Way to add call credentials to insecure grpc channel without using DI factory

There is a documented way to create a gRPC client using the dependency injection framework that allows the usage of call credentials on insecure channels:

builder.Services.AddGrpcClient<Greeter.GreeterClient>(o =>
{
    o.Address = new Uri("http://localhost:5060");
    o.ChannelOptionsActions.Add((opt) =>
    {
        opt.UnsafeUseInsecureChannelCallCredentials = true;
    });
}).AddCallCredentials((context, metadata) =>
{
    metadata.Add("Authorization",
        "Bearer ...");
    return Task.CompletedTask;
});

I have not found a way to do the same if I manually create a channel. It seems the classes I would need to use are all internal/private classes. Is this by design or is there simply a way I’m missing to do this?

[JamesNK]

Got it. I just discovered the same thing in a test.

Using insecure + channel credentials (i.e. not passed as an argument to a CallOptions.Credentials) wasn’t considered. I’ll see whether there is a way to fix this.

[JamesNK]

Fix here: https://github.com/grpc/grpc-dotnet/pull/1802

There is a behavior change here that needs to be discussed before merging.