SUBSCRIBE

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.