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`request-context.ts`

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request-context.tsBlame31 lines · 2 contributors

3ef4c9dClaude	1	/**
	2	* Request context middleware — attaches a request ID and start time to every
	3	* request. Adds the ID to the response headers for correlation + to c.get()
	4	* so downstream handlers and loggers can reference it.
	5	*/
	6
	7	import { createMiddleware } from "hono/factory";
	8
	9	export type RequestContextEnv = {
	10	Variables: {
	11	requestId: string;
	12	requestStart: number;
	13	};
	14	};
	15
	16	function genId(): string {
2c3ba6ecopilot-swe-agent[bot]	17	const rand = crypto.randomUUID().replace(/-/g, '').slice(0, 8);
3ef4c9dClaude	18	const ts = Date.now().toString(36);
	19	return `${ts}-${rand}`;
	20	}
	21
	22	export const requestContext = createMiddleware<RequestContextEnv>(
	23	async (c, next) => {
	24	const existing = c.req.header("x-request-id");
	25	const id = existing && existing.length < 100 ? existing : genId();
	26	c.set("requestId", id);
	27	c.set("requestStart", Date.now());
	28	c.header("X-Request-Id", id);
	29	await next();
	30	}
	31	);