What experience do you have with Redis? What data structures and commands have you used?

In working with Redis, I used various data structures and commands to optimize performance and simplify application logic.

Main structures and commands:

• Strings: SET, GET, INCR, DECR — for storing simple values and counters.
• Hashes: HSET, HGET, HGETALL — for storing objects with fields.
• Lists: LPUSH, RPUSH, LPOP, RPOP — for implementing queues and stacks.
• Sets: SADD, SREM, SMEMBERS — for storing unique elements.
• Sorted Sets: ZADD, ZRANGE — for rankings and sorted data.

Example of using a hash to store user information:

Jedis jedis = new Jedis("localhost");

// Adding user data
jedis.hset("user:1000", "name", "Ivan");
jedis.hset("user:1000", "age", "30");

// Retrieving all fields
Map<String, String> user = jedis.hgetAll("user:1000");
System.out.println(user);

I also used transactions and Lua scripts for atomic operations and data consistency.