How to send a Body type "Form Data" using POST in a HTTP Request

hello I have a problem I need to send some parameters to an http request, but the parameters must be of the form-data type, I have not managed to find out how to send the same, I know that in the activity comes the option to send a string, but I do not achieve know what is the format of it

1 Like

If you are referring to the Content-Type parameter, you can specify it in the Headers property of the HTTP request activity:
Name: Content-Type, Direction: In, Type: String, Value: "multipart/form-data"

If you want to send a file with the request, you can pass the filepath to the Attachments property.



This helped, thanks lot :slight_smile:


Hi @Mateus_Cruz
If i have some key-value text fields instead of files then how to set them inside http request?

Have you tried using the Parameters property? It gives you the key-value format that you mentioned.

Also, how are you doing the request in another tool? If you are specifying a JSON string in the body of the request, then it might be simpler to just do the same and pass that string to the Body property.

1 Like

There is some solution to this? I’m having same problem.

Trying to send one ‘application/pdf’ and one ‘text/plain’ into the body so this is and obvious multipart/form-data problem

I don’t know how to fill uipath HTTP Request activity properties to find a good HTTP Status 200

I’ve thought maybe putting in headers the content-type = multipart/form-data and then using parameters to send both, file and text buth the text parameter called “example” cannot be recognized. the request throws me an HTTP Status 400 - Required request part ‘example’ is not present

i want to pass form-data in http request how where i have to give this information in that activity ?

1 Like

hi @megharajky

did you got any solution for this ?

1 Like

Hi, I got this long back, but discussion went on another thread too so I posted solution there.
Refer this…


Hello Kalyan,
In this video, I use multipart/form-data:

0:20 cURL example
1:35 Send the command from POSTMAN
2:50 Implement the code in C#
4:20 Run the code
4:50 Visual Basic code VB.NET
6:20 New Process on UiPath Studio with Invoke Code
7:20 Imports Libraries in UiPath Studio
8:30 Run the Robot to Upload and Download the file

Dim client As HttpClient = New HttpClient()
client.BaseAddress = New Uri(“YOUR URL”)
client.DefaultRequestHeaders.Accept.Add(New MediaTypeWithQualityHeaderValue(“application/vnd.openxmlformats-officedocument.wordprocessingml.document”))
Dim byteArray As Byte() = Encoding.ASCII.GetBytes(“username:password”)
client.DefaultRequestHeaders.Authorization = New AuthenticationHeaderValue(“Basic”, Convert.ToBase64String(byteArray))Dim byteArray As Byte() = Encoding.ASCII.GetBytes(“username:password”)
// for OAUTH2
client.DefaultRequestHeaders.Add(“authorization”, “Bearer YOUR TOKEN”)
Dim request As MultipartFormDataContent = New MultipartFormDataContent()
request.Add(New StringContent(“tags”), “Bad”)
request.Add(New StringContent(“displayreferencetext”), “true”)
request.Add(New StringContent(“similaritythreshold”), “0.63”)
request.Add(New StreamContent(File.OpenRead(“C:\8A.docx”)), “file”, (New FileInfo(“C:\8A.docx”).Name))
Dim response As HttpResponseMessage = client.PostAsync("", request).Result
Dim strm As Stream = response.Content.ReadAsStreamAsync.Result
Dim doc As Byte()
Dim ms As MemoryStream = New MemoryStream()
doc = ms.ToArray()
File.WriteAllBytes(“C:\rpa\FORDOWNLOAD\rez.docx”, doc)

Cristian Negulescu