JIRA REST API transitioning of issues on a Kanban board not working

Agronomos123%

I am trying to drag and drop an issue (Transition it) on a Kanban board; I am using the REST API, but the action does not affect the status on the board.

This is my code (python function):

def get_ticket(issueID,state):
'''
Transition ticket into the next status
'''
server = url + "rest/api/2/issue/" + issueID +'/transitions?expand=transitions.fields&transitionId=' + str(state)
headers = {
"Accept": "application/json",
"Content-Type": "application/json"}
payload = json.dumps( {"transition": {"id": state} })

response = requests.request(
"POST",
url,
data=payload,
headers=headers,
auth=HTTPBasicAuth(user, apikey)
)
print("Status: ",response.status_code)
return(response)

I have checked the valid transition states and got this (hiding some information for privacy reasons):

{'expand': 'transitions',
 'transitions': [{'id': '51',
   'name': '<test label>',
   'to': {'self': 'https://<server/rest/api/2/status/10158',
    'description': '',
    'iconUrl': 'https://<server>/images/icons/statuses/generic.png',
    'name': '<test label2>',
    'id': '10158',
    'statusCategory': {'self': 'https://<server>/rest/api/2/statuscategory/2',
     'id': 2,
     'key': 'new',
     'colorName': 'blue-gray',
     'name': 'To Do'}},
   'hasScreen': False,
   'isGlobal': False,
   'isInitial': False,
   'isAvailable': True,
   'isConditional': True,
   'fields': {},
   'isLooped': False}]}

I have tried to use the next state as '51' or '10158' or '2', both as digit and as text; also, I have tried the address with and without the transitionId attached at the end, but the transaction does seem to have any effect, and none of them get any errors.

Any guidance over what I might be missing is appreciated.

unknown

Hello @Agronomos123% 

Your URL is incorrectly formed. The expansion= parameter is used for expanding the value for fields with a Get Transitions request. Since the Transition Issue endpoint doesn't use that parameter, expansion= has no purpose, so the rest of the URL is probably being ignored.

Your request URL should be just:

server = url + "rest/api/2/issue/" + issueID +'/transitions'

The body of the request is the only place you need to define the other parameters for transitioning the issue. You don't need to do it in the URL and the body, as that duplication might also be confusing the REST API.

Have another look at the Transition Issue section of the Jira Cloud REST API documentation page. There is a Python example there that shows the structure of the request.