hook-onrequest

Example Code

import { Elysia } from "elysia";

export default new Elysia()
  .get("/a", () => "a")
  .onRequest(() => console.log("onRequest"))
  .get("/b", () => "b");

Tests

Test	bun	node
a	🏃	🏃
b	🏃	🏃

a

bun

=== Test Execution ===
$ curl -s -D- "http://localhost:3000/a"
HTTP/1.1 200 OK
content-type: text/plain;charset=utf-8
Date: Sun, 01 Jun 2025 06:24:05 GMT
Content-Length: 1

a

=== Runtime Output ===
[runtime] Bun 1.2.15
Started development server: http://localhost:3000
onRequest

node

=== Test Execution ===
$ curl -s -D- "http://localhost:3000/a"
HTTP/1.1 200 OK
Content-Type: text/plain
Content-Length: 1
Date: Sun, 01 Jun 2025 06:24:06 GMT
Connection: keep-alive
Keep-Alive: timeout=5

a

=== Runtime Output ===
(node:28) ExperimentalWarning: Type Stripping is an experimental feature and might change at any time
(Use `node --trace-warnings ...` to show where the warning was created)
[runtime] Node v22.16.0
🦊 Elysia is running at :::3000
onRequest

b

bun

=== Test Execution ===
$ curl -s -D- "http://localhost:3000/b"
HTTP/1.1 200 OK
content-type: text/plain;charset=utf-8
Date: Sun, 01 Jun 2025 06:24:06 GMT
Content-Length: 1

b

=== Runtime Output ===
[runtime] Bun 1.2.15
Started development server: http://localhost:3000
onRequest

node

=== Test Execution ===
$ curl -s -D- "http://localhost:3000/b"
HTTP/1.1 200 OK
Content-Type: text/plain
Content-Length: 1
Date: Sun, 01 Jun 2025 06:24:07 GMT
Connection: keep-alive
Keep-Alive: timeout=5

b

=== Runtime Output ===
(node:27) ExperimentalWarning: Type Stripping is an experimental feature and might change at any time
(Use `node --trace-warnings ...` to show where the warning was created)
[runtime] Node v22.16.0
🦊 Elysia is running at :::3000
onRequest