validate_jira_id.py

def validate_jira_id(jira_id, jira_username, jira_password):
    """ Throw an exception if the jira_id is invalid. """

    request_url = JIRA_BASE_URL + '/rest/api/2/issue/' + jira_id
    response = requests.get(request_url, auth=(jira_username, jira_password))
    if response.status_code == 404:
        raise ValueError('Jira ticket not found.')

    if response.status_code != 200:
        raise ValueError('Unexpected status code during lookup: {}'.format(response.status_code))

    # parse response and check fields
    issue_json = json.loads(response.text)
    if issue_json['fields']['status']['name'] != 'Done':
        message = "Invalid status, expected 'Done' found '{}'".format(issue_json['fields']['status']['name'])
        raise ValueError(message)