gistfile1.txt

        // New code //

        [AttributeUsage(AttributeTargets.Method)]
        public class ResponseStatusAttribute : Attribute
        {
            public ResponseStatusAttribute(params HttpStatusCode[] statusCodes)
            {
                StatusCodes = statusCodes;
            }
            public HttpStatusCode[] StatusCodes { get; set; }
        }

        //////////////

        [SuppressMessage("Microsoft.Design", "CA1031:DoNotCatchGeneralExceptionTypes", Justification = "The exception is recorded as ErrorMessages.")]
        private static HelpPageApiModel GenerateApiModel(ApiDescription apiDescription, HelpPageSampleGenerator sampleGenerator)
        {
            HelpPageApiModel apiModel = new HelpPageApiModel(); // Edit HelpPageApiModel to add new properties
            apiModel.ApiDescription = apiDescription;

            // New code //
            ResponseStatusAttribute customAttribute = apiDescription.ActionDescriptor.GetCustomAttributes<ResponseStatusAttribute>().FirstOrDefault();
            if (customAttribute != null)
            {
                apiModel.StatusCodes = customAttribute.StatusCodes;
            }
            //////////////

            try
            {
                foreach (var item in sampleGenerator.GetSampleRequests(apiDescription))
                {
                    apiModel.SampleRequests.Add(item.Key, item.Value);
                    LogInvalidSampleAsError(apiModel, item.Value);
                }

                foreach (var item in sampleGenerator.GetSampleResponses(apiDescription))
                {
                    apiModel.SampleResponses.Add(item.Key, item.Value);
                    LogInvalidSampleAsError(apiModel, item.Value);
                }
            }
            catch (Exception e)
            {
                apiModel.ErrorMessages.Add(String.Format(CultureInfo.CurrentCulture, "An exception has occurred while generating the sample. Exception Message: {0}", e.Message));
            }

            return apiModel;
        }

    // Add something like the following to HelpPageApiModel.cshtml //
    @if (Model.StatusCodes != null)
    {
        <h2>Status Codes</h2>
        <ul>
        @foreach (var status in Model.StatusCodes)
        {
            <li>@status</li>
        }
        </ul>
    }
    //////////////