Trigger transition after issue is created

[Ignasi Boronat]

I currently created several post functions on the initial "create" transition of an issue. This sets different fields, one of them being Assignee

Function to be created (I already know)

I now want to set different values for a custom field which depends on the value of Assignee. To do that I thought of creating different transitions, checking the value of Assignee and then assigning a value to my custom field accordingly. I know how to do that.

Function I need to trigger (don't know how)

So the problem is: Once the issue has been created with the initial parameters, I need a way to trigger these functions automatically, without user intervention and without changing the issue's status. 

Is this even possible? Thanks

[Jack Brickey]

you could do this w/ an addon, e.g. Automation for Jira, Scriptrunner, Powerscripts, etc. The issue is around the trigger as you have pointed out. Basically, you want to run a script when an issue has been created (after transition) based upon some values. The post functions only work "during" transitions.