Program.cs

varbuilder=WebApplication.CreateBuilder();
builder.Services.AddSingleton<Content>();

varapp=builder.Build();

//Pay attention to the order of the parameter passed.
//If your parameter is distinct, the order does not matter, As you can see here we put Greeting
//at the end of the parameter passing although in the constructor Greeting was the second on the parameter list.
//However if you pass multiple parameters of the same type, the order matters. 
app.UseMiddleware<TerminalMiddleware>("Cairo","Dody",newGreeting());

app.Run();

publicclassContent
{
publicstringSayHello()=>"Hello world";
}

publicclassGreeting
{
publicstringGreet()=>"Good morning";
}


publicclassTerminalMiddleware
{
readonlyContent_content;
readonlystring_city;
readonlyGreeting_greet;
readonlystring_name;

publicTerminalMiddleware(RequestDelegatenext,Greetinggreet,stringcity,Contentcnt,stringname)
{
//We are not using the parameter next in this middleware since this middleware is terminal
_content=cnt;
_city=city;
_greet=greet;
_name=name;
}
publicasyncTaskInvoke(HttpContextcontext)
{
awaitcontext.Response.WriteAsync($"{_greet.Greet()}{_name}, {_content.SayHello()} from {_city}");
}
}