Learn more about ActionCable Redis temporary variables holder from our experts. Our Redis Support team is here to help you with your questions and concerns.

ActionCable Redis temporary variables holder

Did you know that ActionCable does not have built-in functionality for a temporary variables holder tied to Redis?

However, we can use Redis as a general-purpose data store to create a short-term variable holder in relation with ActionCable.

According to our experts, we can use Redis as a temporary variables holder in an ActionCable application as seen below:

• First, we have to install and configure Redis. Then verify Redis is running and accessible to our application.
• We have to include a Redis client library to interact with Redis from our Rails application. The most popular Redis client library for Ruby is redis-rb. We can add it to our application’s Gemfile and install it via Bundler.
• Now, it is time to establish a connection to the Redis server using the Redis client library in our Rails application.
• Once we have a Redis connection, we can use it to store and retrieve temporary variables.
  In relation to ActionCable, we can leverage the connection identifier as a unique identifier for each client connection.
• Furthermore, we can use Redis’ key-value store to store a temporary variable.

Our experts would like to point out that Redis is an external data store. Hence using it for temporary variables leads to additional latency compared to storing variables in memory within the ActionCable server process.

Therefore, we have to analyze if Redis is necessary for our specific use case or if an in-memory storage mechanism within the ActionCable server process would suffice.

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Conclusion

To conclude, our Support Techs gave us a quick peek into ActionCable Redis short-term variables holder.