HTTP Request - Binary Body Format

[mateusz.wojcik]

Hi
I want to attach a zip file using API. TO do this I need a zip file in binary format. This is how it looks in Postman

I tried to convert file using: Convert.ToBase64String(File.ReadAllBytes (“FilePath”))

And pass it in Options of HTTP Request:
Body: FileText
Body Format: “application/binary”

Do you know how to do this in UiPath?

Kind regards

[marian.platonov]

Check this example https://uipath-survey.secure.force.com/CaseView/articles/Knowledge/How-to-use-HTTP-Request-activity-to-update-a-Klipfolio-Data-Source-Using-A-CSV-File?lang=en_US and adapt it based on your case.

Also, check this example Posting Zip files with HTTP Request - #2 by manderss

[mateusz.wojcik]

Hi,

Thank you for those links

I tried to use C# code but without success
I have to changed it because I use simple authentication not bearer token.

I get the following error:

Do you know what is causing the error?

[marian.platonov]

It seems that you need to try to import the RestSharp.Authenticators namespace to recognize HttpBasicAuthenticator

That namespace should be present in the RestSharp dependency.

Reference: restsharp - What is wrong with a HttpBasicAuthenticator - Stack Overflow

[mateusz.wojcik]

@marian.platonov

RestSharp.Authenticators

I have imported the namespace

I changed the code a little
var client = new RestSharp.RestClient(postEndpoint);
client.Authenticator = new HttpBasicAuthenticator(“UserAdam”, “PolskaPany1410”)’
client.Timeout = -1;
var request = new RestSharp.RestRequest(RestSharp.Method.POST);
request.AddHeader(“Content-Type”, “application/zip”);
request.AddParameter(“application/zip”, System.IO.File.ReadAllBytes(filePath), RestSharp.ParameterType.RequestBody);
RestSharp.IRestResponse response = client.Execute(request);
ResponseContent = response.Content.ToString();

Now I have no error but nothing happens after code is process. Attachment is not uploaded and I receive empty response.

[mateusz.wojcik]

I get the error Message from response.
ResponseContent = response.ErrorMessage.ToString();

It is the following:
“The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel.”

[marian.platonov]

This is an internal network error.

Check these solutions:

Transport Layer Security (TLS) connections might fail or timeout when...

• Upgrade windows machine to the latest patch

• If the Rest application is having an SSL certificate, you need to trust the SSL sign self-certificate first then only you can able to connect IIS SSL - How to Trust a Self Signed Certificate - YouTube

• Try to disable the certificate verification in your machine or not verify the certificate in your custom code

[mateusz.wojcik]

@marian.platonov thank you for your help.

Code work properly now. I attach the code below:

System.Net.ServicePointManager.ServerCertificateValidationCallback =
(sender, cert, chain, sslPolicyErrors) => true;

var client = new RestSharp.RestClient(postEndpoint);
client.Authenticator = new HttpBasicAuthenticator(“UserAdam”, “TopSikret”);
client.Timeout = -1;
var request = new RestSharp.RestRequest(RestSharp.Method.POST);
request.AddHeader(“Content-Type”, “application/zip”);
request.AddHeader(“Content-Disposition”, “attachment;filename=Witcher3.zip”);
request.AddParameter(“application/zip”, System.IO.File.ReadAllBytes(filePath), RestSharp.ParameterType.RequestBody);
RestSharp.IRestResponse response = client.Execute(request);
ResponseContent = response.Content.ToString();