22 lines
807 B
TypeScript
22 lines
807 B
TypeScript
export type RouteHandler = (req: Request, url: URL, server: unknown) => Promise<Response | null>;
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export function createHttpFetchHandler(deps: {
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metrics: { withHttpMetrics: (fn: () => Promise<Response>) => Promise<Response> };
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CORS_HEADERS: Record<string, string>;
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routes: RouteHandler[];
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}) {
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return async function fetchHandler(req: Request, server: unknown): Promise<Response> {
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return deps.metrics.withHttpMetrics(async () => {
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if (req.method === "OPTIONS") {
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return new Response("", { headers: deps.CORS_HEADERS });
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}
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const url = new URL(req.url);
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for (const route of deps.routes) {
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const response = await route(req, url, server);
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if (response) return response;
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}
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return new Response("Not found", { status: 404 });
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});
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};
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}
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