Performance of Grpc.AspNetCore vs REST over HTTP/2 Similar?

I wrote these two APIs to talk to another service(TestApp2). One forwards via GRPC and the other uses HTTP/2.
```c#
public async Task>> ForwardRequestGRPC()
{
try
{
var response = await GRPCGreeterClient.SayHelloAsync(new HelloRequest { Name = "World" });
return TypedResults.Ok(response);
}
catch (Exception ex)
{
ApplicationInstance.Logger.LogInformation(ex.Message);
ApplicationInstance.Logger.LogInformation(ex.StackTrace);
return TypedResults.BadRequest();
}

}

public async Task>> ForwardRequest()
{
try
{
var payload = new { name = "Hello" };
var jsonPayload = JsonSerializer.Serialize(payload);
var content = new StringContent(jsonPayload, Encoding.UTF8, "application/json");
var response = await RestClient.PostAsync(Program.TestApp2Address + "/sayhello", content);
var jsonString = await response.Content.ReadAsStringAsync();
var info = JsonSerializer.Deserialize(jsonString, SerializerOptions);
return TypedResults.Ok(info);
}
catch (Exception ex)
{
ApplicationInstance.Logger.LogInformation(ex.Message);
ApplicationInstance.Logger.LogInformation(ex.StackTrace);
return TypedResults.BadRequest();
}

}

}
```

Using these settings.

```c#
// Create the GRPC client and REST client
// Register endpoints
var channel = GrpcChannel.ForAddress(TestApp2Address);
var grpcclient = new Greeter.GreeterClient(channel);
app.Logger.LogInformation("Using http2");

HttpClient httpclient = new HttpClient
{
DefaultRequestVersion = HttpVersion.Version20,
DefaultVersionPolicy = HttpVersionPolicy.RequestVersionExact
};
var endpoints = new EndPoints(app, grpcclient, httpclient);
endpoints.RegisterEndpoints();
app.Run();
```

TestApp2 has these settings

```c#
static void Main(string[] args)
{
var builder = WebApplication.CreateBuilder(args);
builder.WebHost.ConfigureKestrel(options =>
{
options.Listen(IPAddress.Any, 9001, listenOptions =>
{
listenOptions.Protocols = HttpProtocols.Http2;
});
});

builder.Services.AddGrpc();
var app = builder.Build();
ApplicationInstance = app;
app.MapGrpcService();
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.MapPost("/sayhello", SayHello).Produces().Produces(400).WithName("SayHello");
app.Run();
}
```

And the two handlers being.

```c#
public override Task SayHello(HelloRequest request,
ServerCallContext context)
{
Employee employee1 = new Employee { Id = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR", Name = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR", Position = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR" };
Employee employee2 = new Employee { Id = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR", Name = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR", Position = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR" };
Employee employee3 = new Employee { Id = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR", Name = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR", Position = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR" };
Employee employee4 = new Employee { Id = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR", Name = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR", Position = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR" };
Employee employee5 = new Employee { Id = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR", Name = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR", Position = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR" };

Department department1 = new Department { Id = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR", Name = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR" };
department1.Employees.Add(employee1);
department1.Employees.Add(employee2);
department1.Employees.Add(employee3);
department1.Employees.Add(employee4);
department1.Employees.Add(employee5);

//_logger.LogInformation("Saying hello to {Name}", request.Name);
return Task.FromResult(new Company
{
Name = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR",
Departments = { department1 }
});
}
```

```c#
static Results> SayHello()
{
try
{
//ApplicationInstance?.Logger.LogInformation("Saying hello to REST");
Employee employee1 = new Employee { Id = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR", Name = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR", Position = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR" };
Employee employee2 = new Employee { Id = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR", Name = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR", Position = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR" };
Employee employee3 = new Employee { Id = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR", Name = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR", Position = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR" };
Employee employee4 = new Employee { Id = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR", Name = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR", Position = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR" };
Employee employee5 = new Employee { Id = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR", Name = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR", Position = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR" };

Department department1 = new Department { Id = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR", Name = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR" };
department1?.Employees?.Add(employee1);
department1?.Employees?.Add(employee2);
department1?.Employees?.Add(employee3);
department1?.Employees?.Add(employee4);
department1?.Employees?.Add(employee5);
var company = new Company
{
Name = "24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR24klP9hY8pfQStmPSFnGraxc8jAfPQhSS8zwW9Ltcvw6whCmXeRxDwXcLcAzl5SR",
};

company?.Departments?.Add(department1);

return TypedResults.Ok(company);
}
catch (Exception ex)
{
ApplicationInstance?.Logger.LogInformation(ex.Message);
ApplicationInstance?.Logger.LogInformation(ex.StackTrace);
return TypedResults.BadRequest();
}

}
```

I wrote a program to try to measure the latency of each API and what I found is that both have almost the same performance. I understand that GRPC uses HTTP/2 but I thought the serialization and deserialization would still make it faster.

```c#
using System.Diagnostics;

class Program
{
static string payload = "";

static async Task MakeRequestAsync(string url)
{
var httpClient = new HttpClient();
var response = await httpClient.PostAsync(url, new StringContent(payload));
return response.Content.ToString();
}

static async Task RunPerfTest(string url, int numRequests)
{
var stopwatch = new Stopwatch();
stopwatch.Start();
var tasks = new List();

for (int i = 0; i < numRequests; i++)
{
tasks.Add(MakeRequestAsync(url));
}

Task.WhenAll(tasks).Wait();
stopwatch.Stop();

double averageTimeInMS = stopwatch.Elapsed.TotalMilliseconds / numRequests;
Console.WriteLine("--------------------------------------------------------------------");
Console.WriteLine($"Total time for {numRequests} requests: {stopwatch.Elapsed.TotalSeconds} seconds");
Console.WriteLine($"{url}");
Console.WriteLine($"Average time per request: {averageTimeInMS} milliseconds");
Console.WriteLine("--------------------------------------------------------------------");
return averageTimeInMS;
}

static async Task Main(string[] args)
{
// Check if there are any command-line arguments
if (args.Length > 0)
{
// Iterate through the command-line arguments
for (int i = 0; i < args.Length; i++)
{
Console.WriteLine($"Argument {i + 1}: {args[i]}");
}
}
else
{
Console.WriteLine("No command-line arguments provided.");
Environment.Exit(-1);
}

int numRequests = int.Parse(args[0]);
int rounds = int.Parse(args[1]);
string urlGRPC = "http://localhost:9000/forwardGRPC";
string urlREST = "http://localhost:9000/forward";

string testcase = args[2];

List grpc = new List();
List rest = new List();
if (testcase == "grpc")
{
for (int i = 0; i < rounds; i++)
{
grpc.Add(await RunPerfTest(urlGRPC, numRequests));
grpc.Add(await RunPerfTest(urlGRPC, numRequests));
grpc.Add(await RunPerfTest(urlGRPC, numRequests));
}
}
if (testcase == "rest")
{
for (int i = 0; i < rounds; i++)
{
rest.Add(await RunPerfTest(urlREST, numRequests));
rest.Add(await RunPerfTest(urlREST, numRequests));
rest.Add(await RunPerfTest(urlREST, numRequests));
}

}
if (testcase == "both")
{
for (int i = 0; i < rounds; i++)
{
grpc.Add(await RunPerfTest(urlGRPC, numRequests));
grpc.Add(await RunPerfTest(urlGRPC, numRequests));
grpc.Add(await RunPerfTest(urlGRPC, numRequests));

rest.Add(await RunPerfTest(urlREST, numRequests));
rest.Add(await RunPerfTest(urlREST, numRequests));
rest.Add(await RunPerfTest(urlREST, numRequests));
}

}

Console.WriteLine("--------------------------------------------------------------------");
Console.WriteLine("--------------------------------------------------------------------");
Console.WriteLine("--------------------------------------------------------------------");
Console.WriteLine($"GRPC {grpc.Sum() / grpc.Count}");
Console.WriteLine($"REST {rest.Sum() / rest.Count}");

}
}
```

```sh
ivanzaytsev@Ivans-MacBook-Air net8.0 % ./speedtest 1000 100 both
GRPC 0.30555692599999995
REST 0.3093026813333334
```