In any type of ASP.NET Core projects we can find the Program.cs file, which defines the Program class of the same name and which essentially starts the application execution.
Testing ASP.NET Core Web APIs

Testing ASP.NET Core Web APIs

When designing and developing a wide variety of APIs using ASP.NET Core 2.1 Web API, it is important to understand that this is only the first step in creating a productive and stable solution. Having a stable environment for your solution is also very important. The key to a great solution is not only to build the API correctly, but also to thoroughly test it to eliminate the possibility of negative user experience while using your API.