public override SystemTask.Task <InputFormatterResult> ReadRequestBodyAsync(InputFormatterContext context, Encoding encoding)
{
var request = context.HttpContext.Request;
using (var streamReader = context.ReaderFactory(request.Body, encoding))
using (JsonTextReader jsonReader = new JsonTextReader(streamReader))
{
var type = context.ModelType;
try
{
//TODO: parse json
//TODO: create a simple model to allow passthrough to validation because a missing element will throw wrong error here
var resource = new FhirJsonParser().Parse(jsonReader, type);
return(InputFormatterResult.SuccessAsync(resource));
}
catch (Exception ex)
{
//TODO: Remove Fhir Hack
if (ex != null)
{
//Assuming invalid json here, see above
return(InputFormatterResult.SuccessAsync(OperationOutcomeFactory.CreateInvalidRequest()));
}
return(InputFormatterResult.FailureAsync());
}
}
}
private void CheckRequestRequirements(HttpContext context)
{
var contentLength = context?.Request?.ContentLength;
var type = context?.Request?.Method;
if (new string[] { HttpMethods.Post, HttpMethods.Put }.Contains(type) && (!contentLength.HasValue || contentLength.Value == 0))
{
throw new HttpFhirException("Invalid Request", OperationOutcomeFactory.CreateInvalidRequest(), HttpStatusCode.BadRequest);
}
}
public override void OnActionExecuting(ActionExecutingContext context)
{
if (!context.ModelState.IsValid)
{
var error = context.ModelState.First();
var message = error.Value.Errors.FirstOrDefault()?.ErrorMessage;
OperationOutcome outcome = null;
if (error.Key == "InputFormatter")
{
outcome = OperationOutcomeFactory.CreateInvalidRequest();
}
else
{
outcome = OperationOutcomeFactory.CreateInvalidResource(error.Key, message);
}
throw new HttpFhirException(message, outcome, HttpStatusCode.BadRequest);
}
}
