Swagger/OpenAPI Configuration

Configure Swagger/OpenAPI documentation for your API.

For complete reference, see Library Guide.

Quick Start

appsettings.json

{
  "affolterNET": {
    "Web": {
      "Swagger": {
        "Enabled": true,
        "Title": "My API",
        "Version": "v1",
        "Description": "API documentation for My Application"
      }
    }
  }
}

Configuration Options

SwaggerOptions

Property	Type	Default	Description
Enabled	bool	true (dev)	Enable Swagger UI and endpoint
Title	string	"API"	API title in Swagger UI
Version	string	"v1"	API version
Description	string	null	API description
RoutePrefix	string	"swagger"	URL prefix for Swagger UI

Common Patterns

Development Only

{
  "affolterNET": {
    "Web": {
      "Swagger": {
        "Enabled": true
      }
    }
  }
}

In production, set Enabled to false or remove the configuration.

Custom Route

{
  "affolterNET": {
    "Web": {
      "Swagger": {
        "Enabled": true,
        "RoutePrefix": "api-docs"
      }
    }
  }
}

Access at: https://your-api.com/api-docs

With Authentication

When authentication is enabled, Swagger UI will include the authorization header configuration for testing authenticated endpoints.

Controller Documentation

Use XML comments for API documentation:

/// <summary>
/// Gets all users
/// </summary>
/// <returns>List of users</returns>
/// <response code="200">Returns the list of users</response>
/// <response code="401">Unauthorized</response>
[HttpGet]
[ProducesResponseType(typeof(List<User>), 200)]
[ProducesResponseType(401)]
public IActionResult GetUsers() { ... }

Enable XML documentation in your .csproj:

<PropertyGroup>
  <GenerateDocumentationFile>true</GenerateDocumentationFile>
  <NoWarn>$(NoWarn);1591</NoWarn>
</PropertyGroup>

Troubleshooting

Swagger UI not loading

• Verify Enabled is true in configuration
• Check the RoutePrefix matches your expected URL
• Ensure no middleware is blocking the Swagger routes

Missing endpoints

• Confirm controllers are properly registered
• Check that routes are correctly attributed
• Verify authorization doesn't block discovery