Getting Started With ASP.NET CORE 1.0

Introduction

 

In this article, I will explain how to install .NET Core tools preview for Visual Studio and how to print “Hello World” in the latest ASP.NET Core 1.0.

 

Step 1

 

First download Visual Studio 2015 with Update 3 through the link click here.

 

Step 2

 

Go to Install .NET Core tools preview for Visual Studio. This .NET Core tools adds support for .NET Core projects in Visual Studio 2015.


Step 3

 

This is really interesting. Open Visual Studio 2015 and create new Project.

Open Templates – > Visual C# -> Click .NET Core Category and you can see “ASP.NET Core Web Application” template.



Step 4 

 

Select Empty Templates ( based on your requirement ) in ASP.NET Core Templates Category if you are going to host the app in Microsoft Azure Service and check in the “Host in the cloud option”.



Step 5

 

Open “Startup.cs” class in “HelloWorldDotnetCore” project folder. 



Step 6

 

We are creating mini middle ware Application, using lambda expression in “app.Run”. This piece of code is creating “Hello World”. 

 

C# Code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;

namespace HelloWorldDotnetCore
{
    public class Startup
    {
        // This method gets called by the runtime. Use this method to add services to the container.
        // For more information on how to configure your application, visit http://go.microsoft.com/fwlink/?LinkID=398940
        public void ConfigureServices(IServiceCollection services)
        {
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
        {
            loggerFactory.AddConsole();

            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
           app.Run(async (context) =>
            {
                await context.Response.WriteAsync(" Hello World! ");
            });

        }
    }
}

Output 1

 

 

Step 7

 

“app.run” doesn’t work in .NET Core followed by using “app.Use”. It will pass two parameters and add the next middleware content In .NET Core. 

 

C# Code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;

namespace HelloWorldDotnetCore
{
    public class Startup
    {
        // This method gets called by the runtime. Use this method to add services to the container.
        // For more information on how to configure your application, visit http://go.microsoft.com/fwlink/?LinkID=398940
        public void ConfigureServices(IServiceCollection services)
        {
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
        {
            loggerFactory.AddConsole();

            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            app.Use(async (context, next) =>
            {
                await context.Response.WriteAsync("Hello World!!");
                await next();
            });

            app.Run(async (context) =>
            {
                await context.Response.WriteAsync(" Welcome to Dotnet Core ");
            });

        }
    }
}

Output 2

 

 

Reference

• Tech Blog Content 
• Pluralsight
  

Conclusion

 

We learned how to Install .NET Core tools preview for Visual Studio and how to print “Hello World” in the latest ASP.NET Core 1.0.