Method TryAddAsync

TryAddAsync(string, string, TimeSpan, CancellationToken)

Adds a value under a key unless the key already has a value.

Declaration

ValueTask<bool> TryAddAsync(string key, string value, TimeSpan lifetime, CancellationToken cancellationToken = default)

Parameters

Type	Name	Description
string	key	The key.
string	value	The value.
TimeSpan	lifetime	How long the value is kept. Must be positive.
CancellationToken	cancellationToken	A token to cancel the operation.

Returns

Type	Description
ValueTask<bool>	true if the value was added, or false if the key already has a value (or a counter).