add server-control.ts

libraries/deno-commons-mod.ts

@@ -1,10 +1,10 @@
 // Reference:
 // - https://docs.deno.com/runtime/fundamentals/testing/
 
-import { assert } from "jsr:@std/assert/assert";
-import { assertEquals } from "jsr:@std/assert";
-import { decodeBase64, encodeBase64 } from "jsr:@std/encoding/base64";
-import { dirname } from "https://deno.land/std@0.208.0/path/mod.ts";
+import {assert} from "jsr:@std/assert/assert";
+import {assertEquals} from "jsr:@std/assert";
+import {decodeBase64, encodeBase64} from "jsr:@std/encoding/base64";
+import {dirname} from "https://deno.land/std@0.208.0/path/mod.ts";
 
 // reference: https://docs.deno.com/examples/hex_base64_encoding/
 // import { decodeBase64, encodeBase64 } from "jsr:@std/encoding/base64";
@@ -569,6 +569,26 @@ export class ProcessBar {
     }
 }
 
+export async function fetchWithTimeout(
+    input: URL | Request | string,
+    timeout?: number,
+    initCallback?: (init: RequestInit) => RequestInit,
+): Promise<Response> {
+    const fetchTimeout = timeout || 10000;
+    const abortController = new AbortController();
+    const timeoutHandler = setTimeout(() => {
+        abortController.abort(`Timeout ${fetchTimeout} ms`);
+    }, fetchTimeout);
+    let init: RequestInit = {};
+    init.signal = abortController.signal;
+    if (initCallback) {
+        init = initCallback(init);
+    }
+    const response = await fetch(input, init);
+    clearTimeout(timeoutHandler);
+    return response;
+}
+
 Deno.test("isOn", () => {
     assertEquals(false, isOn(undefined));
     assertEquals(false, isOn(""));