Differences between Redis Pub/Sub and Redis Streams

Redis Pub/Sub (Publish/Subscribe)

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When to Use Redis Pub/Sub

Redis Pub/Sub is a messaging paradigm where there are two main components: publishers and subscribers. Publishers send messages (events) to channels, and subscribers receive messages from the channels they are interested in. It’s a simple and efficient way to implement a publish/subscribe system for real-time communication within an application....

Redis Streams

Redis Pub/Sub is suitable for scenarios where you need real-time broadcasting of events, such as:...

When to Use Redis Streams?

Redis Streams is a more advanced data structure for managing event streams with more features compared to Pub/Sub. It allows you to append messages to a stream and read messages from it in a more structured and persistent way....

Which One to Use When?

Redis Streams is more suitable when you need:...

Differences between Redis Pub/Sub and Redis Streams:

Redis Pub/Sub is suitable for simple, real-time messaging scenarios where all subscribers need to receive the same message simultaneously. It’s lightweight and efficient for scenarios like broadcasting notifications or updates. Redis Streams should be used when you require message persistence, ordering, and more advanced features like consumer groups. It’s a better choice for scenarios where message history, guaranteed message delivery, or complex message processing are necessary....