all caps middleware

allCapsMiddleware.cs

using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using Microsoft.Owin;

namespace AllCapsMiddleware
{
    using AppFunc = Func<IDictionary<string,object>, Task>;
    public class AllCaps
    {
        private readonly AppFunc _next;

        public ResponseReadingMiddleware(AppFunc next)
        {
            this._next = next;
        }

        public async Task Invoke(IDictionary<string, object> env)
        {
            var ctx = new OwinContext(env);
            ctx.Response.Body = new CapsStream(ctx.Response.Body);
            await _next(env);
        }
    }
}