Designing and securing custom Web APIs

Custom Web APIs can be created using Visual Studio code or Visual Studio 2017. For creating Web APIs, the following programming languages are available:

• ASP.NET
• ASP.NET Core
• Angular
• React.js

Designing your Web API

This demo will be created using .NET Core Framework 2.0 and Visual Studio 2017. Begin by opening up Visual Studio 2017:

1. Click on File | New | Project and, in the new Project window, select ASP.NET Core Web Application. Name the project and click on OK:
2. A pop-up window opens up where you can select the Web APItemplate, selectASP.NET Core 2.0, and click on OK:

Creating a custom Web API from Visual Studio 2017

3. Add a Models folder in the Solution Explorer. Right-click your project name and select Add | New Folder. Add a TodoItem class by right-clicking the Models folder and click Add | Class.
4. Update the TodoItem class with the following code:

namespace PacktPubToDoAPI.Models
{
    public class TodoItem
    {
        public long Id { get; set; }
       ...