Redis

The Redis connector is used to connect to a Redis database, helping applications quickly and efficiently interact with the Redis database.

Redis is a high-performance key-value storage system. It is often used in scenarios such as caching, session management, real-time message transfer, and rankings. Redis supports multiple data structures, including strings, hash tables, lists, sets, and sorted sets. It also provides advanced functions such as transactions, publish/subscription, Lua script execution, persistence, and clustering.
The default Redis port number is 6379. The administrator can change the port number as required.

Creating a Redis Connection

Log in to the new ROMA Connect console.
In the navigation pane on the left, choose Connector. On the page displayed, click New Connection.
Select the Redis connector.

In the dialog box displayed, configure the connector and click OK.

Parameter	Description
Name	Enter the connector instance name.
Host IP Address	Enter the IP address of the database.
Port	Enter the port number to which the database is connected.
Database	Enter the name of the database to be connected.
Password	Password for connecting to the database.
Description	Enter the description of the connector to identify it.

Action

Basic operations on sorted sets
Basic operations on sets
Basic operations on hashes
Basic operations on lists
Basic operations on strings
Basic operations on keys
Basic operations on strings

Configuration Parameters

The following configuration is equivalent to the ZADD key score member command to add an element to a sorted set. key indicates the name of the sorted set, score indicates the score of the element, and member indicates the member value of the element. This configuration means to add the element apple to the sorted set myset and the score of this element is 3.

Parameter	Description
Sorted set zadd zrem zcard zrangebyscore/zrevrangebyscore zrange/zrevrange	Key: name of the sorted set. Value: member value of an element. Score: score of an element. Start Index: lowest score. End Index: highest score.
Set srem sismember srandmember spop sadd	Key: name of the set. Value: member value of an element.
Hash hdel hlen hset/hsetnx hincrby hget hgetall	Key: name of the hash. Field Name: value of the key in the hash. Value: value corresponding to the key in the hash. No operation is performed when the key exists: No: zset; Yes: zsetnx Increment: adds a specified value to a numeric field in the hash.
List lrange lpop/rpop lpush/rpush lrem llen lindex leset	Table Name: name of a data table in the database. Data to Insert: value of each field in the target record of the insert operation.
String set/setnx append setbit get incrby decrby getrange strlen	Key: name of the character string. Value: value of the character string. Timeout (s): expiration time of the character string. No operation is performed when the key exists: No: set; Yes: setnx
Key del lrem expire expireat ttl persist	Key: name of the key.