Add project files.

GrpcService1/Program.cs

@@ -0,0 +1,18 @@
+using GrpcService1.Services;
+
+var builder = WebApplication.CreateBuilder(args);
+
+builder.AddServiceDefaults();
+
+// Add services to the container.
+builder.Services.AddGrpc();
+
+var app = builder.Build();
+
+app.MapDefaultEndpoints();
+
+// Configure the HTTP request pipeline.
+app.MapGrpcService<GreeterService>();
+app.MapGet("/", () => "Communication with gRPC endpoints must be made through a gRPC client. To learn how to create a client, visit: https://go.microsoft.com/fwlink/?linkid=2086909");
+
+app.Run();