https://github.com/morishin/promises-in-batches

Execute promises sequentially in batches.
https://github.com/morishin/promises-in-batches

Last synced: 23 days ago
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Execute promises sequentially in batches.

• Host: GitHub
• URL: https://github.com/morishin/promises-in-batches
• Owner: morishin
• License: mit
• Created: 2019-02-12T17:44:43.000Z (almost 6 years ago)
• Default Branch: master
• Last Pushed: 2024-03-31T13:47:42.000Z (8 months ago)
• Last Synced: 2024-10-04T10:46:12.064Z (about 1 month ago)
• Language: TypeScript
• Homepage: https://www.npmjs.com/package/promises-in-batches
• Size: 46.9 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

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# promises-in-batches

Execute promises sequentially in batches.

You can executes promises concurrently with a limitation of concurrency.

e.g.) Batch Size: 3

![promises-in-batches](https://user-images.githubusercontent.com/1413408/52653624-a7689f80-2f33-11e9-91cf-4064f9a3974b.png)

## Installation

```shell

npm install promises-in-batches

```

## Usage

```typescript

import { makePromiseBatch } from "promises-in-batches";

const promiseGenerator1: () => Promise = () =>

  new Promise((resolve, _) => {

    setTimeout(() => {

      resolve(1);

    }, 100);

  });

const promiseGenerator2: () => Promise = () =>

  new Promise((resolve, _) => {

    setTimeout(() => {

      resolve(2);

    }, 300);

  });

const promiseGenerator3: () => Promise = () =>

  new Promise((resolve, _) => {

    setTimeout(() => {

      resolve(3);

    }, 200);

  });

const batchSize = 2;

const results = await makePromiseBatch(

  [promiseGenerator1, promiseGenerator2, promiseGenerator3],

  batchSize

);

console.log(results); // [ [ 1, 2 ], [ 3 ] ]

```