DECRBY

Decrement the integer value of a key by a given number.

If a key does not exist, it is initialized as 0 before performing the operation. An error is returned if the key contains a value of the wrong type or contains a string that can not be represented as integer.

Arguments

key

string

required

The key to decrement.

decrementBy

integer

required

The amount to decrement by.

Response

The value at the key after the decrementing.