Dapr (state store) integration results in compiler warning with no obvious way to fix it

[Mark Parker (godefroi)]

In the Dapr integration documentation for state stores, the following code is suggested:

var builder = DistributedApplication.CreateBuilder(args);

var stateStore = builder.AddDaprStateStore("statestore");

builder.AddProject<Projects.ExampleProject>("exampleproject")
       .WithDaprSidecar()
       .WithReference(stateStore);

When I add this to my AppHost, however, I get this warning:

`IDistributedApplicationResourceBuilderExtensions.WithReference<TDestination>(IResourceBuilder<TDestination>, IResourceBuilder<IDaprComponentResource>)' is obsolete: 'Add reference to the sidecar resource instead of the project resource`

.. but I don't know how I can do that; how would I even get a reference to the "sidecar resource"?

[Artpupser (Artpupser)]

Hi Mark Parker (@godefroi),

The new API expects you to move the WithReference call inside the WithDaprSidecar callback, so the reference is added to the sidecar resource rather than the project resource:

var stateStore = builder.AddDaprStateStore("statestore");

builder.AddProject<Projects.ExampleProject>("exampleproject")
       .WithDaprSidecar(sidecar =>
       {
           sidecar.WithReference(stateStore);
       });

The WithDaprSidecar overload that takes an Action<IResourceBuilder<IDaprSidecarResource>> callback gives you a builder scoped to the sidecar resource itself, and WithReference on that builder is the non-obsolete path.

If you need to configure sidecar options at the same time:

builder.AddProject<Projects.ExampleProject>("exampleproject")
       .WithDaprSidecar(sidecar =>
       {
           sidecar.WithOptions(new DaprSidecarOptions { AppId = "exampleproject" })
                  .WithReference(stateStore);
       });

[Mark Parker (godefroi)]

Ah, perfect, that works. I appreciate the help. The documentation should probably be updated with the new API.