1. David Peace (Powersoft)
  2. PowerBuilder
  3. Friday, 19 January 2018 15:56 PM UTC

Hi Guys

I'm trying to post to a webservice and I'm struggling to get the right concepts for PowerBuilder.

The URL is https://pms.verticalbooking.com/mainstay/OTA_PMS.php

the Message format is:





         My Test Data



What is the best way to approach this?


 have tried using the following code and Rolands winhttp

// example HTTP POST in the style of the PostURL function

n_winhttp ln_http
String ls_URL, ls_title, ls_pathname, ls_filename
String ls_filter, ls_data, ls_mimetype, ls_response, ls_time
Blob lblob_data, lblob_response
Integer li_rc, li_fnum
ULong lul_length

lblob_data = blob('' + &
'   ' + &
'      uuid:bc12ff01-2329-f0dc-84e9-12ae9b579f32' + &
'      ' + &
'' + &
'3r799d6yq6' + &
'y3ppi58t20' + &
' + &
' + &
' + &
'   ' + &
'      ' + &
'         My Test Data' + &
' + &
' + &

ls_mimetype = ln_http.GetMIMEType(ls_pathname, lblob_data)

ls_URL  = "https://pms.verticalbooking.com/mainstay/OTA_PMS.php"
lul_length = ln_http.Postsoap(ls_URL, &
            lblob_data, ls_mimetype, lblob_response,'OTA_PMS')
If lul_length > 0 Then
    ls_response = String(lblob_response, EncodingAnsi!)
    ls_time = "Post Complete in " + &
        String(ln_http.Elapsed, "#,##0.####") + " seconds."
    MessageBox("PostURL Error #" + &
                    String(ln_http.LastErrorNum), &
                    ln_http.LastErrorText, StopSign!)
End If


Cheers David

David Peace (Powersoft) Accepted Answer Pending Moderation
  1. Tuesday, 23 January 2018 09:06 AM UTC
  2. PowerBuilder
  3. # 1

I woke up this morning with a brainwave. Blob encoding EncodingANSI!

I will still gladly try PB2017R2 when it comes out :)

Thanks to everyone for their input :)



There are no comments made yet.
Chris Pollach @Appeon Accepted Answer Pending Moderation
  1. Friday, 19 January 2018 19:07 PM UTC
  2. PowerBuilder
  3. # 2

Suggestion: Another alternative David might be to try & use the new HTTP Client object & its related methods in PB 2017 R2 coming out by the end of January, 2018.

  1. Armeen Mazda @Appeon
  2. Sunday, 21 January 2018 05:01 AM UTC
I think this is the only way to go since older versions of PowerBuilder don't support TLS 1.2!

  1. Helpful
  1. David Peace (Powersoft)
  2. Tuesday, 23 January 2018 08:42 AM UTC
I would love to, but I need to get this project up and running.

  1. Helpful
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Roland Smith Accepted Answer Pending Moderation
  1. Friday, 19 January 2018 18:00 PM UTC
  2. PowerBuilder
  3. # 3

I have another example called XmlHttp which you might want to try. 


WinHTTP makes calls to the API functions directly. XmlHttp is a wrapper around the Msxml2.XMLHTTP COM object. Msxml2.XMLHTTP is a standard part of Windows and is how websites implement AJAX background processing.


  1. Martin Mueller
  2. Sunday, 21 January 2018 16:59 PM UTC
Hi Roland,


I tried out your xmlhttp and got a problem. The website I try to connect to is protected with login and password. So I tried to modify the open event of the ole object

    oleHTTP.open(Upper(as_Method), as_Url, False)


    oleHTTP.open(Upper(as_Method), as_Url, False, "login_xxx", "password_xxx")

Now I get the response, that the user is unknown.

Do you have any ideas, where my fault is?

Thanks in advance



  1. Helpful
  1. David Peace (Powersoft)
  2. Tuesday, 23 January 2018 08:46 AM UTC
Hi Roland

I'm trying to make a SOAP call using HTTP post, the server gives be an error 500 with is not a lot of help. I have managed to use a SOAP test client to send and receive a correct message so is I can get the right structure to the message it should work.

Sadly my knowledge of low level HTTP messages is nil so I'm just guessing. The other annoying thing is that it only supports HTTPS so I cannot sniff the packets either. If I could compare the one that works and mine from PB I could see what I was doing wrong...

  1. Helpful
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Chris Pollach @Appeon Accepted Answer Pending Moderation
  1. Friday, 19 January 2018 16:39 PM UTC
  2. PowerBuilder
  3. # 4

Hi David;

   It could be pretty hard to help you are the "n_winhttp" object and "Postsoap" Command are not within the PB2017 realm.

Could you provide some more details around what you are using for this process?

Regards .. Chris

  1. Roland Smith
  2. Friday, 19 January 2018 17:57 PM UTC
n_winhttp is one of my code examples.

  1. Helpful
  1. Chris Pollach @Appeon
  2. Friday, 19 January 2018 19:05 PM UTC
Super ... Thanks for jumping in here on this Roland. Hopefully, you can straighten out David's issue(s)! 

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