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Use LSET to overwrite the element at a given position in a list. Indexes are zero-based from the head and negative indexes count from the tail. The command returns an error when the key does not exist or the index is out of range, since it never grows the list; use LPUSH or RPUSH to add elements. Locate the position first with LPOS when you know the value but not the index.

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 TLS REDIS_URL from the Upstash console. REST examples use UPSTASH_REDIS_REST_URL and UPSTASH_REDIS_REST_TOKEN.

Related topics

LSETLPOSOverview