@types/chunk-promise TypeScript

index.d.ts

declare module 'chunk-promise' {
  type PromiseArray<T> = (() => Promise<T>)[];
  type PromiseFlavor = 'PromiseAll' | 'PromiseAllSettled';
  type Options<T, F extends PromiseFlavor> = {
    concurrent?: number;
    sleepMs?: number;
    callback?: (
      chunkResults: F extends 'PromiseAllSettled'
        ? PromiseSettledResult<T>[]
        : T[],
      chunkIndex: number,
      allResults: F extends 'PromiseAllSettled'
        ? PromiseSettledResult<T>[]
        : T[],
    ) => Promise<void>;
    promiseFlavor?: F;
    logMe?: boolean;
  };

  export function chunkPromise<T, Type extends PromiseFlavor = 'PromiseAll'>(
    promiseArr: PromiseArray<T>,
    options: Options<T, Type>,
  ): Type extends 'PromiseAllSettled'
    ? Promise<PromiseSettledResult<T>[] | undefined>
    : Promise<T[] | undefined>;
}