Microsoft.Extensions.Options.IOptionsMonitor<TOptions> public interface IOptionsMonitor<TOptions> Monitors changes on a TOptions instance. Documentation Code namespace Microsoft.Extensions.Options { public interface IOptionsMonitor<[Nullable(2)] [DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)] out TOptions> { TOptions CurrentValue { get; } TOptions Get(string name); IDisposable OnChange(Action<TOptions, string> listener); } }