Retrieving all messages

Similar to our previous steps, we will need to add a new method to our Redis dependency in order to add more functionality. This time, we will be creating a method that will iterate through all of our keys in Redis and return the corresponding messages in a list.

Adding a get all messages method to our Redis client

Let's add the following to our RedisClient:

def get_all_messages(self): 
    return [ 
        { 
            'id': message_id, 
            'message': self.redis.get(message_id) 
        } 
        for message_id in self.redis.keys() 
    ] 

We start off by using self.redis.keys() to gather all keys that are stored in Redis, which, in our case, are the message IDs. We then have a list comprehension that will iterate through all of the message IDs and create a dictionary for each one, containing the message ID itself and the message that is stored in Redis, using self.redis.get(message_id).

Note

For large scale applications in a production environment, it is...