Manual testing using the Emulator Suite
July 1, 2026 ยท View on GitHub
This directory contains a very basic web app that connects to the Cloud Firestore and Firebase Authentication emulators.
You sign in and read and write data in a completely local environment.
Setup
To install the dependencies for this sample run npm install inside this directory.
You will also need the Firebase CLI.
Run
First start the emulators:
firebase --project=fakeproject emulators:start
Next visit http://localhost:5000 in your browser and you should see a
very barebones chat app powered by the Cloud Firestore and Firebase
Authentication emulators. Try adding some messages and then click the link
at the bottom of the UI to view the messages in the Emulator UI.