Run a Jira Advanced search and output the result.

api_search.py

import json
from collections import namedtuple
from jiraone import endpoint, LOGIN, echo, field
"""
Author: Prince Nyeche
License: MIT License
"""
# use the below JSON to create `config.json` configuration file
"""
{
"user": "prince@example.com",
"password": "api_token_here",
"url": "https://yourinstance.atlassian.net"
}

"""

config = json.load(open('config.json'))
LOGIN.api = False # kept for Jira server connection
LOGIN(**config)

DATA_STRUCTURE = ["Summary", "IssueKey", "Assignee", "Reporter", "Labels", "Priority"]


def download_data(query) -> None:
    """
    Execute a JQL search to Jira issues.

    :param query: A valid JQL query
    :return: None
    """
    start = 0
    total = 0
    while True:
        # Show script start
        print("Starting...")
        # Search using the issue search endpoint
        fetch = LOGIN.get(endpoint.search_issues_jql(query=query, start_at=start))
        start += 50
        # define a way to structure the data gotten from various fields
        data_dog = namedtuple("data_dog", DATA_STRUCTURE)
        if fetch.status_code < 300:
            issues = fetch.json()
            total = issues.get("total")
            for issue in issues["issues"]:
                if "key" in issue:
                    key = issue.get("key")
                    # the `field` class has a method called get_field_value which is able to get
                    # the value of any field based on the name. i.e case sensitive.You can find a valid field name from
                    # https://yourinstance.atlassian.net/rest/api/3/field, for server https://yourURL/rest/api/2/field
                    get_fields = field.get_field_value("Summary", key), \
                                 key, \
                                 field.get_field_value("Assignee", key), \
                                 field.get_field_value("Reporter", key), \
                                 field.get_field_value("Labels", key), \
                                 field.get_field_value("Priority", key)
                    items = data_dog._make(get_fields)
                    my_list = [items.Summary, items.IssueKey, items.Assignee.get("displayName") if items.Assignee is \
                        not None else items.Assignee, items.Reporter.get("displayName") if items.Reporter is not
                          None else items.Reporter, items.Labels, items.Priority.get("name") if items.Priority is not \
                               None else items.Priority]
                    echo(my_list)
        if start > total:
            break


if __name__ == "__main__":
    jql = "project = AT2 ORDER BY created DESC"
    download_data(jql)

There's a required module need here which can be installed using pip install jiraone.
You config.json file should reside in the same directory the script is executed from

{
"user": "prince@example.com",
"password": "api_token_here",
"url": "https://yourinstance.atlassian.net"
}