Cloud Functions for Firebase with custom HTTP path

Question

Is there a way of defining the HTTP path (after the first '/') to access a Cloud Function for Firebase?

What I'm tying to achieve is to create a rest-like path system to access the functions.

I have a GitHub with my project if there is any doubts.

Answer 1

The cloudfunctions.net domain will route all traffic beginning with a function name to that function. So, for example, you could do this with a standard Express app:

var functions = require('firebase-functions');
var express = require('express');
var app = express();

app.post('/bar', (req, res) => {
  res.end('bar');
});

app.get('/foo', (req, res) => {
  res.end('foo');
});

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

The above will allow you to make requests to /myFunc/foo and /myFunc/bar and handle them separately. One thing to note is that currently if you pass an Express app there will be an error if you try to access your function at /myFunc, instead needing to make your request to /myFunc/ (with a trailing slash).