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How to use Swagger XML Comments in an ASP .NET web app?

asked 2023-01-02 11:00:00 +0000

huitzilopochtli gravatar image

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answered 2021-12-01 04:00:00 +0000

nofretete gravatar image

To use Swagger XML comments in an ASP .NET web app, follow these steps:

  1. Install the Swashbuckle NuGet package:
  • Open the NuGet Package Manager in Visual Studio by right-clicking on the project and selecting "Manage NuGet Packages..."
  • Search for "Swashbuckle" and install the latest version.
  1. Configure Swashbuckle:
  • In the Startup.cs file, add the following code to the ConfigureServices method:
services.AddSwaggerGen(c =>
   c.SwaggerDoc("v1", new OpenApiInfo { Title = "My API", Version = "v1" });
   var xmlFile = $"{Assembly.GetExecutingAssembly().GetName().Name}.xml";
   var xmlPath = Path.Combine(AppContext.BaseDirectory, xmlFile);

This code configures Swashbuckle to generate Swagger documentation for version 1 of the API, and includes XML comments from the current assembly.

  1. Add XML comments to your code:
  • Add XML comments to your controller classes, methods, and parameters using the /// syntax. Here's an example:
/// <summary>
/// Gets an item by ID.
/// </summary>
/// <param name="id">The ID of the item to retrieve.</param>
/// <returns>The requested item.</returns>
public ActionResult<Item> GetById(int id)
   Item item = _context.Items.Find(id);
   if (item == null)
       return NotFound();
   return item;
  1. Run your application and navigate to the Swagger UI:
  • Start your application in debug mode.
  • Open a web browser and navigate to http://localhost:[port]/swagger/index.h…, where [port] is the port number your application is running on.
  • You should see the Swagger UI with documentation for your API, including the endpoints you defined and their XML comments.
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Asked: 2023-01-02 11:00:00 +0000

Seen: 9 times

Last updated: Dec 01 '21