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Use HSTRLEN to get the length in bytes of the value stored in a hash field. The reply is 0 when either the field or the key is missing. Since the value itself is not transferred, this is how you check the size of a large field, or decide whether it is worth fetching, without paying for it.

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

HSTRLENOverview