Four Js Development Tools Forum

Hello,

can we use the method com.HTTPRequest.doFormEncodedRequest to send binary data (jpg) using POST method like CURL?

example in CURL:
 'curl -v -X POST -H "multipart/form-data" --form "image=@/tmp/2.jpg"  "http://PSKEY:@psdomain.com/api/images/products/984"' (note the @ meaning binary content for the file /tmp/2.jpg)

we are connecting with PrestaShop WebService succesfully using com.HTTPRequest + XML (products, customers,..etc) but no way to upload binary images (it works perfect with CURL command). We try a lot of combinations (HTTPPart class, Diferent headers... and so on) but no success.

¿any idea?
Thanks!

Hi,

 To send a file in a multipart request, you have to use com.HTTPPart.CreateAttachment() if it is not the main part, and use one of the doXXXRequest() methods for the main part.

But in your case, you have only one part, so it must be handled as the main part via the doDataRequest() method, and notify the API to perform multipart anyway with the com.HTTPRequest.setMultipart() method.

This gives something like following :

IMPORT COM

CONSTANT SERVER_URL = "http://host:port/XXX"
CONSTANT FILE_NAME  = "my_filename.jpg"

MAIN
  DEFINE req  com.HTTPRequest
  DEFINE resp com.HTTPResponse
  DEFINE blob BYTE

  # Create Request
  LET req = com.HTTPRequest.Create(SERVER_URL)
  CALL req.setMethod("POST")

  # Switch to multipart
  CALL req.setMultipartType("mixed",NULL,NULL)
 
  # Load main part as a blob
  LOCATE blob IN MEMORY
  CALL blob.readFile(FILE_NAME)

  # Set right content-type
  CALL req.setHeader("Content-Type","image/jpg")
 
  # Perform request
  CALL req.doDataRequest(blob)
 
  # Process response
  LET resp = req.getResponse()
  DISPLAY "HTTPStatus : ",resp.getStatusCode()
 
END MAIN

Does this help  ?

Frank

Hello Frank,

I tried this before posting without success, the problem is that the server was expecting the string 'image=' before the binary content and I don¡t find any way to do that.

I registered bug #GWS-438 : Sending only one file in a multipart request doesn't set the Content-Disposition header.

You can maybe try to force that header as following :

CALL req.setHeader("Content-Disposition","form-data; name=\"image\"")

But I'm not sure the server understand that.

Frank

P.S: In my previous sample I wrote mixed as multipart type but it is form-data

I did it yesterday and it doesn't work.