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_node_modules/effect/dist/cjs/RateLimiter.js
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84
_node_modules/effect/dist/cjs/RateLimiter.js
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.withCost = exports.make = void 0;
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var internal = _interopRequireWildcard(require("./internal/rateLimiter.js"));
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function _interopRequireWildcard(e, t) { if ("function" == typeof WeakMap) var r = new WeakMap(), n = new WeakMap(); return (_interopRequireWildcard = function (e, t) { if (!t && e && e.__esModule) return e; var o, i, f = { __proto__: null, default: e }; if (null === e || "object" != typeof e && "function" != typeof e) return f; if (o = t ? n : r) { if (o.has(e)) return o.get(e); o.set(e, f); } for (const t in e) "default" !== t && {}.hasOwnProperty.call(e, t) && ((i = (o = Object.defineProperty) && Object.getOwnPropertyDescriptor(e, t)) && (i.get || i.set) ? o(f, t, i) : f[t] = e[t]); return f; })(e, t); }
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/**
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* Constructs a new `RateLimiter` which will utilize the specified algorithm
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* to limit requests (defaults to `token-bucket`).
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*
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* Notes
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* - Only the moment of starting the effect is rate limited. The number of concurrent executions is not bounded.
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* - Instances of `RateLimiter` can be composed.
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* - The "cost" per effect can be changed. See {@link withCost}
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*
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* @example
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* ```ts
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* import { Effect, RateLimiter } from "effect";
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* import { compose } from "effect/Function"
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*
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* const program = Effect.scoped(
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* Effect.gen(function* ($) {
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* const perMinuteRL = yield* $(RateLimiter.make({ limit: 30, interval: "1 minutes" }))
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* const perSecondRL = yield* $(RateLimiter.make({ limit: 2, interval: "1 seconds" }))
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*
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* // This rate limiter respects both the 30 calls per minute
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* // and the 2 calls per second constraints.
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* const rateLimit = compose(perMinuteRL, perSecondRL)
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*
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* // simulate repeated calls
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* for (let n = 0; n < 100; n++) {
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* // wrap the effect we want to limit with rateLimit
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* yield* $(rateLimit(Effect.log("Calling RateLimited Effect")));
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* }
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* })
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* );
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* ```
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*
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* @since 2.0.0
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* @category constructors
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*/
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const make = exports.make = internal.make;
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/**
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* Alters the per-effect cost of the rate-limiter.
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*
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* This can be used for "credit" based rate-limiting where different API endpoints
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* cost a different number of credits within a time window.
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* Eg: 1000 credits / hour, where a query costs 1 credit and a mutation costs 5 credits.
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*
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* @example
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* ```ts
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* import { Effect, RateLimiter } from "effect";
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* import { compose } from "effect/Function";
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*
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* const program = Effect.scoped(
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* Effect.gen(function* ($) {
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* // Create a rate limiter that has an hourly limit of 1000 credits
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* const rateLimiter = yield* $(RateLimiter.make({ limit: 1000, interval: "1 hours" }));
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* // Query API costs 1 credit per call ( 1 is the default cost )
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* const queryAPIRL = compose(rateLimiter, RateLimiter.withCost(1));
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* // Mutation API costs 5 credits per call
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* const mutationAPIRL = compose(rateLimiter, RateLimiter.withCost(5));
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* // Use the pre-defined rate limiters
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* yield* $(queryAPIRL(Effect.log("Sample Query")));
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* yield* $(mutationAPIRL(Effect.log("Sample Mutation")));
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*
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* // Or set a cost on-the-fly
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* yield* $(
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* rateLimiter(Effect.log("Another query with a different cost")).pipe(
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* RateLimiter.withCost(3)
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* )
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* );
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* })
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* );
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* ```
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*
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* @since 2.0.0
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* @category combinators
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*/
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const withCost = exports.withCost = internal.withCost;
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//# sourceMappingURL=RateLimiter.js.map
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