I just want a Cloud Function to make an API call and GET data

...and I've tried Google and the FF Community, but without luck.

Why not use API Calls? The requirement needs better flexibility, and I am hiding the authorizations behind the Cloud Function.

So what I was looking for is a cloud function that will GET data from a target host and path, and return the data as JSON.

I'll copy-paste my current code (this is NOT working; Google Cloud Functions suggest that the call was successful, but the data is not being returned).

const functions = require('firebase-functions');
const admin = require('firebase-admin');
const https = require('https');

exports.testGetCases = functions.region('australia-southeast1').
  runWith({
    timeoutSeconds: 60, // Consider increasing if necessary
    memory: '512MB'
  }).https.onCall(
  (data, context) => {
    return new Promise((resolve, reject) => {
      const options = {
        hostname: '{callHostUrl}',
        port: 443,
        path: '{callPath}',
        method: 'GET',
        headers: {
          'Authorization': `Basic {basicAuthValue}`
        }
      };

      const req = https.request(options, (res) => {
        let dataReceived = '';

        res.on('data', (chunk) => {
          dataReceived += chunk;

          // Process data in chunks if needed (e.g., parsing JSON)
          // ...
        });

        res.on('end', () => {
          try {
            const responseJSON = JSON.parse(dataReceived);
            return resolve(responseJSON.data); // Assuming data is in "data" property
          } catch (error) {
            reject(new functions.https.HttpsError('internal', 'Error processing response', error));
          }
        });
      });

      req.on('error', (error) => {
        reject(new functions.https.HttpsError('internal', 'Error reading data', error));
      });

      req.end();
    });
  });

So I have these questions:

What did I miss in the code above?
Is there an existing working sample online for a Cloud Function that I need?

EDIT 4 September 2024: Answer found. Refer to replies below for further details.