To test this make sure you got npx installed (if you're on the latest NodeJS LTS version it's already installed): https://www.npmjs.com/package/npx
Then run npx https://gist.github.com/stipsan/3d803d3774d82aea080c50f6f832c0bc and open http://localhost:8082 to test it!
| { | |
| "name": "server-timing-demo", | |
| "version": "0.0.1", | |
| "private": true, | |
| "bin": "./server-timing-demo.js" | |
| } |
| #!/usr/bin/env node | |
| // see for screenshot: | |
| // https://twitter.com/paul_irish/status/829090506084749312 | |
| const http = require('http'); | |
| function requestHandler(request, response) { | |
| const headers = { | |
| 'Server-Timing': ` | |
| sql-1;desc="MySQL lookup Server";dur=100, | |
| sql-2;dur=900;desc="MySQL shard Server #1", | |
| fs;dur=600;desc="FileSystem", | |
| cache;dur=300;desc="Cache", | |
| other;dur=200;desc="Database Write", | |
| other;dur=110;desc="Database Read", | |
| cpu;dur=1230;desc="Total CPU" | |
| `.replace(/\n/g, '') | |
| }; | |
| response.writeHead(200, headers); | |
| response.write(''); | |
| return setTimeout(_ => { | |
| response.end(); | |
| }, 1230) | |
| } | |
| http.createServer(requestHandler) | |
| .listen(8082) | |
| .on('error', console.error); |