topic Re: [resolved] How to pass POST data to tRESTRequest Component properly in Talend Studio

[resolved] How to pass POST data to tRESTRequest Component properly

Anonymous — Sat, 16 Nov 2024 11:44:51 GMT

I've followed the tutorial on creating RESTful Web Services from: http://talendforge.org/tutorials/tutorial.php?language=english&idTuto=104
But the tutorial is a bit lacking on creating a POST REST Web Service.
I've played around it a bit but I'm not sure why the payload passed to the tRESTRequest doesn't propagate properly.
I ticked the "Log messages" option in tRESTRequest so I saw that the payload is received by the tRESTRequest component. But after the tXMLMap, the value of the payload is already null.
I'm attaching an image of the job components, including the component view of the tRESTRequest and tXMLMap, the rest client which I used to send the post request, and the logs of the result.
Thanks in advance.

Re: [resolved] How to pass POST data to tRESTRequest Component properly

Anonymous — Mon, 17 Feb 2014 13:36:58 GMT

Hi
You have a form payload, so you can either
- add a 'body' parameter of type String and then parse it manually or
- add parameters with the names matching those in the form payload and 'qualify' then by updating 'Comments' with the value 'form', no quotes
HTH, Sergey

Re: [resolved] How to pass POST data to tRESTRequest Component properly

Anonymous — Mon, 17 Feb 2014 13:40:34 GMT

Sorry, did not see all of your images; just update Comments and it should work

Re: [resolved] How to pass POST data to tRESTRequest Component properly

Anonymous — Tue, 18 Feb 2014 03:39:13 GMT

Hi sberyozkin, Thank you for your reply. Where could I see the "Comments" section? Under the Documentation tab? Can you refer me a guide or a tutorial on how to do it? Thanks in advance.
I'm using Talend Open Studio for ESB 5.4.1 if that would help.

Re: [resolved] How to pass POST data to tRESTRequest Component properly

Anonymous — Tue, 18 Feb 2014 09:37:59 GMT

Thanks sberyozkin, that tip on "qualifying" parameters worked when I was passing form data. How did you know about that? Is there a documentation on those tips?
Thank you very much! What I'm working on right now is passing an XML post data, is there also some things that I need to do to "qualify" the post data? Thanks in advance.

Re: [resolved] How to pass POST data to tRESTRequest Component properly

Anonymous — Tue, 18 Feb 2014 10:27:15 GMT

Hi, to get the XML body mapped you need to add a 'body' parameter of type Document; you only need to qualify the parameters, such as queries, headers, URI path values; this is also done for form payloads as in your case, or for multipart payloads
HTH, Sergey

Re: [resolved] How to pass POST data to tRESTRequest Component properly

Anonymous — Wed, 19 Feb 2014 08:24:25 GMT

Thank you very much Sergey! That clears some things up. Hope this also help other users.
Regards,
Maki

Re: [resolved] How to pass POST data to tRESTRequest Component properly

_AnonymousUser — Thu, 02 Apr 2015 15:10:28 GMT

Thanks for this post ! it solved my problem. And Maki is right, how could you find that !?!?! Crazy to put some logic on a comment field !
But not complaining! everything works well ! Great product!

Re: [resolved] How to pass POST data to tRESTRequest Component properly

Anonymous — Thu, 02 Apr 2015 16:07:49 GMT

Cool.
You are right that using a comment filed is not exactly type safe :-). But we had to use the available tooling-level fields at a time of designing tRESTRequest.
We have some ideas on how to make it all much more wizard- and user- friendly and hopefully at some point in the future it will be realized...
Sergey

Re: [resolved] How to pass POST data to tRESTRequest Component properly

Anonymous — Sat, 29 Sep 2018 09:37:59 GMT

Wow

this is really crazy. It took me one hour to really understand what is going on here. After 3 years, this is still the solution.

Re: [resolved] How to pass POST data to tRESTRequest Component properly

davidferguson — Fri, 05 Oct 2018 12:02:02 GMT

@Snooops

one hour is probably a record time to be honest - I'd have been over the moon if I understood it that quick!

Re: [resolved] How to pass POST data to tRESTRequest Component properly

milver — Fri, 12 Mar 2021 03:24:52 GMT

URL: https://help.talend.com/r/7NvFnkWpbH8Gy3Rm6mUXnw/VU66bkh2o5KJEbjJZHac2w

If you specify URI parameters in the output flow schema, you might need to define what type of parameter it is in the Comment field of the schema. By default, if you leave the Comment field empty, the parameter is considered as a Path parameter. Below is a list of supported Comment values:

empty or path corresponds to the default @PathParam,
query corresponds to @QueryParam,
form corresponds to @FormParam,
header corresponds to @HeaderParam.
matrix corresponds to @MatrixParam.
multipart corresponds to the CXF specific @Multipart, representing the request body. It can be used only with POST and PUT HTTP methods.