The Decrement() methods reduce the value of a given key if the corresponding value can be parsed to an integer value. These operations are provided at a protocol level to eliminate the need to get, update, and reset a simple integer value in the database. All the .NET Client Library methods support the use of an explicit offset value that will be used to reduce the stored value in the database. Note that the Decrement methods may not be used with keys that were first created with a Store method. To initialize a counter, you must first use either Increment or Decrement with a default value.

Decrement the inventory counter by 1, defaulting to 100 if the key doesn't exist.

client.Remove("inventory"); //reset the counter
client.Decrement("inventory", 100, 1); //counter will be 100
client.Decrement("inventory", 100, 1); //counter will be 99

Decrement the inventory counter by 1, defaulting to 100 if the key doesn't exist and set an expiry of 60 seconds.

client.Decrement("inventory", 100, 1, TimeSpan.FromSeconds(60));

Decrement the inventory counter by 1, defaulting to 100 if the key doesn't exist and set an expiry of 5 minutes.

client.Decrement("inventory", 100, 1, DateTime.Now.AddMinutes(5));

Decrement the inventory counter by 1, defaulting to 100 if the key doesn't exist. Fail if CAS value doesn't match CAS value on server.

var result = client.ExecuteGet("inventory");
client.Decrement("inventory", 100, 1, result.Cas);

Decrement the inventory counter by 1, defaulting to 100 if the key doesn't exist and set an expiry of 60 seconds. Fail if CAS value doesn't match CAS value on server.

var result = client.ExecuteGet("inventory");
client.Decrement("inventory", 100, 1, TimeSpan.FromSeconds(60), result.Cas);

Decrement the inventory counter by 1, defaulting to 100 if the key doesn't exist and set an expiry of 5 minutes. Fail if CAS value doesn't match CAS value on server.

var result = client.ExecuteGet("inventory");
client.Decrement("inventory", 100, 1, DateTime.Now.AddMinutes(5), result.Cas);

ExecuteDecrement will return an instance of an IMutateOperationResult

Decrement the inventory counter by 1, defaulting to 100 if the key doesn't exist.

client.Remove("inventory"); //reset the counter
client.ExecuteDecrement("inventory", 100, 1); //counter will be 100
var result = client.ExecuteDecrement("inventory", 100, 1); //counter will be 99

if (! result.Success)
{
    Console.WriteLine("Decrement failed with message {0} and status code {1}", result.Message, result.StatusCode);
    
    if (result.Exception != null)
    {
        throw result.Exception;
    }
}

Decrement the inventory counter by 1, defaulting to 100 if the key doesn't exist and set an expiry of 60 seconds.

client.ExecuteDecrement("inventory", 100, 1, TimeSpan.FromSeconds(60));

Decrement the inventory counter by 1, defaulting to 100 if the key doesn't exist and set an expiry of 5 minutes.

client.ExecuteDecrement("inventory", 100, 1, DateTime.Now.AddMinutes(5));

Decrement the inventory counter by 1, defaulting to 100 if the key doesn't exist. Fail if CAS value doesn't match CAS value on server.

var result = client.ExecuteGet("inventory");
client.ExecuteDecrement("inventory", 100, 1, result.Cas);

Decrement the inventory counter by 1, defaulting to 100 if the key doesn't exist and set an expiry of 60 seconds. Fail if CAS value doesn't match CAS value on server.

var result = client.ExecuteGet("inventory");
client.ExecuteDecrement("inventory", 100, 1, TimeSpan.FromSeconds(60), result.Cas);

Decrement the inventory counter by 1, defaulting to 100 if the key doesn't exist and set an expiry of 5 minutes. Fail if CAS value doesn't match CAS value on server.

var result = client.ExecuteGet("inventory");
client.ExecuteDecrement("inventory", 100, 1, DateTime.Now.AddMinutes(5), result.Cas);