This is a basic ASP.NET CORE WEB API application with using in memory database.

There is a kind of bookshelf in the application.

You can add a new book or update/delete a current one. You can bring all books or one of them.

You can use swagger or postman for these operations.

Please find some outcomes below.

getAllBooks:

getOneBookById:

post_Request:

post_Response:

new_response_of_getAllBook:

Postman Example