topic Re: Cant pass a global variable to tRest Http Body in Talend Studio

Cant pass a global variable to tRest Http Body

IliasTahri — Fri, 15 Nov 2024 21:44:10 GMT

I'm trying to use a global variable that i defined before as parameter of

POST

http

body in the tRest component as follows :

but im getting the " unable to decode malformed json "

Do you know a solution ?

Re: Cant pass a global variable to tRest Http Body

Anonymous — Mon, 05 Jun 2023 02:19:08 GMT

the expression syntax is not right, to use a global variable in a string, the expression looks like:

"...params\":["+(String)globalMap.get("session_id")+"]}"

// BTW, you need [] around the session id value in your case?

Please try again and let me know if it works.

Regards

Shong

Re: Cant pass a global variable to tRest Http Body

IliasTahri — Mon, 05 Jun 2023 07:30:26 GMT

i tried your suggestion but i still get the same error.

Yes i need the [] around the session id value because im working with an API that requires the [] in the params value .

Re: Cant pass a global variable to tRest Http Body

Anonymous — Mon, 05 Jun 2023 08:28:28 GMT

Try to print the value of global variable before it is used to check if it has the right value. eg:

tBufferOutput--main--tSetGlobalVar

|onsubjobok

tJava

on tJava:

System.out.println((String)globalMap.get("session_id"));

In addition, have a try to set a fixed session id in the body string to test if JSON format in body is fine.

"...params\":[your_session_id_value]}"

Re: Cant pass a global variable to tRest Http Body

IliasTahri — Mon, 05 Jun 2023 09:15:42 GMT

that is not the issue.. the problem is that the error " unable to decode malformed json " so even if the session_id value is incorrect i should get a response other than the error above

i've also tried to hard code the session key to test the json format and it works fine ..

I'm starting to think its not possible to use a global variable in http body with json format