Tutorial: Create a web API with ASP.NET Core

 https://docs.microsoft.com/en-us/aspnet/core/tutorials/first-web-api?view=aspnetcore-6.0&tabs=visual-studio

• Create a web API with controllers - TodoContext.cs added, Scaffold controller added
• Create a minimal web API
• Web API with MongoDB
• Web API with JavaScript
• Backend for mobile
• Publish to Azure API Management

Create with controller

httprepl supports debugging.

After posting an item, you can see it.

After posting another item, you can see the Location header.

TodoItemsController.cs >> return CreatedAtAction() returns this response with Location header.

Prevent over-posting - interesting,  The subset of a model is usually referred to as a Data Transfer Object (DTO), input model, or view model.

When using httprepl, make sure you connect first. Otherwise PUT operation does not work.

PUT Success - 204 no content

PUT Error - 405 method not allowed

PUT Error - 400 bad request

Before DTO (Data Transfer Object)

Before DTO (Data Transfer Object)

How to update code to use DTO

        [HttpGet]

        public async Task<ActionResult<IEnumerable<TodoItemDTO>>> GetTodoItems()

        {

            //return await _context.TodoItems.ToListAsync();

            return await _context.TodoItems

                .Select(x => ItemToDTO(x))

                .ToListAsync();

        }