Utilities for syncing data between regions

Usage no npm install needed!

<script type="module">
  import 5appRegionSync from 'https://cdn.skypack.dev/@5app/region-sync';


region sync

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Wraps SNS/SQS with some boilerplate logic we use for syncing data between regions:


  1. structure all messages with date, fromRegion and JSON encoded payload.


  1. prevents handlers being called if source + dest regions are the same
  2. deletes messages after handler has handled (if successful)
  3. sets up the continuous long poll

SQS usage:

const {createHandler} = require('@5app/region-sync');
const queueUrl = 'http://localhost:4576/000000000000/fooq';
const handler = createHandler({
    backoffSeconds: 4,
    longPollSeconds: 1,
    currentRegion: 'us-east-1',

handler.addQueueHandler(queueUrl, async function (msg) {
    // handle it, but if promise rejects, the message wont be removed.

SNS usage:

const {createPublisher} = require('@5app/region-sync');
const payload = {foo: 'bar'};
const publisher = createPublisher({
    currentRegion: 'us-east-1',
    snsRegion: 'us-east-1',
await publisher.publish(topicArn, payload);


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