Compile time error for services not configured at startup

[gxtaillon]

Hello,

Within the context of a webapi, there may be a number of injectable dependencies added to various scopes using calls such as

builder.Services.AddScoped<Interface, Implementation>();

Is it possible to get a compile time error when one fails to perform the above call?

An alternative to detecting a misconfigured Startup only at runtime would be to create a unit test recreating the service collection and manually checking if all expected services are present. However this is still vulnerable to forgetting to update the unit test. It also adds the pain of creating a viable environment (appsettings, etc.) for unit tests, which isn't needed when using mocks. eg:

var s = new WebHostBuilder().UseStartup<Startup>().Build();
s.Services.GetRequiredService(...)