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Resolved HTTPClient POST with Multipart Form

  1. How-to
0
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  1. iliyan iliev
    iliyan iliev
  2. PowerBuilder
  3. Tuesday, 11 July 2023 12:57 PM UTC

How to replicate this request

curl --location 'http://localhost:34020/api/processor' \
--header 'IE-INTERFACE_VERSION: 1.11' \
--header 'IE-SERVER_TYPE: BGExtractor' \
--header 'IE-JOB_ID: 42' \
--header 'IE-RESULT_TYPE: PNG' \
--header 'IE-PROCESSOR: Main' \
--form 'Source=@"/C:/Users/cyriaksh/Pictures/Faces/nina_hibsch.jpg"' \
--form 'Background=@"/C:/Users/cyriaksh/Pictures/1pxWhite.png"'
  1. Client
  2. Enhancement Request
  3. HTTPClient
  4. REST
Events of the Compress Object
LoadWithDotNetCore returns -19
Accepted Answer
Andreas Mykonios
Andreas Mykonios Accepted Answer Pending Moderation
  1. Tuesday, 11 July 2023 13:14 PM UTC
  2. PowerBuilder
  3. # Permalink

Hi.

Take a look at the following conversation: HTTPClient (appeon.com).

Andreas.

Comment
René Ullrich
  1. René Ullrich
  2. Tuesday, 11 July 2023 13:53 PM UTC
One more hint: Because you have to send two files you need an additional section separated by the "Boundary".
  1. Helpful 3
iliyan iliev
  1. iliyan iliev
  2. Wednesday, 12 July 2023 11:35 AM UTC
Files who i send NOT BASE64. could this be a problem?!
  1. Helpful
René Ullrich
  1. René Ullrich
  2. Wednesday, 12 July 2023 11:55 AM UTC
No. You can send data and files as blob (as shown in the linked example).
  1. Helpful 1
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Responses (2)
iliyan iliev
iliyan iliev Accepted Answer Pending Moderation
  1. Thursday, 13 July 2023 12:55 PM UTC
  2. PowerBuilder
  3. # 1 
long ll_FileNum
blob blb_file_source,blb_boundary,blb_terminus,blb_multipart,blb_file_bg
integer li_rc,li_ResponseStatusCode
HTTPClient lnv_HttpClient
string ls_endpoint ,  ls_file, ls_ResponseBody,ls_ResponseStatusMessage


li_ResponseStatusCode = 0
ls_ResponseBody = ''
ls_ResponseStatusMessage = ''

// Hard code the file name and endpoint for testing
ls_file = 'D:\pics\vesko.jpg'
ls_endpoint = 'http://localhost:34020/api/processor'
// Create a boundary marker for the multipart blob
string ls_Boundary = "$$$Boundary$$$"
// Read the file into a blob
blb_file_source = filetoblob(ls_file)
// Create component blobs
blb_boundary = blob('~r~n--' + ls_Boundary + '~r~n', EncodingUTF8!)
blb_file_source = blob( 'Content-Disposition: form-data; name="Source"; filename="vesko.jpg"~r~n' + "Content-Type: image/jpg~r~n~r~n", EncodingUTF8!) + blb_file_source
ls_file =  'D:\pics\dot.png'
blb_file_bg = filetoblob(ls_file)
blb_file_bg = blob( 'Content-Disposition: form-data; name="Background"; filename="dot.png"~r~n' + "Content-Type: image/pgn~r~n~r~n", EncodingUTF8!) + blb_file_bg
blb_terminus = blob('~r~n--' + ls_Boundary + '--~r~n', EncodingUTF8!)
// Concatenate blobs into a single multipart blob
blb_multipart = blb_boundary + blb_file_source+ blb_boundary+blb_file_bg+ blb_terminus
// Send the request
lnv_HttpClient = create HTTPClient

lnv_httpClient.SetRequestHeader("Content-Type", "multipart/form-data; boundary=" + ls_BOUNDARY)
lnv_httpClient.SetRequestHeader("Accept-Encoding","gzip, deflate, br")
lnv_httpClient.SetRequestHeader("Connection","keep-alive")
lnv_httpClient.SetRequestHeader("IE-INTERFACE_VERSION","1.11")
lnv_httpClient.SetRequestHeader("IE-SERVER_TYPE","BGExtractor")
lnv_httpClient.SetRequestHeader("IE-JOB_ID","111")
lnv_httpClient.SetRequestHeader("IE-RESULT_TYPE","JPG")
lnv_httpClient.SetRequestHeader("IE-PROCESSOR","Main")
li_rc = lnv_httpClient.SendRequest('POST', ls_endpoint, blb_multipart)
// obtain the response data
if li_rc = 1 then
	li_ResponseStatusCode = lnv_HttpClient.GetResponseStatusCode()
	ls_ResponseStatusMessage = lnv_HttpClient.GetResponseStatusText()
	lnv_HttpClient.GetResponseBody(ls_ResponseBody, EncodingUTF8!)
	if li_ResponseStatusCode = 200 then
		MessageBox('Upload Successfull', ls_ResponseBody)
	else
		MessageBox('Upload Failed', ls_ResponseBody)
	
	end if
	
else
	MessageBox('HTTP Error', 'Error calling ' + ls_endpoint + '. Return Code ' + string(li_rc))
end if

Rest service give me error 406 - not acceptable ?! What is wrong ?!

Comment
Arnd Schmidt
  1. Arnd Schmidt
  2. Thursday, 13 July 2023 15:53 PM UTC
Content-Type: image/pgn ?
  1. Helpful
Daryl Foster
  1. Daryl Foster
  2. Friday, 14 July 2023 00:54 AM UTC
I agree with Arnd, that would be a good place to start. Your Content-Type in this line should be image/png, not image/pgn



blb_file_bg = blob( 'Content-Disposition: form-data; name="Background"; filename="dot.png"~r~n' + "Content-Type: image/pgn~r~n~r~n", EncodingUTF8!) + blb_file_bg



Another difference between your code and your curl example is your are setting the IE-RESULT_TYPE header to JPG in your code but PNG in your curl call
  1. Helpful
iliyan iliev
  1. iliyan iliev
  2. Friday, 14 July 2023 07:12 AM UTC
Thanx :) Syntax Error :) Is works :)
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