public static async Task PrepareRequestBody(HttpRequest request)
{
if (!request.Body.CanSeek)
{
request.EnableBuffering();
await StreamHelperExtensions.DrainAsync(request.Body, CancellationToken.None);
}
request.Body.Seek(0L, SeekOrigin.Begin);
}
/// <summary>
///
/// </summary>
/// <param name="context"></param>
/// <param name="encoding"></param>
/// <returns></returns>
public override async Task <InputFormatterResult> ReadRequestBodyAsync(InputFormatterContext context, Encoding encoding)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
if (encoding == null)
{
throw new ArgumentNullException("encoding");
}
var request = context.HttpContext.Request;
if (!request.Body.CanSeek)
{
HttpRequestRewindExtensions.EnableBuffering(request);
await StreamHelperExtensions.DrainAsync(request.Body, CancellationToken.None);
request.Body.Seek(0L, SeekOrigin.Begin);
}
using (TextReader textReader = context.ReaderFactory(request.Body, encoding))
{
var modelType = context.ModelType;
if (modelType.IsArray)
{
var itemType = modelType.GetElementType();
var arr = new ArrayList();
while (true)
{
var line = textReader.ReadLine();
if (string.IsNullOrEmpty(line))
{
break;
}
var obj = GetModel(line, itemType);
arr.Add(obj);
}
var modelList = arr.ToArray(itemType);
return(await InputFormatterResult.SuccessAsync(modelList));
}
else if (typeof(IEnumerable).IsAssignableFrom(modelType))
{
var itemType = modelType.GenericTypeArguments[0];
var listType = typeof(List <>).MakeGenericType(itemType);
IList modelList = (IList)Activator.CreateInstance(listType);
while (true)
{
var line = textReader.ReadLine();
if (string.IsNullOrEmpty(line))
{
break;
}
var obj = GetModel(line, itemType);
modelList.Add(obj);
}
return(await InputFormatterResult.SuccessAsync(modelList));
}
else
{
var obj = GetModel(textReader.ReadLine(), modelType);
return(await InputFormatterResult.SuccessAsync(obj));
}
}
}