XGROUP CREATECONSUMER

Create a consumer named <consumername> in the consumer group <groupname> of the stream that's stored at <key>.

Consumers are also created automatically whenever an operation, such as XREADGROUP, references a consumer that doesn't exist. This is valid for XREADGROUP only when there is data in the stream.

RESP2/RESP3 Reply

Integer reply: the number of created consumers, either 0 or 1.