Http request activitty- binary format body

[jack.chan]

the api im using accepts image file upload in binary format (see postman screenshot below)

how do i do this using HTTP Request activity in uipath?

[Yoichi]

Hi,

I asked similar question to UIPath guys 2 years ago, however the answer was “HTTP request activity doesn’t support octet-stream request” and showed me workaround code.
The latest version might be able to do it, but I’ll share it as the following.

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1. add the “System.Net.Http” package in the package manager
2. Use the “Invoke Code” activity with C#

  // HttpClient is intended to be instantiated once per application, rather than per-use. See Remarks.
  HttpClient client = new HttpClient();
  // Call asynchronous network methods in a try/catch block to handle exceptions.
  try	
  {
	 ByteArrayContent content = new ByteArrayContent(bytes);
	 content.Headers.Add("content-type", "application/octet-stream");
	 HttpResponseMessage response = client.PostAsync(url, content).Result;
     response.EnsureSuccessStatusCode();
     string responseBody = response.Content.ReadAsStringAsync().Result;
     // Above three lines can be replaced with new helper method below
     // string responseBody = await client.GetStringAsync(uri);

     Console.WriteLine(responseBody);
  }
  catch(HttpRequestException e)
  {
     Console.WriteLine("\nException Caught!");	
     Console.WriteLine("Message :{0} ",e.Message);
  }

Note that this code is a minor tweak of the Microsft Docs Sample.
The arguments to define are bytes which is an Array<Byte> and url which is a string .

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Hope this helps you.

Regards,

[jack.chan]

thanks a lot