Last week .NET Core was released, and the first thing I tried to solve was how to Add Swagger to your .NET Core Web API:

Dependencies

At the time of writing you should add the following dependency to your project.json file

1    "Swashbuckle": "6.0.0-beta901"

Using statement

In your Startup class add the following using statement

1    using Swashbuckle.Swagger.Model;

Add Swagger as a service

In your Startup class add the following code to the ConfigureServices method

 1    // This method gets called by the runtime. Use this method to add services to the container.
 2    public void ConfigureServices(IServiceCollection services)
 3    {
 4       ...
 5
 6       services.AddSwaggerGen();
 7       services.ConfigureSwaggerGen(options =>
 8       {
 9           options.SingleApiVersion(new Info
10           {
11               Version = "v1",
12               Title = "Your API title here",
13               Description = "Your API description here",
14               TermsOfService = "Your API terms of service here"
15           });
16       });
17    }

Add Swagger to the HTTP request pipeline

And finally add the following lines to the Configure method of your Startup class

1    // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
2    public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
3    {
4        ...
5
6        app.UseSwagger();
7        app.UseSwaggerUi();
8    }

And that’s it you are ready to go!

Hope it helps!