[Yandex Cloud documentation](../../../index.md) > [Yandex Cloud Functions](../../index.md) > [Developing in .NET Core](index.md) > Invocation context

# .NET Core function invocation context

_Invocation context_ is an object that is optionally accepted by the [request handler](handler.md) if the [YcFunction interface model](model/yc-function.md) is used. It is a `Yandex.Cloud.Functions.Context` type object providing properties you can use to get more information about the C# function version:
* `FunctionFolderId`: Returns the folder containing the function.
* `FunctionId`: Returns the string ID of the function.
* `FunctionVersion`: Returns the string ID of the function version.
* `MemoryLimitInMB`: Returns the amount of memory specified when creating the version, in MB.
* `RequestId`: Returns the request ID.
* `TokenJson`: Returns the parameters for authentication with the Yandex Cloud APIs.