- Usage:
-
SUBSCRIBE channel [ channel ... ]
- Complexity:
- O(N) where N is the number of channels to subscribe to.
- Since:
- 2.0.0
Subscribes the client to the specified channels.
Once the client enters the subscribed state it is not supposed to issue any
other commands, except for additional SUBSCRIBE, SSUBSCRIBE, PSUBSCRIBE, UNSUBSCRIBE, SUNSUBSCRIBE,
PUNSUBSCRIBE, PING, RESET and QUIT commands.
However, if RESP3 is used (see HELLO) it is possible for a client to issue any commands while in subscribed state.
Note that RESET can be called to exit subscribed state.
For more information, see Pub/sub.
RESP2/RESP3 Reply
When successful, this command doesn't return anything. Instead, for each channel, one message with the first element being the string subscribe is pushed as a confirmation that the command succeeded.