Adding XML Formatting to a Web API Controller

A .NET API project will return JSON by default but sometimes you need something else.  By adding a new input and output formatter, you can accomplish this.  The ConfigureServices function in the Startup.cs file can be changed with the following code:

            services.AddMvc(options =>
            {
                options.InputFormatters.Add(new XmlSerializerInputFormatter(options));
                options.OutputFormatters.Add(new XmlSerializerOutputFormatter());
                options.OutputFormatters.Add(new StringOutputFormatter());
            });


You will also need to be using Microsoft.AspNetCore.Mvc.Formatters.


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