheck.rows).toHaveLength(1)
expect(extCheck.rows[0].extname).toBe('pg_hashids')
// Test id_encode function
const result = await client.query(`
SELECT id_encode(1234567, 'salt', 10, 'abcdefghijABCDEFGHIJ1234567890') as hash
`)
expect(result.rows[0].hash).toBeTruthy()
expect(typeof result.rows[0].hash).toBe('string')
// Test id_decode function (round-trip)
const hash = result.rows[0].hash
const decodeResult = await client.query(`
SELECT id_decode('${hash}', 'salt', 10, 'abcdefghijABCDEFGHIJ1234567890') as id
`)
expect(decodeResult.rows[0].id[0]).toBe('1234567')
})
})
})

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_node_modules/@electric-sql/pglite-socket/tests/query-with-postgres-js.test.ts generated Normal file
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import {
describe,
it,
expect,
beforeAll,
afterAll,
beforeEach,
afterEach,
} from 'vitest'
import postgres from 'postgres'
import { PGlite } from '@electric-sql/pglite'
import { PGLiteSocketServer } from '../src'
import { spawn, ChildProcess } from 'node:child_process'
import { fileURLToPath } from 'node:url'
import { dirname, join } from 'node:path'
import fs from 'fs'
const __filename = fileURLToPath(import.meta.url)
const __dirname = dirname(__filename)
/**
* Debug configuration for testing
*
* To test against a real PostgreSQL server:
* - Set DEBUG_TESTS=true as an environment variable
* - Optionally set DEBUG_TESTS_REAL_SERVER with a connection URL (defaults to localhost)
*
* Example:
* DEBUG_TESTS=true DEBUG_TESTS_REAL_SERVER=postgres://user:pass@host:port/db npm vitest ./tests/query-with-postgres-js.test.ts
*/
const DEBUG_LOCAL = process.env.DEBUG_LOCAL === 'true'
const DEBUG_TESTS = process.env.DEBUG_TESTS === 'true'
const DEBUG_TESTS_REAL_SERVER =
process.env.DEBUG_TESTS_REAL_SERVER ||
'postgres://postgres:postgres@localhost:5432/postgres'
const TEST_PORT = 5434
describe(`PGLite Socket Server`, () => {
describe('with postgres.js client', () => {
let db: PGlite
let server: PGLiteSocketServer
let sql: ReturnType<typeof postgres>
let connectionConfig: any
beforeAll(async () => {
if (DEBUG_TESTS) {
console.log('TESTING WITH REAL POSTGRESQL SERVER')
console.log(`Connection URL: ${DEBUG_TESTS_REAL_SERVER}`)
} else {
console.log('TESTING WITH PGLITE SERVER')
// Create a PGlite instance
if (DEBUG_LOCAL) db = await PGlite.create({ debug: '1' })
else db = await PGlite.create()
// Wait for database to be ready
await db.waitReady
console.log('PGLite database ready')
// Create and start the server with explicit host
server = new PGLiteSocketServer({
db,
port: TEST_PORT,
host: '127.0.0.1',
inspect: DEBUG_TESTS || DEBUG_LOCAL,
})
// Add event listeners for debugging
server.addEventListener('error', (event) => {
console.error('Socket server error:', (event as CustomEvent).detail)
})
server.addEventListener('connection', (event) => {
console.log(
'Socket connection received:',
(event as CustomEvent).detail,
)
})
await server.start()
console.log(`PGLite Socket Server started on port ${TEST_PORT}`)
connectionConfig = {
host: '127.0.0.1',
port: TEST_PORT,
database: 'postgres',
username: 'postgres',
password: 'postgres',
idle_timeout: 5,
connect_timeout: 10,
max: 1,
}
}
})
afterAll(async () => {
if (!DEBUG_TESTS) {
// Stop server if running
if (server) {
await server.stop()
console.log('PGLite Socket Server stopped')
}
// Close database
if (db) {
await db.close()
console.log('PGLite database closed')
}
}
})
beforeEach(() => {
// Create a postgres client instance before each test
if (DEBUG_TESTS) {
// Direct connection to real PostgreSQL server using URL
sql = postgres(DEBUG_TESTS_REAL_SERVER, {
idle_timeout: 5,
connect_timeout: 10,
max: 1,
})
} else {
// Connection to PGLite Socket Server
sql = postgres(connectionConfig)
}
})
afterEach(async () => {
// Clean up any tables created in tests
try {
await sql`DROP TABLE IF EXISTS test_users`
} catch (e) {
console.error('Error cleaning up tables:', e)
}
// Disconnect the client after each test
if (sql) {
await sql.end()
}
})
if (!DEBUG_LOCAL) {
it('should execute a basic SELECT query', async () => {
const result = await sql`SELECT 1 as one`
expect(result[0].one).toBe(1)
})
it('should create a table', async () => {
await sql`
CREATE TABLE test_users (
id SERIAL PRIMARY KEY,
name TEXT NOT NULL,
email TEXT,
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
)
`
// Verify table exists by querying the schema
const tableCheck = await sql`
SELECT table_name
FROM information_schema.tables
WHERE table_schema = 'public' AND table_name = 'test_users'
`
expect(tableCheck.length).toBe(1)
expect(tableCheck[0].table_name).toBe('test_users')
})
it('should insert rows into a table', async () => {
// Create table
await sql`
CREATE TABLE test_users (
id SERIAL PRIMARY KEY,
name TEXT NOT NULL,
email TEXT
)
`
// Insert data
const insertResult = await sql`
INSERT INTO test_users (name, email)
VALUES
('Alice', 'alice@example.com'),
('Bob', 'bob@example.com')
RETURNING *
`
expect(insertResult.length).toBe(2)
expect(insertResult[0].name).toBe('Alice')
expect(insertResult[1].name).toBe('Bob')
// Verify data is there
const count = await sql`SELECT COUNT(*)::int as count FROM test_users`
expect(count[0].count).toBe(2)
})
it('should update rows in a table', async () => {
// Create and populate table
await sql`
CREATE TABLE test_users (
id SERIAL PRIMARY KEY,
name TEXT NOT NULL,
email TEXT
)
`
await sql`
INSERT INTO test_users (name, email)
VALUES ('Alice', 'alice@example.com')
`
// Update
const updateResult = await sql`
UPDATE test_users
SET email = 'alice.new@example.com'
WHERE name = 'Alice'
RETURNING *
`
expect(updateResult.length).toBe(1)
expect(updateResult[0].email).toBe('alice.new@example.com')
})
it('should delete rows from a table', async () => {
// Create and populate table
await sql`
CREATE TABLE test_users (
id SERIAL PRIMARY KEY,
name TEXT NOT NULL,
email TEXT
)
`
await sql`
INSERT INTO test_users (name, email)
VALUES
('Alice', 'alice@example.com'),
('Bob', 'bob@example.com')
`
// Delete
const deleteResult = await sql`
DELETE FROM test_users
WHERE name = 'Alice'
RETURNING *
`
expect(deleteResult.length).toBe(1)
expect(deleteResult[0].name).toBe('Alice')
// Verify only Bob remains
const remaining = await sql`SELECT * FROM test_users`
expect(remaining.length).toBe(1)
expect(remaining[0].name).toBe('Bob')
})
it('should execute operations in a transaction', async () => {
// Create table
await sql`
CREATE TABLE test_users (
id SERIAL PRIMARY KEY,
name TEXT NOT NULL,
balance INTEGER DEFAULT 0
)
`
// Insert initial data
await sql`
INSERT INTO test_users (name, balance)
VALUES ('Alice', 100), ('Bob', 50)
`
// Start a transaction and perform operations
await sql.begin(async (tx) => {
// Deduct from Alice
await tx`
UPDATE test_users
SET balance = balance - 30
WHERE name = 'Alice'
`
// Add to Bob
await tx`
UPDATE test_users
SET balance = balance + 30
WHERE name = 'Bob'
`
})
// Verify both operations succeeded
const users =
await sql`SELECT name, balance FROM test_users ORDER BY name`
expect(users.length).toBe(2)
expect(users[0].name).toBe('Alice')
expect(users[0].balance).toBe(70)
expect(users[1].name).toBe('Bob')
expect(users[1].balance).toBe(80)
})
it('should rollback a transaction on ROLLBACK', async () => {
// Create table
await sql`
CREATE TABLE test_users (
id SERIAL PRIMARY KEY,
name TEXT NOT NULL,
balance INTEGER DEFAULT 0
)
`
// Insert initial data
await sql`
INSERT INTO test_users (name, balance)
VALUES ('Alice', 100), ('Bob', 50)
`
// Get initial balance
const initialResult = await sql`
SELECT balance FROM test_users WHERE name = 'Alice'
`
const initialBalance = initialResult[0].balance
// Start a transaction
await sql
.begin(async (tx) => {
// Deduct from Alice
await tx`
UPDATE test_users
SET balance = balance - 30
WHERE name = 'Alice'
`
// Verify balance is changed within transaction
const midResult = await tx`
SELECT balance FROM test_users WHERE name = 'Alice'
`
expect(midResult[0].balance).toBe(70)
// Explicitly roll back (cancel) the transaction
throw new Error('Triggering rollback')
})
.catch(() => {
// Expected error to trigger rollback
console.log('Transaction was rolled back as expected')
})
// Verify balance wasn't changed after rollback
const finalResult = await sql`
SELECT balance FROM test_users WHERE name = 'Alice'
`
expect(finalResult[0].balance).toBe(initialBalance)
})
it('should rollback a transaction on error', async () => {
// Create table
await sql`
CREATE TABLE test_users (
id SERIAL PRIMARY KEY,
name TEXT NOT NULL,
balance INTEGER DEFAULT 0
)
`
// Insert initial data
await sql`
INSERT INTO test_users (name, balance)
VALUES ('Alice', 100), ('Bob', 50)
`
// Start a transaction that will fail
try {
await sql.begin(async (tx) => {
// Deduct from Alice
await tx`
UPDATE test_users
SET balance = balance - 30
WHERE name = 'Alice'
`
// This will trigger an error
await tx`
UPDATE test_users_nonexistent
SET balance = balance + 30
WHERE name = 'Bob'
`
})
} catch (error) {
// Expected to fail
}
// Verify Alice's balance was not changed due to rollback
const users =
await sql`SELECT name, balance FROM test_users ORDER BY name`
expect(users.length).toBe(2)
expect(users[0].name).toBe('Alice')
expect(users[0].balance).toBe(100) // Should remain 100 after rollback
})
it('should handle a syntax error', async () => {
// Expect syntax error
let errorMessage = ''
try {
await sql`THIS IS NOT VALID SQL;`
} catch (error) {
errorMessage = (error as Error).message
}
expect(errorMessage).not.toBe('')
expect(errorMessage.toLowerCase()).toContain('syntax error')
})
it('should support cursor-based pagination', async () => {
// Create a test table with many rows
await sql`
CREATE TABLE test_users (
id SERIAL PRIMARY KEY,
name TEXT NOT NULL,
value INTEGER
)
`
// Insert 100 rows using generate_series (server-side generation)
await sql`
INSERT INTO test_users (name, value)
SELECT
'User ' || i as name,
i as value
FROM generate_series(1, 100) as i
`
// Use a cursor to read data in smaller chunks
const chunkSize = 10
let results: any[] = []
let page = 0
// Use a transaction for cursor operations (cursors must be in transactions)
await sql.begin(async (tx) => {
// Declare a cursor
await tx`DECLARE user_cursor CURSOR FOR SELECT * FROM test_users ORDER BY id`
let hasMoreData = true
while (hasMoreData) {
// Fetch a batch of results
const chunk = await tx`FETCH 10 FROM user_cursor`
// If no rows returned, we're done
if (chunk.length === 0) {
hasMoreData = false
continue
}
// Process this chunk
page++
// Add to our results array
results = [...results, ...chunk]
// Verify each chunk has correct data (except possibly the last one)
if (chunk.length === chunkSize) {
expect(chunk.length).toBe(chunkSize)
expect(chunk[0].id).toBe((page - 1) * chunkSize + 1)
}
}
// Close the cursor
await tx`CLOSE user_cursor`
})
// Verify we got all 100 records
expect(results.length).toBe(100)
expect(results[0].name).toBe('User 1')
expect(results[99].name).toBe('User 100')
// Verify we received the expected number of pages
expect(page).toBe(Math.ceil(100 / chunkSize))
})
} else {
it('should support LISTEN/NOTIFY for pub/sub messaging', async () => {
// Create a promise that will resolve when the notification is received
let receivedPayload = ''
const notificationPromise = new Promise<void>((resolve) => {
// Set up listener for the 'test_channel' notification
sql.listen('test_channel', (data) => {
receivedPayload = data
resolve()
})
})
// Small delay to ensure listener is set up
// await new Promise((resolve) => setTimeout(resolve, 100))
// Send a notification on the same connection
await sql`NOTIFY test_channel, 'Hello from PGlite!'`
// Wait for the notification to be received
await notificationPromise
// Verify the notification was received with the correct payload
expect(receivedPayload).toBe('Hello from PGlite!')
})
}
})
describe('with extensions via CLI', () => {
const UNIX_SOCKET_DIR_PATH = `/tmp/${Date.now().toString()}`
fs.mkdirSync(UNIX_SOCKET_DIR_PATH)
const UNIX_SOCKET_PATH = `${UNIX_SOCKET_DIR_PATH}/.s.PGSQL.5432`
let serverProcess: ChildProcess | null = null
let sql: ReturnType<typeof postgres>
beforeAll(async () => {
// Start the server with extensions via CLI using tsx for dev or node for dist
const serverScript = join(__dirname, '../src/scripts/server.ts')
serverProcess = spawn(
'npx',
[
'tsx',
serverScript,
'--path',
UNIX_SOCKET_PATH,
'--extensions',
'vector,pg_uuidv7,@electric-sql/pglite/pg_hashids:pg_hashids',
],
{
stdio: ['ignore', 'pipe', 'pipe'],
},
)
// Wait for server to be ready by checking for "listening" message
await new Promise<void>((resolve, reject) => {
const timeout = setTimeout(() => {
reject(new Error('Server startup timeout'))
}, 30000)
const onData = (data: Buffer) => {
const output = data.toString()
if (output.includes('listening')) {
clearTimeout(timeout)
resolve()
}
}
serverProcess!.stdout?.on('data', onData)
serverProcess!.stderr?.on('data', (data) => {
console.error('Server stderr:', data.toString())
})
serverProcess!.on('error', (err) => {
clearTimeout(timeout)
reject(err)
})
serverProcess!.on('exit', (code) => {
if (code !== 0 && code !== null) {
clearTimeout(timeout)
reject(new Error(`Server exited with code ${code}`))
}
})
})
console.log('Server with extensions started')
sql = postgres({
path: UNIX_SOCKET_PATH,
database: 'postgres',
username: 'postgres',
password: 'postgres',
idle_timeout: 5,
connect_timeout: 10,
max: 1,
})
})
afterAll(async () => {
if (sql) {
await sql.end().catch(() => {})
}
if (serverProcess) {
serverProcess.kill('SIGTERM')
await new Promise<void>((resolve) => {
serverProcess!.on('exit', () => resolve())
setTimeout(resolve, 2000) // Force resolve after 2s
})
}
})
it('should load and use vector extension', async () => {
// Create the extension
await sql`CREATE EXTENSION IF NOT EXISTS vector`
// Verify extension is loaded
const extCheck = await sql`
SELECT extname FROM pg_extension WHERE extname = 'vector'
`
expect(extCheck).toHaveLength(1)
expect(extCheck[0].extname).toBe('vector')
// Create a table with vector column
await sql`
CREATE TABLE test_vectors (
id SERIAL PRIMARY KEY,
name TEXT,
vec vector(3)
)
`
// Insert test data
await sql`
INSERT INTO test_vectors (name, vec) VALUES
('test1', '[1,2,3]'),
('test2', '[4,5,6]'),
('test3', '[7,8,9]')
`
// Query with vector distance
const result = await sql`
SELECT name, vec, vec <-> '[3,1,2]' AS distance
FROM test_vectors
ORDER BY distance
`
expect(result).toHaveLength(3)
expect(result[0].name).toBe('test1')
expect(result[0].vec).toBe('[1,2,3]')
expect(parseFloat(result[0].distance)).toBeCloseTo(2.449, 2)
})
it('should load and use pg_uuidv7 extension', async () => {
// Create the extension
await sql`CREATE EXTENSION IF NOT EXISTS pg_uuidv7`
// Verify extension is loaded
const extCheck = await sql`
SELECT extname FROM pg_extension WHERE extname = 'pg_uuidv7'
`
expect(extCheck).toHaveLength(1)
expect(extCheck[0].extname).toBe('pg_uuidv7')
// Generate a UUIDv7
const result = await sql`SELECT uuid_generate_v7() as uuid`
expect(result[0].uuid).toHaveLength(36)
// Test uuid_v7_to_timestamptz function
const tsResult = await sql`
SELECT uuid_v7_to_timestamptz('018570bb-4a7d-7c7e-8df4-6d47afd8c8fc') as ts
`
const timestamp = new Date(tsResult[0].ts)
expect(timestamp.toISOString()).toBe('2023-01-02T04:26:40.637Z')
})
it('should load and use pg_hashids extension from npm package path', async () => {
// Create the extension
await sql`CREATE EXTENSION IF NOT EXISTS pg_hashids`
// Verify extension is loaded
const extCheck = await sql`
SELECT extname FROM pg_extension WHERE extname = 'pg_hashids'
`
expect(extCheck).toHaveLength(1)
expect(extCheck[0].extname).toBe('pg_hashids')
// Test id_encode function
const result = await sql`
SELECT id_encode(1234567, 'salt', 10, 'abcdefghijABCDEFGHIJ1234567890') as hash
`
expect(result[0].hash).toBeTruthy()
expect(typeof result[0].hash).toBe('string')
// Test id_decode function (round-trip)
const hash = result[0].hash
const decodeResult = await sql`
SELECT id_decode(${hash}, 'salt', 10, 'abcdefghijABCDEFGHIJ1234567890') as id
`
expect(decodeResult[0].id[0]).toBe('1234567')
})
})
})

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_node_modules/@electric-sql/pglite-socket/tests/server.test.ts generated Normal file
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import { describe, it, expect, afterEach } from 'vitest'
import { spawn, ChildProcess } from 'node:child_process'
import { createConnection } from 'net'
import path from 'node:path'
import { fileURLToPath } from 'node:url'
const __dirname = path.dirname(fileURLToPath(import.meta.url))
const serverScript = path.resolve(__dirname, '../src/scripts/server.ts')
// Helper to wait for a port to be available
async function waitForPort(port: number, timeout = 15000): Promise<boolean> {
const start = Date.now()
while (Date.now() - start < timeout) {
try {
const socket = createConnection({ port, host: '127.0.0.1' })
await new Promise<void>((resolve, reject) => {
socket.on('connect', () => {
socket.end()
resolve()
})
socket.on('error', reject)
})
return true
} catch {
await new Promise((resolve) => setTimeout(resolve, 100))
}
}
return false
}
describe('Server Script Tests', () => {
const TEST_PORT_BASE = 15500
let currentTestPort = TEST_PORT_BASE
// Get a unique port for each test
function getTestPort(): number {
return ++currentTestPort
}
describe('Help and Basic Functionality', () => {
it('should show help when --help flag is used', async () => {
const serverProcess = spawn('tsx', [serverScript, '--help'], {
stdio: ['pipe', 'pipe', 'pipe'],
})
let output = ''
serverProcess.stdout?.on('data', (data) => {
output += data.toString()
})
serverProcess.stderr?.on('data', (data) => {
console.error(data.toString())
})
await new Promise<void>((resolve) => {
serverProcess.on('exit', (code) => {
expect(code).toBe(0)
expect(output).toContain('PGlite Socket Server')
expect(output).toContain('Usage:')
expect(output).toContain('Options:')
expect(output).toContain('--db')
expect(output).toContain('--port')
expect(output).toContain('--host')
resolve()
})
})
}, 10000)
it('should accept and use debug level parameter', async () => {
const testPort = getTestPort()
const serverProcess = spawn(
'tsx',
[serverScript, '--port', testPort.toString(), '--debug', '2'],
{
stdio: ['pipe', 'pipe', 'pipe'],
},
)
let output = ''
serverProcess.stdout?.on('data', (data) => {
output += data.toString()
})
serverProcess.stderr?.on('data', (data) => {
console.error(data.toString())
})
// Wait for server to start
await waitForPort(testPort)
// Kill the server
serverProcess.kill('SIGTERM')
await new Promise<void>((resolve) => {
serverProcess.on('exit', () => {
expect(output).toContain('Debug level: 2')
resolve()
})
})
}, 10000)
})
describe('Server Startup and Connectivity', () => {
let serverProcess: ChildProcess | null = null
afterEach(async () => {
if (serverProcess) {
serverProcess.kill('SIGTERM')
await new Promise<void>((resolve) => {
if (serverProcess) {
serverProcess.on('exit', () => resolve())
} else {
resolve()
}
})
serverProcess = null
}
})
it('should start server on TCP port and accept connections', async () => {
const testPort = getTestPort()
serverProcess = spawn(
'tsx',
[serverScript, '--port', testPort.toString()],
{
stdio: ['pipe', 'pipe', 'pipe'],
},
)
let output = ''
serverProcess.stdout?.on('data', (data) => {
output += data.toString()
})
serverProcess.stderr?.on('data', (data) => {
console.error(data.toString())
})
// Wait for server to be ready
const isReady = await waitForPort(testPort)
expect(isReady).toBe(true)
// Check that we can connect
const socket = createConnection({ port: testPort, host: '127.0.0.1' })
await new Promise<void>((resolve, reject) => {
socket.on('connect', resolve)
socket.on('error', reject)
setTimeout(() => reject(new Error('Connection timeout')), 3000)
})
socket.end()
expect(output).toContain('PGlite database initialized')
expect(output).toContain(`"port":${testPort}`)
}, 10000)
it('should work with memory database', async () => {
const testPort = getTestPort()
serverProcess = spawn(
'tsx',
[serverScript, '--port', testPort.toString(), '--db', 'memory://'],
{
stdio: ['pipe', 'pipe', 'pipe'],
},
)
let output = ''
serverProcess.stdout?.on('data', (data) => {
output += data.toString()
})
serverProcess.stderr?.on('data', (data) => {
console.error(data.toString())
})
const isReady = await waitForPort(testPort)
expect(isReady).toBe(true)
expect(output).toContain('Initializing PGLite with database: memory://')
}, 10000)
})
describe('Configuration Options', () => {
let serverProcess: ChildProcess | null = null
afterEach(async () => {
if (serverProcess) {
serverProcess.kill('SIGTERM')
await new Promise<void>((resolve) => {
if (serverProcess) {
serverProcess.on('exit', () => resolve())
} else {
resolve()
}
})
serverProcess = null
}
})
it('should handle different hosts', async () => {
const testPort = getTestPort()
serverProcess = spawn(
'tsx',
[serverScript, '--port', testPort.toString(), '--host', '0.0.0.0'],
{
stdio: ['pipe', 'pipe', 'pipe'],
},
)
let output = ''
serverProcess.stdout?.on('data', (data) => {
output += data.toString()
})
serverProcess.stderr?.on('data', (data) => {
console.error(data.toString())
})
const isReady = await waitForPort(testPort)
expect(isReady).toBe(true)
serverProcess.kill()
await new Promise<void>((resolve) => {
serverProcess.on('exit', () => {
expect(output).toContain(`"host":"0.0.0.0"`)
serverProcess = null
resolve()
})
})
}, 10000)
})
})

10
_node_modules/@electric-sql/pglite-socket/tsconfig.json generated Normal file
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@@ -0,0 +1,10 @@
{
"extends": "../../tsconfig.json",
"compilerOptions": {
"types": [
"@types/emscripten",
"node"
]
},
"include": ["src", "examples", "tsup.config.ts", "vitest.config.ts"]
}

20
_node_modules/@electric-sql/pglite-socket/tsup.config.ts generated Normal file
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import { defineConfig } from 'tsup'
const entryPoints = ['src/index.ts', 'src/scripts/server.ts']
const minify = process.env.DEBUG === 'true' ? false : true
export default defineConfig([
{
entry: entryPoints,
sourcemap: true,
dts: {
entry: entryPoints,
resolve: true,
},
clean: true,
minify: minify,
shims: true,
format: ['esm', 'cjs'],
},
])

16
_node_modules/@electric-sql/pglite-socket/vitest.config.ts generated Normal file
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import { defineConfig } from 'vitest/config'
export default defineConfig({
test: {
name: 'integration tests',
globals: true,
typecheck: { enabled: true },
environment: 'node',
testTimeout: 30000,
watch: false,
dir: './tests',
maxWorkers: 1,
fileParallelism: false,
maxConcurrency: 1 // because we are running a TCP server on a port
},
})

165
_node_modules/@electric-sql/pglite-tools/CHANGELOG.md generated Normal file
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@@ -0,0 +1,165 @@
# @electric-sql/pglite-tools
## 0.2.20
### Patch Changes
- Updated dependencies [45bff97]
- Updated dependencies [5ec474f]
- @electric-sql/pglite@0.3.15
## 0.2.19
### Patch Changes
- Updated dependencies [8785034]
- Updated dependencies [90cfee8]
- @electric-sql/pglite@0.3.14
## 0.2.18
### Patch Changes
- ad3d0d8: Updated pg_dump to use callback data exchange; built pg_dump with emscripten
- Updated dependencies [ad3d0d8]
- @electric-sql/pglite@0.3.13
## 0.2.17
### Patch Changes
- Updated dependencies [ce0e74e]
- @electric-sql/pglite@0.3.12
## 0.2.16
### Patch Changes
- Updated dependencies [9a104b9]
- @electric-sql/pglite@0.3.11
## 0.2.15
### Patch Changes
- Updated dependencies [ad765ed]
- @electric-sql/pglite@0.3.10
## 0.2.14
### Patch Changes
- e40ccad: Upgrade emsdk
- Updated dependencies [e40ccad]
- @electric-sql/pglite@0.3.9
## 0.2.13
### Patch Changes
- be677b4: fix pg_dump on Windows systems
When calling **pg_dump** on Windows system the function fails with an error as the one bellow.
❗ Notice the double drive letter
`Error: ENOENT: no such file or directory, open 'E:\C:\Users\<USERNAME>\AppData\Local\npm-cache\_npx\ba4f1959e38407b5\node_modules\@electric-sql\pglite-tools\dist\pg_dump.wasm'`
The problem is in execPgDump function at line
`const blob = await fs.readFile(bin.toString().slice(7))`
I think the intention here was to remove `file://` from the begging of the path. However this is not necesarry readFile can handle URL objects.
Moreover this will fail on Windows becase the slice creates a path like '/C:/<USERNAME>...' and the readFile function will add the extra drive letter
- Updated dependencies [f12a582]
- Updated dependencies [bd263aa]
- @electric-sql/pglite@0.3.8
## 0.2.12
### Patch Changes
- Updated dependencies [0936962]
- @electric-sql/pglite@0.3.7
## 0.2.11
### Patch Changes
- Updated dependencies [6898469]
- Updated dependencies [469be18]
- Updated dependencies [64e33c7]
- @electric-sql/pglite@0.3.6
## 0.2.10
### Patch Changes
- 8172b72: new pg_dump wasm blob
- Updated dependencies [6653899]
- Updated dependencies [5f007fc]
- @electric-sql/pglite@0.3.5
## 0.2.9
### Patch Changes
- 38a55d0: fix cjs/esm misconfigurations
- Updated dependencies [1fcaa3e]
- Updated dependencies [38a55d0]
- Updated dependencies [aac7003]
- Updated dependencies [8ca254d]
- @electric-sql/pglite@0.3.4
## 0.2.8
### Patch Changes
- Updated dependencies [ea2c7c7]
- @electric-sql/pglite@0.3.3
## 0.2.7
### Patch Changes
- Updated dependencies [e2c654b]
- @electric-sql/pglite@0.3.2
## 0.2.6
### Patch Changes
- Updated dependencies [713364e]
- @electric-sql/pglite@0.3.1
## 0.2.5
### Patch Changes
- 317fd36: Specify a peer dependency range on @electric-sql/pglite
- Updated dependencies [97e52f7]
- Updated dependencies [4356024]
- Updated dependencies [0033bc7]
- @electric-sql/pglite@0.3.0
## 0.2.4
### Patch Changes
- bbfa9f1: Restore SEARCH_PATH after pg_dump
## 0.2.3
### Patch Changes
- 8545760: pg_dump error messages set on the thrown Error
- d26e658: Run a DEALLOCATE ALL after each pg_dump to cleanup the prepared statements.
## 0.2.2
### Patch Changes
- 17c9875: add node imports to the package.json browser excludes
## 0.2.1
### Patch Changes
- 6547374: Alpha version of pg_dump support in the browser and Node using a WASM build of pg_dump

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# pglite-tools
A selection of tools for working with [PGlite](https://github.com/electric-sql/pglite) databases, including pg_dump.
Install with:
```bash
npm install @electric-sql/pglite-tools
```
## `pgDump`
pg_dump is a tool for dumping a PGlite database to a SQL file, this is a WASM build of pg_dump that can be used in a browser or other JavaScript environments. You can read more about pg_dump [in the Postgres docs](https://www.postgresql.org/docs/current/app-pgdump.html).
Note: pg_dump will execute `DEALLOCATE ALL;` after each dump. Since this is running on the same (single) connection, any prepared statements that you have made before running pg_dump will be affected.
### Options
- `pg`: A PGlite instance.
- `args`: An array of arguments to pass to pg_dump - see [pg_dump docs](https://www.postgresql.org/docs/current/app-pgdump.html) for more details.
- `fileName`: The name of the file to write the dump to, defaults to `dump.sql`.
There are a number of arguments that are automatically added to the end of the command, these are:
- `--inserts` - use inserts format for the output, this ensures that the dump can be restored by simply passing the output to `pg.exec()`.
- `-j 1` - concurrency level, set to 1 as multithreading isn't supported.
- `-f /tmp/out.sql` - the output file is always written to `/tmp/out.sql` in the virtual file system.
- `-U postgres` - use the postgres user is hard coded.
### Returns
- A `File` object containing the dump.
### Caveats
- After restoring a dump, you might want to set the same search path as the initial db.
### Example
```typescript
import { PGlite } from '@electric-sql/pglite'
import { pgDump } from '@electric-sql/pglite-tools/pg_dump'
const pg = await PGlite.create()
// Create a table and insert some data
await pg.exec(`
CREATE TABLE test (
id SERIAL PRIMARY KEY,
name TEXT
);
`)
await pg.exec(`
INSERT INTO test (name) VALUES ('test');
`)
// store the current search path so it can be used in the restored db
const initialSearchPath = (await pg1.query<{ search_path: string }>('SHOW SEARCH_PATH;')).rows[0].search_path
// Dump the database to a file
const dump = await pgDump({ pg })
// Get the dump text - used for restore
const dumpContent = await dump.text()
// Create a new database
const restoredPG = await PGlite.create()
// ... and restore it using the dump
await restoredPG.exec(dumpContent)
// optional - after importing, set search path back to the initial one
await restoredPG.exec(`SET search_path TO ${initialSearchPath};`);
```

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export { pgDump } from './pg_dump.cjs';
import '@electric-sql/pglite';

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export { pgDump } from './pg_dump.js';
import '@electric-sql/pglite';

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import{a as o}from"./chunk-WAOUATYI.js";export{o as pgDump};
//# sourceMappingURL=index.js.map

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{"version":3,"sources":[],"sourcesContent":[],"mappings":"","names":[]}

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import { PGlite } from '@electric-sql/pglite';
interface PgDumpOptions {
pg: PGlite;
args?: string[];
fileName?: string;
verbose?: boolean;
}
/**
* Execute pg_dump
*/
declare function pgDump({ pg, args, fileName, }: PgDumpOptions): Promise<File>;
export { pgDump };

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import { PGlite } from '@electric-sql/pglite';
interface PgDumpOptions {
pg: PGlite;
args?: string[];
fileName?: string;
verbose?: boolean;
}
/**
* Execute pg_dump
*/
declare function pgDump({ pg, args, fileName, }: PgDumpOptions): Promise<File>;
export { pgDump };

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import{a}from"./chunk-WAOUATYI.js";export{a as pgDump};
//# sourceMappingURL=pg_dump.js.map

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{"version":3,"sources":[],"sourcesContent":[],"mappings":"","names":[]}

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import globals from 'globals'
import rootConfig from '../../eslint.config.js'
export default [
...rootConfig,
{
ignores: ['release/**/*', 'examples/**/*', 'dist/**/*'],
},
{
languageOptions: {
globals: {
...globals.browser,
...globals.node,
},
},
rules: {
...rootConfig.rules,
'@typescript-eslint/no-explicit-any': 'off',
},
},
{
files: ['tests/targets/deno/**/*.js'],
languageOptions: {
globals: {
Deno: false,
},
},
},
]

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{
"name": "@electric-sql/pglite-tools",
"version": "0.2.20",
"description": "Tools for working with PGlite databases",
"author": "Electric DB Limited",
"homepage": "https://pglite.dev",
"license": "Apache-2.0",
"repository": {
"type": "git",
"url": "git+https://github.com/electric-sql/pglite",
"directory": "packages/pglite-tools"
},
"keywords": [
"postgres",
"sql",
"database",
"wasm",
"pglite",
"pg_dump",
"pg_restore"
],
"private": false,
"publishConfig": {
"access": "public"
},
"type": "module",
"main": "./dist/index.cjs",
"module": "./dist/index.js",
"types": "./dist/index.d.ts",
"exports": {
".": {
"import": {
"types": "./dist/index.d.ts",
"default": "./dist/index.js"
},
"require": {
"types": "./dist/index.d.cts",
"default": "./dist/index.cjs"
}
},
"./pg_dump": {
"import": {
"types": "./dist/pg_dump.d.ts",
"default": "./dist/pg_dump.js"
},
"require": {
"types": "./dist/pg_dump.d.cts",
"default": "./dist/pg_dump.cjs"
}
}
},
"browser": {
"fs": false,
"fs/promises": false
},
"devDependencies": {
"@arethetypeswrong/cli": "^0.18.1",
"@types/emscripten": "^1.41.1",
"@types/node": "^20.16.11",
"tsx": "^4.19.2",
"vitest": "^1.3.1",
"@electric-sql/pglite": "0.3.15"
},
"peerDependencies": {
"@electric-sql/pglite": "0.3.15"
},
"scripts": {
"build": "tsup",
"check:exports": "attw . --pack --profile node16",
"lint": "eslint ./src ./tests --report-unused-disable-directives --max-warnings 0",
"format": "prettier --write ./src ./tests",
"typecheck": "tsc",
"stylecheck": "pnpm lint && prettier --check ./src ./tests",
"test": "vitest"
}
}

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export * from './pg_dump'

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import PgDumpModFactory from '../release/pg_dump'
type IDBFS = Emscripten.FileSystemType & {
quit: () => void
dbs: Record<string, IDBDatabase>
}
export type FS = typeof FS & {
filesystems: {
MEMFS: Emscripten.FileSystemType
NODEFS: Emscripten.FileSystemType
IDBFS: IDBFS
}
quit: () => void
}
export interface PgDumpMod
extends Omit<EmscriptenModule, 'preInit' | 'preRun' | 'postRun'> {
preInit: Array<{ (mod: PgDumpMod): void }>
preRun: Array<{ (mod: PgDumpMod): void }>
postRun: Array<{ (mod: PgDumpMod): void }>
FS: FS
WASM_PREFIX: string
INITIAL_MEMORY: number
_set_read_write_cbs: (read_cb: number, write_cb: number) => void
addFunction: (
cb: (ptr: any, length: number) => void,
signature: string,
) => number
removeFunction: (f: number) => void
_main: (args: string[]) => number
onExit: (status: number) => void
print: (test: string) => void
printErr: (text: string) => void
}
type PgDumpFactory<T extends PgDumpMod = PgDumpMod> = (
moduleOverrides?: Partial<T>,
) => Promise<T>
export default PgDumpModFactory as PgDumpFactory<PgDumpMod>

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import { PGlite } from '@electric-sql/pglite'
import PgDumpModFactory, { PgDumpMod } from './pgDumpModFactory'
const dumpFilePath = '/tmp/out.sql'
/**
* Creates a new Uint8Array based on two different ArrayBuffers
*
* @private
* @param {ArrayBuffers} buffer1 The first buffer.
* @param {ArrayBuffers} buffer2 The second buffer.
* @return {ArrayBuffers} The new ArrayBuffer created out of the two.
*/
function concat(buffer1: ArrayBuffer, buffer2: ArrayBuffer) {
const tmp = new Uint8Array(buffer1.byteLength + buffer2.byteLength)
tmp.set(new Uint8Array(buffer1), 0)
tmp.set(new Uint8Array(buffer2), buffer1.byteLength)
return tmp
}
interface ExecResult {
exitCode: number
fileContents: string
stderr: string
stdout: string
}
/**
* Inner function to execute pg_dump
*/
async function execPgDump({
pg,
args,
}: {
pg: PGlite
args: string[]
}): Promise<ExecResult> {
let pgdump_write, pgdump_read
let exitStatus = 0
let stderrOutput: string = ''
let stdoutOutput: string = ''
const emscriptenOpts: Partial<PgDumpMod> = {
arguments: args,
noExitRuntime: false,
print: (text) => {
stdoutOutput += text
},
printErr: (text) => {
stderrOutput += text
},
onExit: (status: number) => {
exitStatus = status
},
preRun: [
(mod: PgDumpMod) => {
mod.onRuntimeInitialized = () => {
let bufferedBytes: Uint8Array = new Uint8Array()
pgdump_write = mod.addFunction((ptr: any, length: number) => {
let bytes
try {
bytes = mod.HEAPU8.subarray(ptr, ptr + length)
} catch (e: any) {
console.error('error', e)
throw e
}
const currentResponse = pg.execProtocolRawSync(bytes)
bufferedBytes = concat(bufferedBytes, currentResponse)
return length
}, 'iii')
pgdump_read = mod.addFunction((ptr: any, max_length: number) => {
let length = bufferedBytes.length
if (length > max_length) {
length = max_length
}
try {
mod.HEAP8.set(bufferedBytes.subarray(0, length), ptr)
} catch (e) {
console.error(e)
}
bufferedBytes = bufferedBytes.subarray(length, bufferedBytes.length)
return length
}, 'iii')
mod._set_read_write_cbs(pgdump_read, pgdump_write)
// default $HOME in emscripten is /home/web_user
mod.FS.chmod('/home/web_user/.pgpass', 0o0600) // https://www.postgresql.org/docs/current/libpq-pgpass.html
}
},
],
}
const mod = await PgDumpModFactory(emscriptenOpts)
let fileContents = ''
if (!exitStatus) {
fileContents = mod.FS.readFile(dumpFilePath, { encoding: 'utf8' })
}
return {
exitCode: exitStatus,
fileContents,
stderr: stderrOutput,
stdout: stdoutOutput,
}
}
interface PgDumpOptions {
pg: PGlite
args?: string[]
fileName?: string
verbose?: boolean
}
/**
* Execute pg_dump
*/
export async function pgDump({
pg,
args,
fileName = 'dump.sql',
}: PgDumpOptions) {
const getSearchPath = await pg.query<{ search_path: string }>(
'SHOW SEARCH_PATH;',
)
const search_path = getSearchPath.rows[0].search_path
const baseArgs = [
'-U',
'postgres',
'--inserts',
'-j',
'1',
'-f',
dumpFilePath,
'postgres',
]
const execResult = await execPgDump({
pg,
args: [...(args ?? []), ...baseArgs],
})
pg.exec(`DEALLOCATE ALL; SET SEARCH_PATH = ${search_path}`)
if (execResult.exitCode !== 0) {
throw new Error(
`pg_dump failed with exit code ${execResult.exitCode}. \nError message: ${execResult.stderr}`,
)
}
const file = new File([execResult.fileContents], fileName, {
type: 'text/plain',
})
return file
}

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import { describe, it, expect } from 'vitest'
import { PGlite } from '@electric-sql/pglite'
import { pgDump } from '../dist/pg_dump.js'
import * as fs from 'fs/promises'
describe('pgDump', () => {
it('should dump an empty database', async () => {
const pg = await PGlite.create()
const dump = await pgDump({ pg })
expect(dump).toBeInstanceOf(File)
expect(dump.name).toBe('dump.sql')
const content = await dump.text()
expect(content).toContain('PostgreSQL database dump')
})
it('should dump an empty database multiple times', async () => {
const pg = await PGlite.create()
for (let i = 0; i < 5; i++) {
const fileName = `dump_${i}.sql`
const dump = await pgDump({ pg, fileName })
expect(dump).toBeInstanceOf(File)
expect(dump.name).toBe(fileName)
const content = await dump.text()
expect(content).toContain('PostgreSQL database dump')
}
})
it('should dump a database with tables and data', async () => {
const pg = await PGlite.create()
// Create test tables and insert data
await pg.exec(`
CREATE TABLE test1 (
id SERIAL PRIMARY KEY,
name TEXT
);
INSERT INTO test1 (name) VALUES ('test1-row1');
CREATE TABLE test2 (
id SERIAL PRIMARY KEY,
value INTEGER
);
INSERT INTO test2 (value) VALUES (42);
`)
const dump = await pgDump({ pg })
const content = await dump.text()
// Check for table creation
expect(content).toContain('CREATE TABLE public.test1')
expect(content).toContain('CREATE TABLE public.test2')
// Check for data inserts
expect(content).toContain('INSERT INTO public.test1')
expect(content).toContain("'test1-row1'")
expect(content).toContain('INSERT INTO public.test2')
expect(content).toContain('42')
})
it('should respect custom filename', async () => {
const pg = await PGlite.create()
const dump = await pgDump({ pg, fileName: 'custom.sql' })
expect(dump.name).toBe('custom.sql')
})
it('should handle custom pg_dump arguments', async () => {
const pg = await PGlite.create()
await pg.exec(`
CREATE TABLE test (id SERIAL PRIMARY KEY, name TEXT);
INSERT INTO test (name) VALUES ('row1');
`)
// Use --schema-only to exclude data
const dump = await pgDump({ pg, args: ['--schema-only'] })
const content = await dump.text()
expect(content).toContain('CREATE TABLE public.test')
expect(content).not.toContain('INSERT INTO public.test')
})
it('should be able to restore dumped database', async () => {
const pg1 = await PGlite.create()
// Create original database
await pg1.exec(`
CREATE TABLE test (id SERIAL PRIMARY KEY, name TEXT);
INSERT INTO test (name) VALUES ('row1'), ('row2');
`)
const initialSearchPath = (
await pg1.query<{ search_path: string }>('SHOW SEARCH_PATH;')
).rows[0].search_path
// Dump database
const dump = await pgDump({ pg: pg1 })
const dumpContent = await dump.text()
// Create new database and restore
const pg2 = await PGlite.create()
await pg2.exec(dumpContent)
// after importing, set search path back to the initial one
await pg2.exec(`SET search_path TO ${initialSearchPath};`)
// Verify data
const result = await pg2.query<{ name: string }>(
'SELECT * FROM test ORDER BY id',
)
expect(result.rows).toHaveLength(2)
expect(result.rows[0].name).toBe('row1')
expect(result.rows[1].name).toBe('row2')
})
it('pg_dump should not change SEARCH_PATH', async () => {
const pg = await PGlite.create()
await pg.exec(`SET SEARCH_PATH = amigo;`)
const initialSearchPath = await pg.query('SHOW SEARCH_PATH;')
const dump = await pgDump({ pg })
await dump.text()
const finalSearchPath = await pg.query('SHOW SEARCH_PATH;')
expect(initialSearchPath).toEqual(finalSearchPath)
})
it('specify datadir: should dump a database with tables and data', async () => {
const dataDir = '/tmp/pg_dump_pglite_data_dir'
await fs.rm(dataDir, { force: true, recursive: true })
const pg = await PGlite.create({
dataDir: dataDir,
})
// Create test tables and insert data
await pg.exec(`
CREATE TABLE test1 (
id SERIAL PRIMARY KEY,
name TEXT
);
INSERT INTO test1 (name) VALUES ('test1-row1');
CREATE TABLE test2 (
id SERIAL PRIMARY KEY,
value INTEGER
);
INSERT INTO test2 (value) VALUES (42);
`)
const dump = await pgDump({ pg })
const content = await dump.text()
// Check for table creation
expect(content).toContain('CREATE TABLE public.test1')
expect(content).toContain('CREATE TABLE public.test2')
// Check for data inserts
expect(content).toContain('INSERT INTO public.test1')
expect(content).toContain("'test1-row1'")
expect(content).toContain('INSERT INTO public.test2')
expect(content).toContain('42')
})
it('param --quote-all-identifiers should work', async () => {
const pg = await PGlite.create()
// Create test tables and insert data
await pg.exec(`
CREATE TABLE test1 (
id SERIAL PRIMARY KEY,
name TEXT
);
INSERT INTO test1 (name) VALUES ('test1-row1');
CREATE TABLE test2 (
id SERIAL PRIMARY KEY,
value INTEGER
);
INSERT INTO test2 (value) VALUES (42);
`)
const dump = await pgDump({ pg, args: ['--quote-all-identifiers'] })
const content = await dump.text()
// Check for table creation
expect(content).toContain('CREATE TABLE "public"."test1"')
expect(content).toContain('CREATE TABLE "public"."test2"')
// Check for data inserts
expect(content).toContain('INSERT INTO "public"."test1"')
expect(content).toContain("'test1-row1'")
expect(content).toContain('INSERT INTO "public"."test2"')
expect(content).toContain('42')
})
})

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import { beforeAll } from 'vitest'
import { execSync } from 'child_process'
import { existsSync } from 'fs'
import { join } from 'path'
beforeAll(() => {
// Check if we need to build
const distPath = join(__dirname, '../dist')
const wasmPath = join(distPath, 'pg_dump.wasm')
if (!existsSync(wasmPath)) {
console.log('Building project before running tests...')
execSync('pnpm build', { stdio: 'inherit' })
}
})

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@@ -0,0 +1,10 @@
{
"extends": "../../tsconfig.json",
"compilerOptions": {
"types": [
"@types/emscripten",
"node"
]
},
"include": ["src", "tsup.config.ts", "vitest.config.ts"]
}

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@@ -0,0 +1,28 @@
import { cpSync } from 'fs'
import { resolve } from 'path'
import { defineConfig } from 'tsup'
const entryPoints = [
'src/index.ts',
'src/pg_dump.ts',
]
const minify = process.env.DEBUG === 'true' ? false : true
export default defineConfig([
{
entry: entryPoints,
sourcemap: true,
dts: {
entry: entryPoints,
resolve: true,
},
clean: true,
minify: minify,
shims: true,
format: ['esm', 'cjs'],
onSuccess: async () => {
cpSync(resolve('release/pg_dump.wasm'), resolve('dist/pg_dump.wasm'))
}
},
])

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import { defineConfig } from 'vitest/config'
export default defineConfig({
test: {
globals: true,
environment: 'node',
testTimeout: 30000,
setupFiles: ['./tests/setup.ts'],
},
})

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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
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8. Limitation of Liability. In no event and under no legal theory,
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unless required by applicable law (such as deliberate and grossly
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END OF TERMS AND CONDITIONS

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<p align="center">
<a href="https://pglite.dev" target="_blank">
<picture>
<source media="(prefers-color-scheme: dark)"
srcset="https://raw.githubusercontent.com/electric-sql/pglite/main/docs/public/img/brand/logo.svg"
/>
<source media="(prefers-color-scheme: light)"
srcset="https://raw.githubusercontent.com/electric-sql/pglite/main/docs/public/img/brand/logo-light.svg"
/>
<img alt="ElectricSQL logo"
src="https://raw.githubusercontent.com/electric-sql/pglite/main/docs/public/img/brand/logo-light.svg"
/>
</picture>
</a>
</p>
<p align="center">
<a href="https://pglite.dev">PGlite</a> - the WASM build of Postgres from <a href="https://electric-sql.com" target="_blank">ElectricSQL</a>.<br>
Build reactive, realtime, local-first apps directly on Postgres.
<p>
<p align="center">
<a href="https://github.com/electric-sql/pglite/stargazers/"><img src="https://img.shields.io/github/stars/electric-sql/pglite?style=social&label=Star" /></a>
<!-- <a href="https://github.com/electric-sql/pglite/actions"><img src="https://github.com/electric-sql/pglite/workflows/CI/badge.svg" alt="CI"></a> -->
<a href="https://github.com/electric-sql/pglite/blob/main/LICENSE"><img src="https://img.shields.io/badge/license-Apache_2.0-green" alt="License - Apache 2.0"></a>
<a href="#roadmap"><img src="https://img.shields.io/badge/status-alpha-orange" alt="Status - Alpha"></a>
<a href="https://discord.electric-sql.com"><img src="https://img.shields.io/discord/933657521581858818?color=5969EA&label=discord" alt="Chat - Discord"></a>
<a href="https://twitter.com/ElectricSQL" target="_blank"><img src="https://img.shields.io/twitter/follow/nestframework.svg?style=social&label=Follow @ElectricSQL"></a>
<a href="https://fosstodon.org/@electric" target="_blank"><img src="https://img.shields.io/mastodon/follow/109599644322136925.svg?domain=https%3A%2F%2Ffosstodon.org"></a>
</p>
# PGlite - Postgres in WASM
![PGlite](https://raw.githubusercontent.com/electric-sql/pglite/main/screenshot.png)
PGlite is a WASM Postgres build packaged into a TypeScript client library that enables you to run Postgres in the browser, Node.js, Bun and Deno, with no need to install any other dependencies. It is only 3mb gzipped and has support for many Postgres extensions, including [pgvector](https://github.com/pgvector/pgvector).
```javascript
import { PGlite } from '@electric-sql/pglite'
const db = new PGlite()
await db.query("select 'Hello world' as message;")
// -> { rows: [ { message: "Hello world" } ] }
```
It can be used as an ephemeral in-memory database, or with persistence either to the file system (Node/Bun/Deno) or indexedDB (Browser).
Unlike previous "Postgres in the browser" projects, PGlite does not use a Linux virtual machine - it is simply Postgres in WASM.
For full documentation and user guides see [pglite.dev](https://pglite.dev).
## Browser
It can be installed and imported using your usual package manager:
```js
import { PGlite } from '@electric-sql/pglite'
```
or using a CDN such as JSDeliver:
```js
import { PGlite } from 'https://cdn.jsdelivr.net/npm/@electric-sql/pglite/dist/index.js'
```
Then for an in-memory Postgres:
```js
const db = new PGlite()
await db.query("select 'Hello world' as message;")
// -> { rows: [ { message: "Hello world" } ] }
```
or to persist the database to indexedDB:
```js
const db = new PGlite('idb://my-pgdata')
```
## Node/Bun/Deno
Install into your project:
**NodeJS**
```bash
npm install @electric-sql/pglite
```
**Bun**
```bash
bun install @electric-sql/pglite
```
**Deno**
```bash
deno add npm:@electric-sql/pglite
```
To use the in-memory Postgres:
```javascript
import { PGlite } from '@electric-sql/pglite'
const db = new PGlite()
await db.query("select 'Hello world' as message;")
// -> { rows: [ { message: "Hello world" } ] }
```
or to persist to the filesystem:
```javascript
const db = new PGlite('./path/to/pgdata')
```
## How it works
PostgreSQL typically operates using a process forking model; whenever a client initiates a connection, a new process is forked to manage that connection. However, programs compiled with Emscripten - a C to WebAssembly (WASM) compiler - cannot fork new processes, and operates strictly in a single-process mode. As a result, PostgreSQL cannot be directly compiled to WASM for conventional operation.
Fortunately, PostgreSQL includes a "single user mode" primarily intended for command-line usage during bootstrapping and recovery procedures. Building upon this capability, PGlite introduces a input/output pathway that facilitates interaction with PostgreSQL when it is compiled to WASM within a JavaScript environment.
## Limitations
- PGlite is single user/connection.
## How to build PGlite and contribute
The build process of PGlite is split into two parts:
1. Building the Postgres WASM module.
2. Building the PGlite client library and other TypeScript packages.
Docker is required to build the WASM module, along with Node (v20 or above) and [pnpm](https://pnpm.io/) for package management and building the TypeScript packages.
To start checkout the repository and install dependencies:
```bash
git clone https://github.com/electric-sql/pglite
cd pglite
pnpm install
```
To build everything, we have the convenient `pnpm build:all` command in the root of the repository. This command will:
1. Use Docker to build the Postgres WASM module. The artifacts from this are then copied to `/packages/pglite/release`.
2. Build the PGlite client library and other TypeScript packages.
To _only_ build the Postgres WASM module (i.e. point 1 above), run
```bash
pnpm wasm:build
```
If you don't want to build the WASM module and assorted WASM binaries from scratch, you can download them from a comment under the most recently merged PR, labeled as _interim build files_, and place them under `packages/pglite/release`.
To build all TypeScript packages (i.e. point 2 of the above), run:
```bash
pnpm ts:build
```
This will build all packages in the correct order based on their dependency relationships. You can now develop any individual package using the `build` and `test` scripts, as well as the `stylecheck` and `typecheck` scripts to ensure style and type validity.
Or alternatively to build a single package, move into the package directory and run:
```bash
cd packages/pglite
pnpm build
```
When ready to open a PR, run the following command at the root of the repository:
```bash
pnpm changeset
```
And follow the instructions to create an appropriate changeset. Please ensure any contributions that touch code are accompanied by a changeset.
## Acknowledgments
PGlite builds on the work of [Stas Kelvich](https://github.com/kelvich) of [Neon](https://neon.tech) in this [Postgres fork](https://github.com/electric-sql/postgres-wasm).
## License
PGlite is dual-licensed under the terms of the [Apache License 2.0](https://github.com/electric-sql/pglite/blob/main/LICENSE) and the [PostgreSQL License](https://github.com/electric-sql/pglite/blob/main/POSTGRES-LICENSE), you can choose which you prefer.
Changes to the [Postgres source](https://github.com/electric-sql/postgres-wasm) are licensed under the PostgreSQL License.

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import{a as v,b as B,c as A,d as q,f as _,g as z,i as l,j as g}from"./chunk-3WWIVTCY.js";import{d as R}from"./chunk-F4GETNPB.js";import{e as P,f as w,g as d,h as a,j as f}from"./chunk-QY3QWFKW.js";f();f();function E(m){let s=m.e;return s.query=m.query,s.params=m.params,s.queryOptions=m.options,s}var T,p,t,y,x,h,O,k=class{constructor(){w(this,t);this.serializers={...B};this.parsers={...v};w(this,T,!1);w(this,p,!1)}async _initArrayTypes({force:s=!1}={}){if(P(this,T)&&!s)return;d(this,T,!0);let e=await this.query(`
SELECT b.oid, b.typarray
FROM pg_catalog.pg_type a
LEFT JOIN pg_catalog.pg_type b ON b.oid = a.typelem
WHERE a.typcategory = 'A'
GROUP BY b.oid, b.typarray
ORDER BY b.oid
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_node_modules/@electric-sql/pglite/dist/contrib/amcheck.d.cts generated vendored Normal file
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import { d as PGliteInterface } from '../pglite-CntadC_p.cjs';
declare const amcheck: {
name: string;
setup: (_pg: PGliteInterface, _emscriptenOpts: any) => Promise<{
bundlePath: URL;
}>;
};
export { amcheck };

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import { d as PGliteInterface } from '../pglite-CntadC_p.js';
declare const amcheck: {
name: string;
setup: (_pg: PGliteInterface, _emscriptenOpts: any) => Promise<{
bundlePath: URL;
}>;
};
export { amcheck };

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import { d as PGliteInterface } from '../pglite-CntadC_p.cjs';
declare const auto_explain: {
name: string;
setup: (_pg: PGliteInterface, _emscriptenOpts: any) => Promise<{
bundlePath: URL;
}>;
};
export { auto_explain };

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import { d as PGliteInterface } from '../pglite-CntadC_p.js';
declare const auto_explain: {
name: string;
setup: (_pg: PGliteInterface, _emscriptenOpts: any) => Promise<{
bundlePath: URL;
}>;
};
export { auto_explain };

2
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_node_modules/@electric-sql/pglite/dist/contrib/bloom.cjs generated vendored Normal file
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10
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@@ -0,0 +1,10 @@
import { d as PGliteInterface } from '../pglite-CntadC_p.cjs';
declare const bloom: {
name: string;
setup: (_pg: PGliteInterface, _emscriptenOpts: any) => Promise<{
bundlePath: URL;
}>;
};
export { bloom };

10
_node_modules/@electric-sql/pglite/dist/contrib/bloom.d.ts generated vendored Normal file
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@@ -0,0 +1,10 @@
import { d as PGliteInterface } from '../pglite-CntadC_p.js';
declare const bloom: {
name: string;
setup: (_pg: PGliteInterface, _emscriptenOpts: any) => Promise<{
bundlePath: URL;
}>;
};
export { bloom };

2
_node_modules/@electric-sql/pglite/dist/contrib/bloom.js generated vendored Normal file
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import{j as e}from"../chunk-QY3QWFKW.js";e();var t=async(n,s)=>({bundlePath:new URL("../bloom.tar.gz",import.meta.url)}),r={name:"bloom",setup:t};export{r as bloom};
//# sourceMappingURL=bloom.js.map

1
_node_modules/@electric-sql/pglite/dist/contrib/bloom.js.map generated vendored Normal file
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{"version":3,"sources":["../../src/contrib/bloom.ts"],"sourcesContent":["import type {\n Extension,\n ExtensionSetupResult,\n PGliteInterface,\n} from '../interface'\n\nconst setup = async (_pg: PGliteInterface, _emscriptenOpts: any) => {\n return {\n bundlePath: new URL('../../release/bloom.tar.gz', import.meta.url),\n } satisfies ExtensionSetupResult\n}\n\nexport const bloom = {\n name: 'bloom',\n setup,\n} satisfies Extension\n"],"mappings":"yCAAAA,IAMA,IAAMC,EAAQ,MAAOC,EAAsBC,KAClC,CACL,WAAY,IAAI,IAAI,6BAA8B,YAAY,GAAG,CACnE,GAGWC,EAAQ,CACnB,KAAM,QACN,MAAAH,CACF","names":["init_esm_shims","setup","_pg","_emscriptenOpts","bloom"]}

2
_node_modules/@electric-sql/pglite/dist/contrib/btree_gin.cjs generated vendored Normal file
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"use strict";var s=Object.defineProperty;var c=Object.getOwnPropertyDescriptor;var a=Object.getOwnPropertyNames;var p=Object.prototype.hasOwnProperty;var u=(t,e)=>{for(var r in e)s(t,r,{get:e[r],enumerable:!0})},m=(t,e,r,i)=>{if(e&&typeof e=="object"||typeof e=="function")for(let n of a(e))!p.call(t,n)&&n!==r&&s(t,n,{get:()=>e[n],enumerable:!(i=c(e,n))||i.enumerable});return t};var f=t=>m(s({},"__esModule",{value:!0}),t);var g={};u(g,{btree_gin:()=>_});module.exports=f(g);var l=()=>typeof document>"u"?new URL(`file:${__filename}`).href:document.currentScript&&document.currentScript.src||new URL("main.js",document.baseURI).href,o=l();var d=async(t,e)=>({bundlePath:new URL("../btree_gin.tar.gz",o)}),_={name:"btree_gin",setup:d};0&&(module.exports={btree_gin});
//# sourceMappingURL=btree_gin.cjs.map

1
_node_modules/@electric-sql/pglite/dist/contrib/btree_gin.cjs.map generated vendored Normal file
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{"version":3,"sources":["../../src/contrib/btree_gin.ts","../../../../node_modules/.pnpm/tsup@8.3.0_@microsoft+api-extractor@7.47.7_@types+node@20.16.11__postcss@8.4.47_tsx@4.19.2_typescript@5.6.3/node_modules/tsup/assets/cjs_shims.js"],"sourcesContent":["import type {\n Extension,\n ExtensionSetupResult,\n PGliteInterface,\n} from '../interface'\n\nconst setup = async (_pg: PGliteInterface, _emscriptenOpts: any) => {\n return {\n bundlePath: new URL('../../release/btree_gin.tar.gz', import.meta.url),\n } satisfies ExtensionSetupResult\n}\n\nexport const btree_gin = {\n name: 'btree_gin',\n setup,\n} satisfies Extension\n","// Shim globals in cjs bundle\n// There's a weird bug that esbuild will always inject importMetaUrl\n// if we export it as `const importMetaUrl = ... __filename ...`\n// But using a function will not cause this issue\n\nconst getImportMetaUrl = () =>\n typeof document === 'undefined'\n ? new URL(`file:${__filename}`).href\n : (document.currentScript && document.currentScript.src) ||\n new URL('main.js', document.baseURI).href\n\nexport const importMetaUrl = /* @__PURE__ */ getImportMetaUrl()\n"],"mappings":"yaAAA,IAAAA,EAAA,GAAAC,EAAAD,EAAA,eAAAE,IAAA,eAAAC,EAAAH,GCKA,IAAMI,EAAmB,IACvB,OAAO,SAAa,IAChB,IAAI,IAAI,QAAQ,UAAU,EAAE,EAAE,KAC7B,SAAS,eAAiB,SAAS,cAAc,KAClD,IAAI,IAAI,UAAW,SAAS,OAAO,EAAE,KAE9BC,EAAgCD,EAAiB,EDL9D,IAAME,EAAQ,MAAOC,EAAsBC,KAClC,CACL,WAAY,IAAI,IAAI,iCAAkCC,CAAe,CACvE,GAGWC,EAAY,CACvB,KAAM,YACN,MAAAJ,CACF","names":["btree_gin_exports","__export","btree_gin","__toCommonJS","getImportMetaUrl","importMetaUrl","setup","_pg","_emscriptenOpts","importMetaUrl","btree_gin"]}

10
_node_modules/@electric-sql/pglite/dist/contrib/btree_gin.d.cts generated vendored Normal file
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@@ -0,0 +1,10 @@
import { d as PGliteInterface } from '../pglite-CntadC_p.cjs';
declare const btree_gin: {
name: string;
setup: (_pg: PGliteInterface, _emscriptenOpts: any) => Promise<{
bundlePath: URL;
}>;
};
export { btree_gin };

10
_node_modules/@electric-sql/pglite/dist/contrib/btree_gin.d.ts generated vendored Normal file
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@@ -0,0 +1,10 @@
import { d as PGliteInterface } from '../pglite-CntadC_p.js';
declare const btree_gin: {
name: string;
setup: (_pg: PGliteInterface, _emscriptenOpts: any) => Promise<{
bundlePath: URL;
}>;
};
export { btree_gin };

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