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Using YARP to create a reverse proxy server

So far I’ve always used ProxyKit to create a reverse proxy in ASP.NET Core. But with the announcement of Yarp, it is time to try this alternative…

  • I created a new ASP.NET Core “empty” project:

dotnet new web -n ProxyTest -f netcoreapp3.1
The template "ASP.NET Core Empty" was created successfully.

Processing post-creation actions...
Running 'dotnet restore' on ProxyTest\ProxyTest.csproj...
  Restore completed in 278,54 ms for C:\Projects\test\yarptest\ProxyTest\ProxyTest.csproj.

Restore succeeded.

  • Next step is to reference the Microsoft.ReverseProxy preview nuget package:
<ItemGroup> 
  <PackageReference Include="Microsoft.ReverseProxy" Version="1.0.0-preview.1.*" /> 
</ItemGroup>
  • Now it is time to update our Startup.cs. This is what I had when using Proxykit:
  • And here is the updated Startup.cs after switching to Yarp:
    • In Yarp everything is handled through configuration right now, so the real magic is there:

    I'm curious on how this will evolve in the future...

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