Is there a way to get the 400 respons message and the response JSON with .Net 4 in CSIDE?

connav · 2021-07-08

Hey I use the following to send a json to a server. The problem is, when an wrong formatted JSON is send, i only get the Message "400 Invalid [...]" , while the server is sending the wrong JSON (with some notes) and the 400 errorcode back. Any ideas how i get the Json (the one with notes)?

// Authorization
HttpWebRequest := HttpWebRequest.HttpWebRequest;
HttpWebRequest :=  HttpWebRequest.Create('*URL From Server*');
HttpWebRequest.ContentType := 'application/json';
HttpWebRequest.Method := 'POST';
HttpWebRequest.Headers.Add('Authorization',BearerTok);

// Create JSON
AddBodyAsTextWithEncoding(HttpWebRequest,GetArticelExample, Encoding.UTF8);

// Get response
HttpWebResponse := HttpWebResponse.HttpWebResponse;
HttpWebResponse := HttpWebRequest.GetResponse;
HttpResStatus := HttpWebResponse.StatusCode();

// Read response
CLEAR(Response);
  ResStream := HttpWebResponse.GetResponseStream();
  ResStreamReader := ResStreamReader.StreamReader(ResStream,TextEncoding.UTF8);
  Response := ResStreamReader.ReadToEnd();
  


HttpWebResponse.Close; 
HttpWebResponse.Dispose;

Var
HttpWebRequest DotNet System.Net.HttpWebRequest.'System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089';
HttpWebResponse DotNet System.Net.HttpWebResponse.'System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089';
ResStream DotNet System.IO.Stream.'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089';
HttpResStatus Integer ;

AlexDen · 2021-07-09

Hi,

Put this line into TRY function:

LOCAL [TryFunction] GetWebResponse(VAR HttpWebRequest : DotNet "System.Net.HttpWebRequest";VAR HttpWebResponse : DotNet "System.Net.HttpWebResponse")
CLEARLASTERROR;
HttpWebResponse := HttpWebRequest.GetResponse;

Add function to catch an exception:

GetWebResponseError(VAR HttpWebResponse : DotNet "System.Net.HttpWebResponse") : Text
Exception : DotNet System.Exception.'mscorlib'	
WebException: DotNet System.Net.WebException.'System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'	
***
Exception := GETLASTERROROBJECT;
WebException := Exception.GetBaseException;
IF ISNULL(WebException) THEN
  EXIT(Exception.Message);

HttpWebResponse := WebException.Response;
EXIT(WebException.Message);

And handle an exception:

IF NOT GetWebResponse(HttpWebRequest, HttpWebResponse) THEN
  ErrorMsgText := GetWebResponseError(HttpWebResponse);

IF NOT ISNULL(HttpWebResponse) THEN BEGIN
  ResStream := HttpWebResponse.GetResponseStream();
  IF HttpWebResponse.StatusCode <> 200 THEN BEGIN
    IF ErrorMsgText = '' THEN
      ErrorMsgText := HttpWebResponse.StatusDescription;
    // Put your code to handle your exception
    ...
  END;
  ...
END;

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Is there a way to get the 400 respons message and the response JSON with .Net 4 in CSIDE?

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