LPUSH to add one or more elements to the head of a list, creating the list when the key does not exist.
Elements are inserted one after another, so they end up in reverse order relative to the argument list: LPUSH key a b c leaves the list as c, b, a. The reply is the length of the list after the push. If the key holds a value of another type the command returns an error.
Pushing to the head and popping from the tail with RPOP gives a first-in, first-out queue, while popping from the head with LPOP gives a stack. Combine with LTRIM to keep a capped list of recent items.
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