Create a Jira multi select field which loads a list of options from REST API dynamically

[Andrian Fernandopulle]

Hello All,

I have 4 different Jira instances. I use one Jira instance to manage project changes. So I need a way to get all projects names from 3 different instances into one.

Ex scenario: User selects the "Instance A" from the Jira Instance field & I want to make a REST call/mysql query to that instance and get a list of projects & display that in the Jira Project/s field which is a multi select field. 

Jira Instance: 

    Instance A

    Instance B

    Instance C

Jira Project/s:

    Project AA

    Project AB

    Project AC

I tried using nfeed. With that I need to have 4 different fields for each instance because one REST call per instance can only be mapped to one field. I cannot associate one field with multiple data sources. 

Anyone done something similar ? Any ideas on how to get all these data into one field ?

Any thoughts & advise appreciated.

NOTE

As of now we are using a text field to capture this project info but we need a dropdown field to capture these & report on them. We have so many projects in each instance and we do not want to create a custom field and manually manage them.

Thanks in advance.

[Nic Brough -Adaptavist-]

You'll need to hack the core code to add support for this.

[Jiannan Tang]

I had used chrome developer tools, but still nof found the target js