Redis HGETALL command is used to get all the fields and values of the hash stored at the key. In the returned value, every field name is followed by its value, so the length of the reply is twice the size of the hash.
Array reply, list of fields and their values stored in the hash, or an empty list when the key does not exist.
Following is the basic syntax of Redis HGETALL command.
redis 127.0.0.1:6379> HGETALL KEY_NAME
redis 127.0.0.1:6379> HSET myhash field1 "foo" (integer) 1 redis 127.0.0.1:6379> HSET myhash field2 "bar" (integer) 1 redis 127.0.0.1:6379> HGETALL myhash 1) "field1" 2) "Hello" 3) "field2" 4) "World"