decr method

Future<int> decr(
  1. String key
)

Decrements the number stored at key by one. If the key does not exist, it is set to 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. This operation is limited to 64 bit signed integers.

See incr for extra information on increment/ decrement operations.

Returns the value of key after the decrement.

Implementation

Future<int> decr(String key) async {
  return (await tier1.decr(key)).toInteger().payload;
}