Server Timing Plugin

This plugin adds support for auditing performance bottlenecks with Server Timing API

Install with:

bun add @elysiajs/server-timing

Then use it:

import { Elysia } from 'elysia'
import { serverTiming } from '@elysiajs/server-timing'

new Elysia()
    .use(serverTiming())
    .get('/', () => 'hello')
    .listen(3000)

Server Timing then will append header 'Server-Timing' with log duration, function name, and detail for each life-cycle function.

To inspect, open browser developer tools > Network > [Request made through Elysia server] > Timing.

Now you can effortlessly audit the performance bottleneck of your server.

Config

Below is a config which is accepted by the plugin

enabled

@default NODE_ENV !== 'production'

Determine whether or not Server Timing should be enabled

allow

@default undefined

A condition whether server timing should be log

trace

@default undefined

Allow Server Timing to log specified life-cycle events:

Trace accepts objects of the following:

• request: capture duration from request
• parse: capture duration from parse
• transform: capture duration from transform
• beforeHandle: capture duration from beforeHandle
• handle: capture duration from the handle
• afterHandle: capture duration from afterHandle
• total: capture total duration from start to finish

Pattern

Below you can find the common patterns to use the plugin.

• Allow Condition

Allow Condition

You may disable Server Timing on specific routes via allow property

import { Elysia } from 'elysia'
import { serverTiming } from '@elysiajs/server-timing'

new Elysia()
    .use(
        serverTiming({
            allow: ({ request }) => {
                return new URL(request.url).pathname !== '/no-trace'
            }
        })
    )