add get_webhook script

Author: codebam

get_webhook.mjs

@@ -0,0 +1,16 @@
+import process from "process";
+
+const sha256 = async (text) =>
+  crypto.subtle
+    .digest("SHA-256", new TextEncoder().encode(text))
+    .then((array_buffer) =>
+      Array.from(new Uint8Array(array_buffer))
+        .map((b) => b.toString(16).padStart(2, "0"))
+        .join("")
+    );
+
+const base_url = process.argv[2];
+const token = process.argv[3];
+const path = await sha256(token);
+
+console.log(base_url + path);