30 lines
1.0 KiB
TypeScript
30 lines
1.0 KiB
TypeScript
import type { Middleware } from "./common";
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// A middleware has to be a function of type Middleware
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const scheduled: Middleware = async (request, env, _ctx, middlewareCtx) => {
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const url = new URL(request.url);
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if (url.pathname === "/__scheduled") {
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const cron = url.searchParams.get("cron") ?? "";
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await middlewareCtx.dispatch("scheduled", { cron });
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return new Response("Ran scheduled event");
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}
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const resp = await middlewareCtx.next(request, env);
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// If you open the `/__scheduled` page in a browser, the browser will automatically make a request to `/favicon.ico`.
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// For scheduled Workers _without_ a fetch handler, this will result in a 500 response that clutters the log with unhelpful error messages.
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// To avoid this, inject a 404 response to favicon.ico loads on the `/__scheduled` page
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if (
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request.headers.get("referer")?.endsWith("/__scheduled") &&
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url.pathname === "/favicon.ico" &&
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resp.status === 500
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) {
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return new Response(null, { status: 404 });
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}
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return resp;
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};
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export default scheduled;
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