Getting Bad Request 400 error when uploading attachment through API call.

ramprosad

I am getting Bad Request 400 error when calling API to upload attachment in C#. However, Postman call is success. Thanks in advance for any help.

Humashankar

Try headers like Authorization, Content-Type, and Accept to triage this 

ramprosad

Hello Humashankar, thanks for your advice. I tried passing everything what post man is carrying over, still no luck.

 using (var requestMessage = new HttpRequestMessage(HttpMethod.Post, url))

 byte[] bytestream = File.ReadAllBytes("c:\\rams\\abc.pdf");

 using (var requestMessage = new HttpRequestMessage(HttpMethod.Post, url))

 {

   requestMessage.Headers.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", token);

   requestMessage.Headers.Add("Host", "api.smartsheet.com");

   requestMessage.Headers.Add("Accept", "*/*");

   requestMessage.Headers.Add("ccept-Encoding", "gzip,deflate,br");

   

   var form = new MultipartFormDataContent();

   var fileContent = new System.Net.Http.ByteArrayContent(bytestream);

   fileContent.Headers.ContentType = System.Net.Http.Headers.MediaTypeHeaderValue.Parse("multipart/form-data;boundary=--------------------------024810352705804951850594");

  

   fileContent.Headers.ContentLength = 1057403;

   fileContent.ReadAsStream();

   form.Add(fileContent, "file", "abc.pdf");

   requestMessage.Content = form;

   try

   {

     var response = StaticHttpClient.getHttpClient().SendAsync(requestMessage).Result;

     response.EnsureSuccessStatusCode();

     var responseContent = response.Content.ReadAsStringAsync().Result;

   }

   catch (Exception ex)

   {

     // log              

   }

 }

Brian_Richardson

I'm not super familiar with C#. But it looks like you're sending ContentType instead of Content-Type as the header.