How to get the front end and backend code, REST of existing JIRA software?

[Shivam Barthwal]

Hello,

I am very new to jira plugin development. I have to develop plugins and addons for JIRA. In my work there is a JIRA software used in the project, and I have my own JIRA cloud instance, so I am wondering how to use the backend REST API and server of the JIRA software used in project from my jira cloud instance. I know that there is Atlassian connect express framework, but I do not understand how to have the backend and frontend code structure of the already existing JIRA app in work to develop additional functionalites? Please help, I have no expierence in JIRA development

Thank you

[Prince Nyeche]

Hi @Shivam Barthwal 

For Add-on development, to get expert help on how to develop Jira Add-ons, you can ask here where there are lots of insight. Regarding backend and frontend code, using REST API is the most straightforward way to communicate with Jira, there are other methods as well you could explore such as Forge. You can look at this Start building with Atlassian Guide to get started, if you want to know more on the frontend side, you should look towards Atlaskit as Atlassian uses mostly React on frontend. Hope that helps to get you started.