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Functions

Initialize functions​

  • Create a empty folder to run this command into
  • You might be asked to login to firebase
  • Follow the setup commands as mentioned then
firebase init functions

Deploy functions​

firebase deploy --only functions

Default configurations​

  • I use it to get started
const functions = require("firebase-functions");
const admin = require("firebase-admin");
var express = require("express");
var app = express();
const cors = require("cors")({ origin: true });
app.use(cors);
admin.initializeApp();
const db = admin.firestore();

app.get("/", function (req, res) {
	res.status(200).send("No User ID");
});

exports.app = functions.https.onRequest(app);

To Start the emulators​

  • Test the APIs locally
  • Check the logs to get the URL for testing
firebase emulators:start --only functions

To test locally​

Check emulator logs to get the base URL

To kill a process for emulators​

  • Sometimes the processes are not killed properly
sudo lsof -i :8000
  • Add the pid in this command
kill PID