Liens

NSwag

Installation

# pour vscode
dotnet add package NSwag.AspNetCore
# Add to the project file *.csproj:
#  <ItemGroup> 
#    <PackageReference Include="NSwag.AspNetCore" Version="11.17.15" />

Configuration

Configuration Web API

Startup.cs

public void ConfigureServices(IServiceCollection services)
{
    services.AddSwaggerDocument();

public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
    app.UseOpenApi();
    app.UseSwaggerUi3();

Configuration MVC

Startup.cs

Problème avec IActionResult

NSwag utilise la réflexion pour obtenir le type de retour. Avec IActionResult il ne peut pas.

[HttpGet]
// utiliser SwaggerResponse
[SwaggerResponse(HttpStatusCode.OK, typeof(IReadOnlyList<ItemDto>))]
[SwaggerResponse(HttpStatusCode.BadRequest, typeof(void))]
// ou ProducesResponseType
[ProducesResponseType(typeof(IReadOnlyList<ItemDto>), StatusCodes.Status200OK)]
public IActionResult Get()

Swashbuckle

Installation

dotnet add package Swashbuckle.AspNetCore

Startup.cs

public void ConfigureServices(IServiceCollection services)
{
    services.AddControllers();
    services.AddSwaggerGen(c =>
    {
        c.SwaggerDoc("v1", new OpenApiInfo { Title = "EFWebApi", Version = "v1" });
    });
}

public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
    if (env.IsDevelopment())
    {
        app.UseDeveloperExceptionPage();
        app.UseSwagger();
        app.UseSwaggerUI(c => 
        {
            c.SwaggerEndpoint("/swagger/v1/swagger.json", "EFWebApi v1");
            c.RoutePrefix = string.Empty;  // serve the Swagger UI at the app's root (http://localhost:<port>/)
        });
    }

Usage

Controllers/ItemController.cs

[ApiController]
[Produces("application/json")]  // set the Media type
[Route("[controller]")]
public class ItemController : ControllerBase
{
    [HttpGet]
    [ProducesResponseType(typeof(IEnumerable<Item>), StatusCodes.Status200OK)]  // set the status code and the return type
    public IActionResult Get() { /* ... */ }
}

XML documentation

MyProject.csproj

<PropertyGroup>
  <GenerateDocumentationFile>true</GenerateDocumentationFile>
  <NoWarn>1701;1702;1705;1591</NoWarn>
</PropertyGroup>

Controllers/ItemController.cs

/// <summary>
/// Get the items.
/// </summary>
/// <remarks>
/// Sample request:
///
///     GET /item
///
/// </remarks>
/// <returns>The items</returns>
/// <response code="200">Returns the items</response>
[HttpGet]
[ProducesResponseType(typeof(IEnumerable<Item>), StatusCodes.Status200OK)]
public IActionResult Get() { /* ... */ }

Url

Url	Resource
http://localhost:<port>/swagger	swagger UI
http://localhost:<port>/swagger/v1/swagger.json	swagger json

Ouvrir le navigateur sur swagger

Dans un projet Web API avec Visual Studio Code, ouvrir le navigateur sur la page swagger.

.vscode\launch.json

{
    "configurations": [
        {
            "serverReadyAction": {
                "action": "openExternally",
                "pattern": "^\\s*Now listening on:\\s+(https?://\\S+)",
                "uriFormat": "%s/swagger"
            },
            // autre solution
            "launchBrowser": {
                "enabled": true,
                "args": "${auto-detect-url}",
                "windows": {
                    "command": "cmd.exe",
                    "args": "/C start ${auto-detect-url}/swagger/index.html?url=/swagger/v1/swagger.json#!/Items"
                }
            }

Paramètres optionnels

Swagger ne gère pas les paramètres optionnels s'ils font partie du chemin, il les considère comme des paramètres required.