Module: redis_connector.py

class RedisConnector:
    """
    RedisConnector facilitates connecting to a Redis data store.
    It handles setting and retrieving key-value pairs.
    """
 
 
def __init__(self, username: str, password: str, host='localhost', port=6379, db=0):
    """
    Initializes the connection to Redis.
 
    Parameters:
        username (str): Username for Redis authentication.
        password (str): Password for Redis authentication.
        host (str): Redis server host.
        port (int): Redis server port.
        db (int): Redis database number.
    """
 
 
def set_value(self, key, value):
    """
    Sets a value in Redis under the specified key.
 
    Parameters:
        key (str): The key under which the value is stored.
        value (str): The value to store.
    """
 
 
def get_value(self, key):
    """
    Retrieves a value from Redis by key.
 
    Parameters:
        key (str): The key whose value to retrieve.
 
    Returns:
        str: The value stored under the key, or None if the key does not exist.
    """
 
 
def push_to_list(self, list_name, *values):
    """
    Push values to the end of a list stored in Redis.
 
    Parameters:
        list_name (str): The name of the list.
        values (str): One or more values to push to the list.
    """
 
 
def get_from_list(self, list_name, start=0, end=-1):
    """
    Retrieve values from a list stored in Redis.
 
    Parameters:
        list_name (str): The name of the list.
        start (int): Optional. The index of the first element to retrieve (default is 0).
        end (int): Optional. The index of the last element to retrieve (default is -1, meaning all elements).
 
    Returns:
        list: A list of values within the specified range.
    """
 
 
def add_to_set(self, set_name, *values):
    """
    Add values to a set stored in Redis.
 
    Parameters:
        set_name (str): The name of the set.
        values (str): One or more values to add to the set.
    """
 
 
def get_from_set(self, set_name):
    """
    Get all members of a set stored in Redis.
 
    Parameters:
        set_name (str): The name of the set.
 
    Returns:
        set: A set containing all members of the set.
    """
 
 
def set_hash_field(self, hash_name, key, value):
    """
    Set the value of a field in a hash stored in Redis.
 
    Parameters:
        hash_name (str): The name of the hash.
        key (str): The field key.
        value (str): The value to set for the field.
    """
 
 
def get_hash_field(self, hash_name, key):
    """
    Get the value associated with a field in a hash stored in Redis.
 
    Parameters:
        hash_name (str): The name of the hash.
        key (str): The field key.
 
    Returns:
        str: The value associated with the field.
    """
 
 
def publish(self, channel, message):
    """
    Publish a message to a channel in Redis Pub/Sub.
 
    Parameters:
        channel (str): The channel to which the message will be published.
        message (str): The message to publish.
    """
 
 
def subscribe(self, channel):
    """
    Subscribe to a channel in Redis Pub/Sub.
 
    Parameters:
        channel (str): The channel to subscribe to.
 
    Returns:
        redis.client.PubSub: A subscriber object.
    """