C# gRPC客户端侦听器设置授权标头

using Grpc.Net.Client;
using Grpc.Net.Client.Interceptors;
using System.Threading.Tasks;

public class AuthInterceptor : Interceptor
{
    private readonly string _token;

    public AuthInterceptor(string token)
    {
        _token = token;
    }

    public override Task<TResponse> UnaryServerHandler<TRequest, TResponse>(
        TRequest request,
        ServerCallContext context,
        UnaryServerMethod<TRequest, TResponse> continuation)
    {
        var headers = new Metadata();
        headers.Add("authorization", $"Bearer {_token}");
        var newContext = context.WithHeaders(headers);
        return continuation(request, newContext);
    }
}

public class GrpcClient
{
    private readonly Greeter.GreeterClient _client;

    public GrpcClient(string token)
    {
        var channel = GrpcChannel.ForAddress("http://localhost:50051");
        var interceptor = new AuthInterceptor(token);
        _client = new Greeter.GreeterClient(channel.WithInterceptors(interceptor));
    }

    public async Task SayHelloAsync(string name)
    {
        var reply = await _client.SayHelloAsync(new HelloRequest { Name = name });
        Console.WriteLine("Greeting: " + reply.Message);
    }
}

class Program
{
    static async Task Main(string[] args)
    {
        var client = new GrpcClient("your-auth-token");
        await client.SayHelloAsync("World");
    }
}