The Firebase Local Emulator Suite is a set of individual service emulators built to accurately mimic the behavior of Firebase services. This means you can connect your app directly to these emulators to perform integration testing or QA without touching production data.
The Firebase Local Emulator Suite consists of the following emulators:
- Firestore emulator: This emulator allows you to create and manage a local Firestore database.
- Realtime Database emulator: This emulator allows you to create and manage a local Realtime Database.
- Cloud Firestore emulator: This emulator allows you to create and manage a local Cloud Firestore database.
- Cloud Storage emulator: This emulator allows you to create and manage a local Cloud Storage bucket.
- Authentication emulator: This emulator allows you to create and manage a local Authentication service.
- Functions emulator: This emulator allows you to run Functions locally.
- Hosting emulator: This emulator allows you to preview your Hosting projects locally.
- Pub/Sub emulator: This emulator allows you to create and manage a local Pub/Sub topic.
- Extensions emulator: This emulator allows you to test Firebase Extensions locally.
To use the Firebase Local Emulator Suite, you need to install the Firebase CLI. Once you have installed the CLI, you can start the emulators by running the following command:
firebase emulators:start
This will start all of the emulators in the suite. You can then connect your app to the emulators by setting the appropriate environment variables.
The Firebase Local Emulator Suite is a great way to test your app locally without affecting production data. It is also a great way to prototype new features and experiment with different configurations.