This script proves that AWS SQS APIs have a cache that caches the result based on the exact input for 40 seconds

cache-proof.js

import { SQS } from '@aws-sdk/client-sqs';
import { now } from "lodash";

const sqsClient = new SQS({
  credentials: {
    accessKeyId: 'X',
    secretAccessKey: 'Y',
  },
  region: 'us-east-2'
});

(async function () {
  // trigger cache
  const cacheStart = now();
  await sqsClient.listQueues({
    QueueNamePrefix: 'test-cache-'
  })
  // create queue and get url
  const queueUrl = (await sqsClient.createQueue({
    QueueName: 'test-cache-1',
    Attributes: {}
  })).QueueUrl;
  // show that listQueues does not return the new queue
  if (!!((await sqsClient.listQueues({ QueueNamePrefix: 'test-cache-' })).QueueUrls?.length))
    console.log('New queue shown in the listQueues with same args - - hypothesis is probably wrong');
  else
    console.log('New queue not shown in the listQueues with the same arg - hypothesis is probably right')

  // use a new prefix - it should be shown
  if (!!((await sqsClient.listQueues({ QueueNamePrefix: 'test-cache' })).QueueUrls?.length))
    console.log('New queue shown in the listQueues with new args - - hypothesis is probably right');
  else
    console.log('New queue not shown in the listQueues with the new arg - hypothesis is probably wrong')

  // wait until the cache is removed
  while (!((await sqsClient.listQueues({ QueueNamePrefix: 'test-cache-' })).QueueUrls?.length)) {
    // empty block
  }
  console.log(`AWS API cache takes ${now() - cacheStart} to invalidate`);
})()