When should I use cloud functions?

Developers can use Cloud Functions to keep users engaged and up to date with relevant information about an app . Consider, for example, an app that allows users to follow one another’s activities in the app. Each time a user adds themselves as a follower of another user, a write occurs in the Realtime Database.

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What is the Firebase emulator?

The Firebase Local Emulator Suite is a set of advanced tools for developers looking to build and test apps locally using Cloud Firestore, Realtime Database, Cloud Storage, Authentication, Cloud Functions, Pub/Sub, and Firebase Hosting. It provides a rich user interface to help you get running and prototyping quickly.

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How do you deploy a cloud function?

Deployment. Deployments work by uploading an archive containing your function’s source code to a Cloud Storage bucket . Once the source code has been uploaded, Cloud Build automatically builds your code into a container image and pushes that image to either Artifact Registry or Container Registry.

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