Node script for load testing!

load-test.ts

/**
 * Usage
 * - npm install loadtest
 * - npx ts-node load-test.ts
 */

import loadtest from 'loadtest';

const method = 'GET';

const statusCallback = (error, result, latency) => {
  console.log(
    `Progress: [Requests ${latency.totalRequests}] [totalErrors ${latency.totalErrors}] [time (in sec) ${latency.totalTimeSeconds}] [meanLatencyMS ${latency.meanLatencyMs}] [minLatencyMs ${latency.minLatencyMs}] [maxLatencyMs ${latency.maxLatencyMs}]`,
  );
};

const requestGenerator = (_, options, client, callback) => {
  const request = client(options, callback);

  options.headers['Content-Type'] = 'application/json';
  options.headers.Authorization = 'some-token';
  request.end();

  return request;
};

const options = {
  url: `https://your-url-goes-here.com`,
  method,
  requestsPerSecond: 6,
  concurrency: 6,
  maxSeconds: 20,
  requestGenerator,
  statusCallback,
};

loadtest.loadTest(options, (error, results) => {
  if (error) {
    return console.error('Got an error: %s', error);
  }
  console.log(results);
  console.log('Tests run successfully');
});