This sample demonstrates how to use F# to write grain code. The sample consists of three projects:
- HelloWorldInterfaces - a C# project containing a grain interface,
IHelloGrain - Grains - an F# projects implementing
IHelloGrain - HelloWorld - A C# project to host the grains
The Microsoft.Orleans.CodeGenerator.MSBuild package does not support emitting F# code, however it supports analyzing F# assemblies and emitting C# code. Therefore, this sample works by instructing the code generator to analyze the Grains project when it is generating code for the HelloWorld project. This is accomplished using the following directive in HelloWorld's Program.cs file:
[assembly: KnownAssembly(typeof(Grains.HelloGrain))]With the above attribute in place, the code generator analyzes the F# assembly and emits C# code into the HelloWorld project.
Run the sample by executing the following command:
dotnet run --project HelloWorld