https://github.com/bubblydoo/wait-until-aws-lambda

Fake `waitUntil` for AWS Lambda
https://github.com/bubblydoo/wait-until-aws-lambda

Last synced: 8 days ago
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Fake `waitUntil` for AWS Lambda

• Host: GitHub
• URL: https://github.com/bubblydoo/wait-until-aws-lambda
• Owner: bubblydoo
• Created: 2022-12-18T12:05:02.000Z (about 2 years ago)
• Default Branch: main
• Last Pushed: 2023-06-16T07:55:46.000Z (over 1 year ago)
• Last Synced: 2024-12-24T21:33:53.908Z (15 days ago)
• Language: TypeScript
• Size: 36.1 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# `waitUntil` for AWS Lambda

Fake `waitUntil` in AWS Lambda and other platforms that don't support it.

```js

import { waitUntilHandler, waitUntil } from 'wait-until-aws-lambda';

const delay = (time) => new Promise(res => setTimeout(res, time));

export const handler = waitUntilHandler(async (event, context) => {

  waitUntil(delay(1000));

  return 'hello world';

});

```

The callback will be delayed until the promises have finished.

### Motivation

We're migrating to Cloudflare Workers, partly because `waitUntil` is available there. With this library we can have a common API between Workers and Lambdas.

### Caveat

The `waitUntilHandler` only supports async handlers (which return promises).

### Other platforms

```js

import { WaitUntilList } from 'wait-until-aws-lambda';

let waitUntilList = new WaitUntilList();

export const doStuff = async () => {

  const waitUntil = waitUntilList.waitUntil;

  functionThatCanCallWaitUntil(waitUntil);

  await waitUntilList.waitUntilFinished();

  waitUntilList = new WaitUntilList();

};

```