How do I implement publish-subscribe in my app?

How do I implement publish-subscribe in my app?

To implement publish-subscribe, you can use a messaging system like MQTT or a library like Redis Pub/Sub. Which one are you considering?

I'm thinking about using Redis. Can you guide me through the steps?

Sure! First, install Redis and the Redis client for your programming language. Then, set up a publisher and a subscriber in your app.

What code example can you provide for the publisher?

Here's a simple example in Python: import redis; r = redis.Redis(); r.publish('channel', 'message'); This sends a message to the specified channel.

And how do I set up the subscriber?

For the subscriber, you can use: p = r.pubsub(); p.subscribe('channel'); for message in p.listen(): print(message); This will listen for messages on the channel.