How to implement "trigger" for redis datastore?

@muriel.schmidt 

To implement a trigger-like functionality in Redis, you can use the Redis Pub/Sub (publish/subscribe) feature. Here's a general approach to implementing a trigger in Redis:

1. Set up a Redis Pub/Sub channel: Create a new Redis Pub/Sub channel that will be used to trigger events. You can do this using the PUBLISH and SUBSCRIBE commands.
2. Publish events: Whenever a specific action occurs that should trigger an event, publish a message to the Redis Pub/Sub channel using the PUBLISH command. This message will be sent to all subscribers of the channel.
3. Subscribe to the channel: Create a subscriber that listens for messages on the Redis Pub/Sub channel. You can do this by using the SUBSCRIBE command in a separate Redis client or application.
4. Handle the event: When a message is published to the channel, your subscriber will receive it. You can then execute the necessary logic or actions based on the received message.

By following these steps, you can create a trigger-like functionality in Redis by using the Pub/Sub feature. This approach allows you to decouple the trigger event from the action that needs to be taken, making your application more modular and scalable.