node_modules/langsmith/dist/utils/async_caller.js

import pRetry from "p-retry";
import PQueueMod from "p-queue";
const STATUS_NO_RETRY = [
    400,
    401,
    403,
    404,
    405,
    406,
    407,
    408,
    409, // Conflict
];
/**
 * A class that can be used to make async calls with concurrency and retry logic.
 *
 * This is useful for making calls to any kind of "expensive" external resource,
 * be it because it's rate-limited, subject to network issues, etc.
 *
 * Concurrent calls are limited by the `maxConcurrency` parameter, which defaults
 * to `Infinity`. This means that by default, all calls will be made in parallel.
 *
 * Retries are limited by the `maxRetries` parameter, which defaults to 6. This
 * means that by default, each call will be retried up to 6 times, with an
 * exponential backoff between each attempt.
 */
export class AsyncCaller {
    constructor(params) {
        Object.defineProperty(this, "maxConcurrency", {
            enumerable: true,
            configurable: true,
            writable: true,
            value: void 0
        });
        Object.defineProperty(this, "maxRetries", {
            enumerable: true,
            configurable: true,
            writable: true,
            value: void 0
        });
        Object.defineProperty(this, "queue", {
            enumerable: true,
            configurable: true,
            writable: true,
            value: void 0
        });
        this.maxConcurrency = params.maxConcurrency ?? Infinity;
        this.maxRetries = params.maxRetries ?? 6;
        const PQueue = "default" in PQueueMod ? PQueueMod.default : PQueueMod;
        this.queue = new PQueue({ concurrency: this.maxConcurrency });
    }
    // eslint-disable-next-line @typescript-eslint/no-explicit-any
    call(callable, ...args) {
        return this.queue.add(() => pRetry(() => callable(...args).catch((error) => {
            // eslint-disable-next-line no-instanceof/no-instanceof
            if (error instanceof Error) {
                throw error;
            }
            else {
                throw new Error(error);
            }
        }), {
            onFailedAttempt(error) {
                if (error.message.startsWith("Cancel") ||
                    error.message.startsWith("TimeoutError") ||
                    error.message.startsWith("AbortError")) {
                    throw error;
                }
                // eslint-disable-next-line @typescript-eslint/no-explicit-any
                if (error?.code === "ECONNABORTED") {
                    throw error;
                }
                // eslint-disable-next-line @typescript-eslint/no-explicit-any
                const status = error?.response?.status;
                if (status && STATUS_NO_RETRY.includes(+status)) {
                    throw error;
                }
            },
            retries: this.maxRetries,
            randomize: true,
            // If needed we can change some of the defaults here,
            // but they're quite sensible.
        }), { throwOnTimeout: true });
    }
    // eslint-disable-next-line @typescript-eslint/no-explicit-any
    callWithOptions(options, callable, ...args) {
        // Note this doesn't cancel the underlying request,
        // when available prefer to use the signal option of the underlying call
        if (options.signal) {
            return Promise.race([
                this.call(callable, ...args),
                new Promise((_, reject) => {
                    options.signal?.addEventListener("abort", () => {
                        reject(new Error("AbortError"));
                    });
                }),
            ]);
        }
        return this.call(callable, ...args);
    }
    fetch(...args) {
        return this.call(() => fetch(...args).then((res) => (res.ok ? res : Promise.reject(res))));
    }
}