@worker-tools/middleware/esm/utils/unsettle.js

A suite of standalone HTTP server middlewares for Worker Runtimes.

import { AggregateError } from "./aggregate-error.js";
export const isFulfilled = (r) => {
    return r.status === 'fulfilled';
};
export const isRejected = (r) => {
    return r.status === 'rejected';
};
/**
 * Helper function that unwinds `Promise.allSettled`:
 * Takes the promise returned and throws a `AggregateError` iff at least one promise settled with a rejection.
 * Otherwise returns the list of fulfilled values.
 * @param allSettledPromise A promise returned by `Promise.allSettled`
 * @returns List of fulfilled values
 */
export const unsettle = async (allSettledPromise) => {
    const rs = await allSettledPromise;
    if (rs.every(isFulfilled))
        return rs.map(r => r.value);
    throw new AggregateError(rs.filter(isRejected).map(r => r.reason), "One or more Promises in 'unsettle' were rejected");
};
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