Testing a .NET Core Web API RESTful Web Service Application

To test the .NET Core Web API project using Visual Studio, perform the following steps:

  1. Set the project as a startup project. To do this, in Solution Explorer, right-click the project and click Set as StartUp Project.

  2. Press F5 and by default, you can test the interface in the Swagger UI that is present in the browser.

  3. To start the application from the Kestrel web server instead, perform the following steps:

    Note: By default, the .NET Core Web API project uses IISExpress as a reverse proxy.

    1. On the Visual Studio toolbar, from the IISExpress list, select the project name (for example, WebAPICore).

    2. From the project name list, select Web Browser (Internet Explorer), and then click either Google Chrome or Microsoft Edge.

      Note: By default, the web browser is set to Internet Explorer.

    3. From the Debug list, click Start Debugging.

      The Swagger Test Client page appears.

    4. Click the Try it out option at each end point level and fill in the request parameter values.

    5. Click Execute to perform the operations.

    6. When you complete testing, on the Visual Studio toolbar, from the Debug list, click Stop Debugging.