How to invoke REST from JIRA Script Runner Behaviour

[Yves Martin]

 Hello

I am following Adaptavist Script Runner documentation to add a behaviour in ServiceDesk (but I guess it would be the same for JIRA core),

and I would like to query a REST endpoint to retreive information to append into custom field description, parameter comes from another form field, reporter in my use case.

I have found no REST endpoint client invocation code snippet except in the specific "select list conversions" example.

What is the best way to invoke a custom REST endpoint to retrieve a single value as a behaviour ?

[Neta Elyakim]

https://scriptrunner.adaptavist.com/latest/jira/behaviours-conversions.html#_walkthrough_external_rest_service

See "Behaviour" on this page- you can send rest request with behaviour and convert the JSON respond to select list values

[Yves Martin]

I request for a way to query a REST endpoint "manually" within specific client-side Behaviour script code, so that it works from Service Desk customer portal create screen (as "select list conversion" does not work there yet).

I am looking for some kind of "REST request factory" Groovy snippet I may use to invoke my own Script Runner endpoint and retrieve results...

[Neta Elyakim]

Do you need help with the REST or the Behaviour?

Behaviour works in service desk portal -https://scriptrunner.adaptavist.com/latest/jira/behaviours-servicedesk.html

You want the customer to enter the rest request and then he will see the result with behaviour ?  

Please explain more about the process

[Yves Martin]

I expect my behaviour script to call a REST endpoint (whatever it is) and process JSON return... but I have found no example or scriptlet about it - and I am not comfortable with Groovy to guess how to do it.

By the way, I gave up my REST endpoints designed to be registered in "select list conversion" (not available in ServiceDesk yet) and move SQL queries directly into behaviour scripts.

But I am still interested in behaviour script example to invoke REST method and parse JSON anwser.

[Maikes]

I 'm with the same situation. Someone can help ? 

How to invoke and the coorrelation between behaviour and REST end Points in script runner ?? 

Thank you