CODEWITHSUNDEEP
google-cloud-platformgoogle-cloud-firestoregoogle-cloud-pubsub
Randy Shu
Randy Shu

Reputation: 33

When to use Firestore vs Pub/Sub

Can you elaborate on the differences between Pub/Sub and Firestore and provide some scenarios or use cases on which one to choose?

I'm not sure which one to use for building an app for a food delivery service that services real-time updates reflected as soon as they are added or changed to the database, ensuring that customers and drivers are aware of when food is ready for pickup and when food is in transit to their end destination such as UberEats.

Upvotes: 1

Views: 818

Answers (2)

Robert G
Robert G

Reputation: 2055

Pub/Sub is like a notification system wherein you receive updates when something is added, changed or removed.

Firestore, on the other hand, is a NoSQL database for mobile (Android, iOS) and other web apps that can be directly access via native SDK. It can support many data types, from simple strings to complex objects. It also supports whatever data structure that works best for your app.

It is best to use Firestore for your app as it provides realtime updates.

You can check for the detailed documentation of Pub/Sub and Firestore.

For Firestore, you can either use either mobile/web client library or server client library.

Here's the link for Firestore, containing its benefits and key features.

Upvotes: -1

guillaume blaquiere
guillaume blaquiere

Reputation: 75790

The difference is quite simple:

  • Firestore (RealtimeDB) is for backend to frontend (customers/users) communication and realtime updates
  • Pubsub is a backend to backend message bus for async processing.

In your use case, you won't use PubSub to send notification to your users! Use realtimeDB to perform these updates.

Upvotes: 4

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