XACK to tell a consumer group that entries have been processed.
Acknowledged entries leave the group’s pending entries list, so they are no longer counted as in flight and can no longer be claimed by another consumer. The reply counts the IDs that were actually pending, which means acknowledging twice is harmless and returns 0 the second time.
Acknowledging does not delete the entry from the stream: other groups still see it, and it stays until trimmed. Use XACKDEL when the entry should also be removed.
Syntax
Arguments
Response
The reply reports the result of the operation. Error replies have the same shape in RESP2 and RESP3 and are surfaced as exceptions by the SDKs below.Client libraries often decode bulk strings, maps, sets, and numeric strings into language-native values. The table describes the Redis wire reply.
Examples
TCP examples use the TLSREDIS_URL from the Upstash console. REST examples use UPSTASH_REDIS_REST_URL and UPSTASH_REDIS_REST_TOKEN.
Redis CLI
Redis CLI
@upstash/redis
@upstash/redis
upstash_redis
upstash_redis
ioredis
ioredis
node-redis
node-redis
redis-py
redis-py
go-redis
go-redis
jedis
jedis
redis-rs
redis-rs