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Use INCRBYFLOAT to add a floating point number to the value stored at a key and get the result. The stored value and the increment are parsed as double precision floats, and a missing key counts as 0. A negative increment subtracts, and there is no separate decrement command. A value that is not a valid number returns an error. The reply is the new value as a string, which client libraries usually decode into a native number. The result is stored in that same textual form, so repeated increments accumulate the usual binary floating point rounding error: for money and other exact quantities, count in integer units with INCRBY instead.

Syntax

Arguments

Important points

  • The value is always returned as a bulk string, in both RESP2 and RESP3. Client libraries commonly decode it to a language number.

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

INCRBYFLOATOverview