How to add Assignee Group and Organisation in JIRA Create API?

[Naresh T]

I am trying to create the Incident in JIRA by API, but I am not sure how to pass the Assignee Group and Organisation fields.

Please find the below input parameters I have used to create the incident in JIRA.

{        "fields": {        "project": {            "key": "TEST"        },        "summary": "JIRA Incident Ticket Creation By POSTMAN",        "issuetype": {            "name": "Incident"        },        "assignee": {            "name": "naresh.thayumanaswamy"        },        "reporter": {            "name": "naresh.thayumanaswamy"        },        "priority": {            "name": "Critical"        },        "labels": [            "BUCK_FIX"        ],        "description": "Description for Incident Creation"    }}

Kindly share me if you have the idea.