NemAn/gRPCServer/Program.cs

using Grpc.Net.Client;
using SpotifyService.Services;

var builder = WebApplication.CreateBuilder(args);

// Additional configuration is required to successfully run gRPC on macOS.
// For instructions on how to configure Kestrel and gRPC clients on macOS, visit https://go.microsoft.com/fwlink/?linkid=2099682

// Add services to the container.
builder.Services.AddGrpc();

builder.Services.AddHttpClient();

builder.Services.AddCors(o => o.AddPolicy("AllowAll", builder =>
{
    builder.AllowAnyOrigin()
           .AllowAnyMethod()
           .AllowAnyHeader()
           .WithExposedHeaders("Grpc-Status", "Grpc-Message", "Grpc-Encoding", "Grpc-Accept-Encoding");
}));

var app = builder.Build();

app.UseRouting();

app.UseCors();

// Configure the HTTP request pipeline.
app.MapGrpcService<SearchService>();
app.UseGrpcWeb();

app.UseEndpoints(endpoints =>
{
    endpoints.MapGrpcService<SearchService>().EnableGrpcWeb().RequireCors("AllowAll");
});

app.Run();