AspNetCoreWebApiSample / Output Formatter

Startup.cs

using System;
using Microsoft.AspNetCore.Mvc.Formatters;
using Microsoft.Extensions.DependencyInjection;

namespace SampleWebApi
{
    public class Startup
    {
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddCors();
            // テキスト形式を無効化、XML 形式を有効化
            services.AddMvc(options =>
            {
                options.OutputFormatters.RemoveType<StringOutputFormatter>();
                options.OutputFormatters.Add(new XmlSerializerOutputFormatter());
            });
            // XML 形式を有効化
            //services.AddMvc().AddXmlSerializerFormatters();

            // 以下略
        }
    }
}