request-id.ts16 lines · main

1	import type { MiddlewareHandler } from 'hono';
2
3	import { newId } from '@briven/shared';
4
5	/**
6	* Attach a ULID request id to every request. Forwarded downstream via the
7	* `x-request-id` response header so logs, traces, and customer bug reports
8	* share one key.
9	*/
10	export const requestId = (): MiddlewareHandler => async (c, next) => {
11	const incoming = c.req.header('x-request-id');
12	const id = incoming && incoming.length <= 64 ? incoming : newId('ev');
13	c.set('requestId', id);
14	c.header('x-request-id', id);
15	await next();
16	};