How do I define the Webhook to pass issue.summary and issue.id

[gashby]

https://userstory/services/apexrest/UserStory

the JSON needs to look like this

{

  "summary":"Download Files",

  "id": "01001" 

}

where summary is $issue.summary and id is $issue.id 

[Yury Lubanets]

Hello

You can configure webhook to listen to Jira Events or adding it to a transition.

If you want webhook to send JSON body you need uncheck Exclude body field in Webhook configurations. But you cannot define JSON by yourself. Look at the article where JSON schema is present.