Pulling data into jira issue from custom application

[Jason Einon]

Hello, 

I am currently working on a requirement to integrate JIRA with a 3rd party in house application used for managing software release's. The custom app contains ReleaseID, Release Status.. etc. 

We are able to send curl requests to the application to pull back details based on the ReleasesID, which is what I was hoping to leverage to update the JIRA issue during a workflow transition. 

What would be the best soltuion to do this using Jira to pull the information into a the jira issue? 

- Cloud based Jira 

[Thor]

I'd recommend to use the JIRA REST API. It helps you using the language / system you prefer to get data into JIRA.