server_inside.md

Inside of go-redis

The go-redis handles RESP (REdis Serialization Protocol) and interprets any commands based on the RESP so that all developers can develop Redis-compatible servers easily. Because the go-redis is a compatible framework based on RESP and Redis command specifications, all developers can connect to a compatible server based on the go-redis using general client drivers for Redis as the following.

The go-redis handles all system commands such as PING and SELECT automatically, and so the developers can easily implement their Redis-compatible server only by simply handling user commands such as SET and GET.

Supported commands

The go-redis defines the CommandHandler for the following supported Redis commands as the system and user command handler.

Connection commands

Supported	Connection Command	Redis Version	Note
O	ECHO	1.0.0
O	PING	1.0.0
O	QUIT	1.0.0
O	SELECT	1.0.0

Server management commands

Supported	Set Command	Redis Version	Note
O	CONFIG SET	2.0.0
O	CONFIG GET	2.0.0

Generic commands

Supported	Generic Command	Redis Version	Note
-	COPY	6.2.0
O	DEL	1.0.0
-	DUMP	2.6.0
O	EXISTS	1.0.0
O	EXPIRE	1.0.0
O	EXPIREAT	1.2.0
-	EXPIRETIME	7.0.0
O	KEYS	1.0.0
-	MOVE	1.0.0
-	MIGRATE	2.6.0
-	OBJECT ENCODING	2.2.3
-	OBJECT FREQ	4.0.0
-	OBJECT HELP	6.2.0
-	OBJECT IDLETIME	2.6.0
-	OBJECT REFCOUNT	2.2.3
-	PERSIST	2.2.0
-	PEXPIRE	2.6.0
-	PEXPIREAT	2.6.0
-	PEXPIRETIME	7.0.0
-	PTTL	2.6.0
-	RANDOMKEY	1.0.0
O	RENAME	1.0.0
O	RENAMENX	1.0.0
-	RESTORE	2.8.0
-	SCAN	2.8.0
-	SORT	1.0.0
-	SORT_RO	7.0.0
-	TOUCH	3.2.1
O	TTL	1.0.0
O	TYPE	1.0.0
-	UNLINK	4.0.0
-	WAIT	3.0.0

String commands

Supported	String Command	Redis Version	Note
O	APPEND	2.0.0
O	DECR	1.0.0
O	DECRBY	1.0.0
O	GET	1.0.0
-	GETDEL	6.2.0
-	GETEX	6.2.0
O	GETRANGE	2.4.0
O	GETSET	1.0.0
O	INCR	1.0.0
O	INCRBY	1.0.0
-	INCRBYFLOAT	2.6.0
-	LCS	7.0.0
O	MGET	1.0.0
O	MSET	1.0.1
O	MSETNX	1.0.1
-	PSETNX	2.6.0
O	SET	1.0.0	Any options are not supported yet
-	SETEX	2.0.0
O	SETNX	2.0.0
-	SERANGE	2.2.0
O	STRLEN	2.2.0
O	SUBSTR	1.0.0

Hash commands

Supported	Hash Command	Redis Version	Note
O	HDEL	2.0.0
O	HEXISTS	2.0.0
O	HGET	2.0.0
O	HGETALL	2.0.0
-	HINCRBY	2.0.0
-	HINCRBYFLOAT	2.6.0
O	HKEYS	2.0.0
O	HLEN	2.0.0
O	HMGET	2.0.0
O	HMSET	2.0.0
-	HRANDFIELD	6.2.0
-	HSCAN	2.8.0
O	HSET	2.0.0
O	HSETNX	2.0.0
O	HSTRLEN	3.2.0
O	HVALS	2.0.0

List commands

Supported	List Command	Redis Version	Note
-	BLMOVE	7.0.0
-	BLMPOP	7.0.0
-	BLPOP	2.0.0
-	BRPOP	2.0.0
-	BRPOPLPUSH	2.2.0
O	LINDEX	1.0.0
-	LINSERT	2.2.0
O	LLEN	1.0.0
-	LMOVE	6.2.0
-	LMPOP	7.0.0
O	LPOP	1.0.0
-	LPOS	6.2.0
O	LPUSH	1.0.0
O	LPUSHX	2.2.0
O	LRANGE	1.0.0
-	LREM	1.0.0
-	LSET	1.0.0
-	LTRIM	1.0.0
O	RPOP	1.0.0
-	RPOPLPUSH	6.2.0
O	RPUSH	1.0.0
O	RPUSHX	2.2.0

Set commands

Supported	Set Command	Redis Version	Note
O	SADD	1.0.0
O	SCARD	1.0.0
-	SDIFF	1.0.0
-	SDIFFSTORE	1.0.0
-	SINTER	1.0.0
-	SINTERCARD	7.0.0
-	SINTERSTORE	1.0.0
O	SISMEMBER	1.0.0
O	SMEMBERS	1.0.0
-	SMISMEMBER	6.2.0
-	SMOVE	1.0.0
-	SPOP	1.0.0
-	SRANDMEMBER	1.0.0
O	SREM	1.0.0
-	SSCAN	2.8.0
-	SUNION	1.0.0
-	SUNIONSTORE	1.0.0

Sorted set commands

Supported	Sorted Set Command	Redis Version	Note
-	BZMPOP	7.0.0
-	BZPOPMAX	5.0.0
-	BZPOPMIN	5.0.0
O	ZADD	1.2.0
O	ZCARD	1.2.0
-	ZCOUNT	2.0.0
-	ZDIFF	6.2.0
-	ZDIFFSTORE	6.2.0
O	ZINCRBY	1.2.0
-	ZINTER	6.2.0
-	ZINTERCARD	7.0.0
-	ZINTERSTORE	2.0.0
-	ZLEXCOUNT	2.8.9
-	ZMPOP	7.0.0
-	ZMSCORE	6.2.0
-	ZPOPMAX	5.0.0
-	ZPOPMIN	5.0.0
-	ZRANDMEMBER	6.2.0
O	ZRANGE	1.2.0
-	ZRANGEBYLEX	2.8.9
O	ZRANGEBYSCORE	1.0.5
-	ZRANGESTORE	6.2.0
-	ZRANK	2.0.0
O	ZREM	1.2.0
-	ZREMRANGEBYLEX	2.8.9
-	ZREMRANGEBYRANK	2.0.0
-	ZREMRANGEBYSCORE	1.2.0
O	ZREVRANGE	1.2.0
-	ZREVRANGEBYLEX	2.8.9
-	ZREVRANGEBYSCORE	2.2.0
-	ZREVRANK	2.0.0
-	ZSCAN	2.8.0
O	ZSCORE	1.2.0
-	ZUNION	6.2.0
-	ZUNIONSTORE	2.0.0

Bitmap commands

Supported	Bitmap Command	Redis Version	Note
-	BITCOUNT	2.6.0
-	BITFIELD	3.2.0
-	BITFIELD_RO	6.0.0
-	BITOP	2.6.0
-	BITPOS	2.8.7
-	GETBIT	2.2.0
-	SETBIT	2.2.0