Web API project

Work in progress.

Posted by Rishi Raj Gujadhur 6/26/2016

1. Create a default web api application using the template provided in visual studio.

2. Create a class named "Employee" in the model folder.

2.1 Add the following properties to the class Employee
public class Employee
        public int Id { get; set; }
        public string Name { get; set; }
        public string Email { get; set; }
        public float Salary { get; set; }

2.2 Build the project.

3. Create a new controller
3.1 Name it EmployeesController
3.2 Select Web API 2 Controller with actions, using Entity Framework
3.3 Select model class "Employee" (You previously created this class)
3.4 Create a new data context by clicking the + button
3.5 Click Add.

Access Entity Framework Migration for your project:
4. In the toolbar on visual studio ,Click Tools
4.1 Go to nuget package manager
4.2 Click on package manager console
4.3 In the console type: Enable-Migrations
4.4 Press enter on your keyboard

4.5 You might get the following message:
More than one context type was found in the assembly 'WebApi'.
To enable migrations for 'WebApi.Models.ApplicationDbContext', use Enable-Migrations -ContextTypeName WebApi.Models.ApplicationDbContext.
To enable migrations for 'WebApi.Models.WebApiContext', use Enable-Migrations -ContextTypeName WebApi.Models.WebApiContext.

As per the above instructions and your previously created Data Context created on step 3.4, type or copy and paste: Enable-Migrations -ContextTypeName WebApi.Models.WebApiContext

4.6 Press Enter

5 Add Additional migration by typing: Add-Migration InitialCreate

By now, you should have these tabs opened automatically on Visual Studio. 

5.1 Click on the Configuration.cs Tab
5.2 Go to the Seed method
5.3 Type:
            e=> e.Name,
            new Employee {Name = "Jim Wang", Email = "", Salary =1 },
            new Employee {Name = "Steve Sanderson", Email = "", Salary =1 }

We use the DbSet<T>.AddOrUpdate() helper extension method create/update seed data

5.4 The Employee keyword would be underlined red as shown below:

5.5 Left click the Employee keyword 
5.6 Press Ctrl and . together on your keyboard
5.7 Click on using YourApplicationName.Models or simply add the statement using YourApplicationName.Models; next to the other using statements on top.

5.8. On the packgage manager console type: Update-Database 
This would ensure that the database is populated with the new employees that we created previously.