Server-Timing API for Hono

This module adds Server-Timing to response headers for Hono.

This middleware is based on the work of yosuke-furukawa, thank you!

Install

npm install @puazzi/hono-timing

Usage

import { serve } from '@hono/node-server';
import { Hono } from 'hono';
import { endTime, setMetric, startTime, timing } from "@puazzi/hono-timing";

const app = new Hono();

// add the middleware to your router
app.use('*', timing());

app.get('/', async (c) => {

  // add custom metrics
  setMetric(c, 'region', 'europe-west3')

  // add custom metrics with timing, must be in milliseconds
  setMetric(c, 'custom', 23.8, 'My custom Metric')

  // start a new timer
  startTime(c, 'db');
  const data = await db.findMany(...);

  // end the timer
  endTime(c, 'db');

  return c.json({ response: data });
});

serve(app);

Conditionally enabled

import { Hono } from 'hono';
import { timing } from '@puazzi/hono-timing';

const app = new Hono();

app.use(
  '*',
  timing({
    // c: Context of the request
    enabled: (c) => c.req.method === 'POST'
  })
);

API

Config

Name	Type	Default	Description
total	boolean	true	Show a total response time.
enabled	boolean | (c: Context) => boolean	true	Whether timings should be added to the headers or not.
totalDescription	string	'Total Response Time'	Description for the total response time.
autoEnd	boolean	true	If startTime() should end automatically at the end of the request. If disabled, not manually ended timers will not be shown.
crossOrigin	boolean | string	false	The origin this timings header should be readable. If false, only from current origin. If true, from all origin. If string, from this domain(s). Multiple domains must be separated with a comma. See docs.

Result