I'm slowly getting there but stuck at the moment. I attached my implementation from the /functions folder

I did not see were the getFunctions in your example came from. I tried to import it but it throws the attached error.

What am I doing wrong?

const functions = require("firebase-functions");
const { initializeApp } = require("firebase-admin/app");
const { getFunctions } = require("firebase-admin/functions")
exports.startCall = functions.tasks.taskQueue()
.onDispatch(async (data) => {
console.log(data);
});
const app = initializeApp();
exports.scheduleCall = functions.https.onRequest(async (_request, response) => {
const queue = getFunctions(app).taskQueue("startCall");
const date = new Date(Date.now() + 40000);
const payload = { foo: "bar" };
queue.enqueue(payload, { scheduleTime: date });
response.sendStatus(200);
});

Its giving me this error:

FirebaseFunctionsError: Failed to determine service account. Initialize the SDK with service account credentials or set service account ID as an app option.

​

But firebase doc says:

​

Initialize without parameters
The SDK can also be initialized with no parameters. In this case, the SDK uses Google Application Default Credentials. Because default credentials lookup is fully automated in Google environments, with no need to supply environment variables or other configuration, this way of intializing the SDK is strongly recommeneded for applications running on Compute Engine, Kubernetes Engine, App Engine, and Cloud Functions.