WiP Signed url error.

index.js

@@ -75,26 +75,24 @@ async function generateSignedUrl() {
 //generateSignedUrl().catch(console.error);
 
 app.get("/generateSignedURL", (req, res) => {
-  console.log("Started server function!");
+  async function generateSignedUrl() {
+    console.log("Started server function!");
 
-  const options = {
-    version: "v2",
-    action: "write",
-    expires: Date.now() + 86400000
-  };
-  const filename = req.query.filename;
+    const options = {
+      version: "v2",
+      action: "write",
+      expires: Date.now() + 86400000
+    };
+    const filename = req.query.filename;
 
-  console.log("Filename: ", filename);
-  console.log("Bucket name:", bucket.name);
+    console.log("Filename: ", filename);
+    console.log("Bucket name:", bucket.name);
 
-  const url = bucket.file(filename).getSignedUrl(options, function(err, url) {
-    if (err) {
-      console.error(err);
-      return;
-    }
-    return url;
-  });
+    const [url] = await bucket.file(filename).getSignedUrl(options);
 
-  console.log(`The signed url for ${filename} is ${url}.`);
-  res.send(url);
+    console.log(`The signed url for ${filename} is ${url}.`);
+    res.send(url);
+  }
+
+  generateSignedUrl().catch(console.error);
 });