[CODE] Add redis utils

- connect redis client

Author: devjun10

Diff for: advanced/redis_utils.lua

@@ -0,0 +1,104 @@
+local redis = require("redis")
+local M = {}
+
+function M.create_client()
+    local host = "127.0.0.1"
+    local port = 6379
+    local client, err = redis.connect(host, port)
+    if not client then
+        error("Failed to connect to Redis: " .. tostring(err))
+    end
+    return client
+end
+
+-- String
+function M.set_string(client, key, value)
+    client:set(key, value)
+end
+
+function M.get_string(client, key)
+    return client:get(key)
+end
+
+-- Hash
+function M.set_hash(client, key, field, value)
+    client:hset(key, field, value)
+end
+
+function M.get_hash(client, key, field)
+    return client:hget(key, field)
+end
+
+function M.get_all_hash(client, key)
+    return client:hgetall(key)
+end
+
+-- List
+function M.push_list(client, key, value)
+    client:rpush(key, value)
+end
+
+function M.push_list_left(client, key, value)
+    client:lpush(key, value)
+end
+
+function M.get_list(client, key)
+    return client:lrange(key, 0, -1)
+end
+
+function M.pop_list_left(client, key)
+    return client:lpop(key)
+end
+
+function M.pop_list_right(client, key)
+    return client:rpop(key)
+end
+
+-- Set
+function M.add_set(client, key, value)
+    client:sadd(key, value)
+end
+
+function M.get_set(client, key)
+    return client:smembers(key)
+end
+
+function M.is_member_of_set(client, key, value)
+    return client:sismember(key, value)
+end
+
+function M.remove_from_set(client, key, value)
+    return client:srem(key, value)
+end
+
+-- Sorted Set
+function M.add_sorted_set(client, key, score, value)
+    client:zadd(key, score, value)
+end
+
+function M.get_sorted_set(client, key)
+    return client:zrange(key, 0, -1, "WITHSCORES")
+end
+
+function M.get_sorted_set_within_range(client, key, min_score, max_score)
+    return client:zrangebyscore(key, min_score, max_score, "WITHSCORES")
+end
+
+-- Bitmap
+function M.set_bit(client, key, offset, value)
+    client:setbit(key, offset, value)
+end
+
+function M.get_bit(client, key, offset)
+    return client:getbit(key, offset)
+end
+
+function M.count_bits(client, key, start_index, end_index)
+    return client:bitcount(key, start_index, end_index)
+end
+
+function M.bitfield_operations(client, key, ...)
+    return client:bitfield(key, ...)
+end
+
+return M