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Resolved Consuming web service proxies with HTTPClient

  1. How-to
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  1. Hannu Pikkarainen
    Hannu Pikkarainen
  2. PowerBuilder
  3. Wednesday, 15 May 2024 14:18 PM UTC

Hi,

I have created an application that uses SOAP interface about 15-20 years ago and it has worked without problems. I created service and proxies from WSDL and in code used it

SoapConnection conn
conn = create SoapConnection

rval = conn.CreateInstance(px_service,"jtj_jasentuontirajapintaservice",str_endpoint) 

Now I'm trying to convert it to use HTTPClient using code

inv_http = CREATE HTTPCLIENT
rval = inv_http.CreateInstance(px_service,"jtj_jasentuontirajapintaservice",str_endpoint)

But the compiler complains Unkown function name : createinstance.

What am I doing wrong?

BR, Hannu

  1. HTTPClient
  2. SOAP
  3. Web Service
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Responses (4)
Andreas Mykonios
Andreas Mykonios Accepted Answer Pending Moderation
  1. Wednesday, 15 May 2024 14:46 PM UTC
  2. PowerBuilder
  3. # 1

Hi.

That's because httpclient doesn't have such a function. You created your object using the create statement. Now you are ready to do all the settings needed to the client, and the do a request (using probably sendrequest function). You would then expect a response, again, using using one of the getresonse* functions.

I suggest you read carefully the documentation provided for the httpclient (HTTPClient object - - Objects and Controls (appeon.com)).

Andreas.

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Hannu Pikkarainen
  1. Hannu Pikkarainen
  2. Wednesday, 15 May 2024 14:55 PM UTC
Previously I have used that proxy to create the XML, which is quite complicated one. Is there any I could still use that proxy with HTTPClient?
  1. Helpful
Armeen Mazda @Appeon
  1. Armeen Mazda @Appeon
  2. Wednesday, 15 May 2024 16:57 PM UTC
No, HTTPClient doesn't support that. Please follow the documentation links that Andreas and Chris provided to you.
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Chris Pollach @Appeon
Chris Pollach @Appeon Accepted Answer Pending Moderation
  1. Wednesday, 15 May 2024 16:23 PM UTC
  2. PowerBuilder
  3. # 2

Hi Hannu;

  FYI:  https://community.appeon.com/index.php/articles-blogs/tutorials-articles/2-powerbuilder/236-call-soap-web-services-using-httpclient-object

HTH

Regards .. Chris

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Hannu Pikkarainen
Hannu Pikkarainen Accepted Answer Pending Moderation
  1. Thursday, 16 May 2024 04:53 AM UTC
  2. PowerBuilder
  3. # 3

Thanks for the advices, they were helpful.

One more problem : Is it possible to use my old web service proxies and extract the XML from them? Or do I have start using PBDOM tools to create the XML?

BR, Hannu

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Hannu Pikkarainen
  1. Hannu Pikkarainen
  2. Thursday, 16 May 2024 06:15 AM UTC
Actually I have created variables based on web proxies and populated them with data. Problem is how to convert the data in then into text so I could merge it with the message body.
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Chris Pollach @Appeon
Chris Pollach @Appeon Accepted Answer Pending Moderation
  1. Thursday, 16 May 2024 14:18 PM UTC
  2. PowerBuilder
  3. # 4

Hi Hannu;

  You will now need to use the PBDOM feature to parse / build the XML data stream.

Regards .. Chris

 

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