AspNetCore.Docs/aspnetcore/includes/webApi/end.md

Implement the other CRUD operations

In the following sections, Create, Update, and Delete methods are added to the controller.

Create

Add the following Create method.

[!code-csharp]

The preceding code is an HTTP POST method, indicated by the [HttpPost] attribute. The [FromBody] attribute tells MVC to get the value of the to-do item from the body of the HTTP request.

The CreatedAtRoute method:

• Returns a 201 response. HTTP 201 is the standard response for an HTTP POST method that creates a new resource on the server.
• Adds a Location header to the response. The Location header specifies the URI of the newly created to-do item. See 10.2.2 201 Created.
• Uses the "GetTodo" named route to create the URL. The "GetTodo" named route is defined in GetById:

[!code-csharp]

Use Postman to send a Create request

• Set the HTTP method to POST
• Select the Body radio button
• Select the raw radio button
• Set the type to JSON
• In the key-value editor, enter a Todo item such as

{
	"name":"walk dog",
	"isComplete":true
}

• Select Send
• Select the Headers tab in the lower pane and copy the Location header:

The Location header URI can be used to access the new item.

Update

Add the following Update method:

[!code-csharp]

Update is similar to Create, but uses HTTP PUT. The response is 204 (No Content). According to the HTTP spec, a PUT request requires the client to send the entire updated entity, not just the deltas. To support partial updates, use HTTP PATCH.

Delete

Add the following Delete method:

[!code-csharp]

The Delete response is 204 (No Content).

Test Delete: