Self hosting means running our ASP.Net Web API project in our own Web Server rather than via IIS. Here we are not building a complete Http Web server either. We’re simply using functionality.
Introduction
This article shows the walk through of self hosting a Web API...
Here we will see how to host a web API inside a console application.
- Step 1 : Create a New Project Open visual studio 2013 in Admin mode -> click on File -> New Project ->select Console Application
- Step 2 : Install Microsoft.AspNet.WebApi.SelfHost through Packager Manager console as shown below
Click on Tools--->Select Library Package Manager-->Package Manager Console and Type the following command
Install-Package Microsoft.AspNet.WebApi.SelfHost
- Step 3 : Now lets create Model and Controller
We will use the same Model and Controller from this
article
namespace SampleSelfHost
{
public class Student
{
public int Id { get; set; }
public string Name { get; set; }
public string Standard { get; set; }
public decimal Marks { get; set; }
}
}
Now add a public class named StudentsController . Derive this class from System.Web.Http.ApiController.
using SampleSelfHost;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Web.Http;
namespace SelfHost
{
public class StudentsController : ApiController
{
Student[] students = new Student[]
{
new Student { Id = 1, Name = "Sagar", Standard = "seventh", Marks = 60 },
new Student { Id = 2, Name = "Sachin", Standard = "seventh", Marks = 70 },
new Student { Id = 3, Name = "Dravid", Standard = "seventh", Marks = 90 },
new Student { Id = 4, Name = "Ramesh", Standard = "seventh", Marks = 90 },
new Student { Id = 5, Name = "Ganguly", Standard = "seventh", Marks = 90 },
new Student { Id = 6, Name = "Rahul", Standard = "seventh", Marks = 90 },
};
public IEnumerable<Student> GetAllStudents()
{
return students;
}
public Student GetStudentById(int id)
{
var Student = students.FirstOrDefault((p) => p.Id == id);
if (Student == null)
{
throw new HttpResponseException(HttpStatusCode.NotFound);
}
return Student;
}
public IEnumerable<Student> GetStudentsByStandard(string standard)
{
return students.Where(p => string.Equals(p.Standard, standard,
StringComparison.OrdinalIgnoreCase));
}
}
}
Now Lets Host a web API
Open Program.cs class file from the solution explorer
Add the Following Implementation
using System;
using System.Web.Http;
using System.Web.Http.SelfHost;
namespace SampleSelfHost
{
class Program
{
static void Main(string[] args)
{
var config = new HttpSelfHostConfiguration("http://localhost:8080");
//To determine which action to invoke, the framework uses a routing table. The Visual Studio project template for Web API creates a default route
config.Routes.MapHttpRoute(
"API Default", "api/{controller}/{id}",
new { id = RouteParameter.Optional });
using (HttpSelfHostServer server = new HttpSelfHostServer(config))
{
server.OpenAsync().Wait();
Console.WriteLine("Listening for HTTP requests.");
Console.WriteLine("(Please Run the ClientApp project to send requests).");
Console.WriteLine();
Console.WriteLine("You can hit Enter to quit.");
Console.ReadLine();
}
}
}
}
Now run the Application and make sure that Visual studio 2013 is opened in Administrator Mode otherwise you might get an error "HTTP could not register URL http://+:8080/"
The following output should appear
Conclusion
In this article we have seen how to host the web API. In the next part of this article we will see how to c
all Web API from a Client Application (C#)Reference
http://www.matlus.com/self-host-asp-net-web-api/