How to change the Swagger default URL and use a custom one in C#?

How to change the Swagger default URL and use a custom one in C#?

To change the Swagger default URL and use a custom one in C#, you need to configure the Swagger middleware in your ASP.NET Core application.

Here's an example of how to change the Swagger default URL and use a custom one:

  1. Add the Swashbuckle.AspNetCore package to your project. You can do this using the NuGet Package Manager in Visual Studio or by running the following command in the Package Manager Console:

    Install-Package Swashbuckle.AspNetCore

  2. In your Startup.cs file, add the following code to configure the Swagger middleware:

    using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.OpenApi.Models;

public class Startup
{
    public IConfiguration Configuration { get; }

    public Startup(IConfiguration configuration)
    {
        Configuration = configuration;
    }

    public void ConfigureServices(IServiceCollection services)
    {
        services.AddSwaggerGen(c =>
        {
            c.SwaggerDoc("v1", new OpenApiInfo { Title = "My API", Version = "v1" });
        });
        // Other services configuration...
    }

    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
        // Other middleware configuration...

        app.UseSwagger();
        app.UseSwaggerUI(c =>
        {
            c.SwaggerEndpoint("/swagger/v1/swagger.json", "My API V1");
            c.RoutePrefix = "api/docs";
        });
    }
}

    This code adds the Swagger middleware to the application and configures it with a Swagger document and a Swagger UI endpoint. In this example, the endpoint is set to api/docs. You can change this to any value you like.

  3. Run your application and navigate to the custom Swagger URL you specified in the UseSwaggerUI method. For example, if you set the route prefix to api/docs, the URL would be http://localhost:5000/api/docs.

That's it! You should now be able to use your custom Swagger URL to view and interact with your API documentation.

Examples

  1. "Change Swagger default URL in ASP.NET Core"

    Code (Startup.cs):

    services.AddSwaggerGen(c =>
{
    c.SwaggerEndpoint("/swagger/v1/swagger.json", "Your API Name");
});

    Description: Update the Swagger endpoint in the AddSwaggerGen method in the Startup.cs file.

  2. "Use custom Swagger URL in ASP.NET Web API"

    Code (Global.asax.cs):

    GlobalConfiguration.Configuration
    .EnableSwagger(c => c.SingleApiVersion("v1", "Your API Name"))
    .EnableSwaggerUi("custom-swagger/{*assetPath}");

    Description: Define a custom Swagger URL using the EnableSwagger and EnableSwaggerUi methods in the Global.asax.cs file.

  3. "Change Swagger default URL in Swashbuckle.AspNetCore"

    Code (Startup.cs):

    app.UseSwaggerUI(c =>
{
    c.SwaggerEndpoint("/custom/swagger.json", "Your API Name");
});

    Description: Adjust the Swagger endpoint in the UseSwaggerUI method within the Configure method in the Startup.cs file.

  4. "Specify Swagger JSON URL in .NET Core MVC application"

    Code (Startup.cs):

    services.AddSwaggerGen(c =>
{
    c.SwaggerEndpoint("/api-docs", "Your API Name");
});

    Description: Set the Swagger JSON URL in the AddSwaggerGen method of the Startup.cs file.

  5. "Customize Swagger URL in NancyFx application"

    Code (Bootstrapper.cs):

    pipeline += ctx =>
{
    var basePath = ctx.Request.Url.BasePath;
    ctx.Response.AsRedirect($"{basePath}/custom/swagger-ui/index.html?url={basePath}/custom/swagger.json");
    return null;
};

    Description: Define a custom Swagger URL in a NancyFx application using the Bootstrapper.cs file.

  6. "Change Swagger URL for .NET Core API documentation"

    Code (Startup.cs):

    app.UseSwaggerUI(c =>
{
    c.RoutePrefix = "swagger";
    c.SwaggerEndpoint("/custom/swagger.json", "Your API Name");
});

    Description: Set the route prefix and Swagger endpoint in the UseSwaggerUI method within the Configure method in the Startup.cs file.

  7. "Specify Swagger JSON URL in Owin self-hosted API"

    Code (Startup.cs):

    var swaggerOptions = new SwaggerOptions
{
    Route = "/custom/swagger.json",
    JsonUrl = "/custom/swagger.json"
};

app.UseSwaggerUi(swaggerOptions);

    Description: Set the Swagger JSON URL and route in the UseSwaggerUi method within the Startup.cs file for an Owin self-hosted API.

  8. "Use custom Swagger URL in .NET Core 3.1 application"

    Code (Startup.cs):

    app.UseSwaggerUI(c =>
{
    c.SwaggerEndpoint("/swagger/v1/swagger.json", "Your API Name");
});

    Description: Adjust the Swagger endpoint in the UseSwaggerUI method within the Configure method in the Startup.cs file for .NET Core 3.1 application.

  9. "Custom Swagger JSON URL for ASP.NET Core MVC project"

    Code (Startup.cs):

    services.AddSwaggerGen(c =>
{
    c.SwaggerEndpoint("/custom/swagger.json", "Your API Name");
});

    Description: Set the Swagger JSON URL in the AddSwaggerGen method of the Startup.cs file for an ASP.NET Core MVC project.

  10. "Change Swagger URL for .NET 5 API documentation"

    Code (Startup.cs):

    app.UseSwaggerUI(c =>
{
    c.SwaggerEndpoint("/custom/swagger.json", "Your API Name");
});

    Description: Modify the Swagger endpoint in the UseSwaggerUI method within the Configure method in the Startup.cs file for a .NET 5 API.

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