Here’s a quick one.   Fetch a list of all projects in a Jira Cloud instance, then fetch a list of all of the issues in each project.  Paginate through the resulting list of issues, and for each issue write the issue key and issue status to a CSV file.

import requests
import json
import base64
import csv

cloud_username = "<email>"
cloud_token = "<token>"
cloud_url = "<cloud URL>"

def credentials_encode(username, password):
    credentials_string = f'{username}:{password}'
    input_bytes = credentials_string.encode('utf-8')
    encoded_bytes = base64.b64encode(input_bytes)
    encoded_string = encoded_bytes.decode('utf-8')
    return encoded_string

encoded_cloud_credentials = credentials_encode(cloud_username, cloud_token)
# Encode the credentials that we provided

request_headers = {
    'Authorization': f'Basic {encoded_cloud_credentials}',
    'Content-Type': 'application/json',
    'Accept': 'application/json',
    'X-Atlassian-token': 'no-check'
}
# Create a header object used for the HTTP GET requests

get_projects = requests.get(f"{cloud_url}/rest/api/latest/project", headers=request_headers)
# Get a list of all projects in the instance

projects_json = json.loads(get_projects.content)
# Convert the list of projects to JSON

with open('project_issues.csv', 'w', newline='') as csvfile:
    csvwriter = csv.writer(csvfile)
    # Create a CSV file

    for project in projects_json:
        # Iterate through the list of projects

        start_at = 0
        max_results = 100
        # Declare variables used in pagination

        project_key = project['key']
        # Fetch the key of the current project from the JSON

        while True:
            # Loop until pagination is complete
            get_project_issues = requests.get(f'{cloud_url}/rest/api/latest/search?jql=project="{project_key}"&maxResults={max_results}&startAt={start_at}', headers=request_headers)
            # Use the project key to get the issues for the project in question
            project_issues_json = json.loads(get_project_issues.content)
            # Load the results of the project issue query into JSON

            print(f'{cloud_url}/rest/api/latest/search?jql=project="{project_key}"&maxResults={max_results}&startAt={start_at}')
            # Print a statement that tracks where pagination is at for each project, so we know that it's actually doing something

            if str(get_project_issues.content).__contains__("does not exist for the field"):
                # Some projects are archived, and therefor don't play nice
                # If the system can't find the project, just end the loop
                break

            for issue in project_issues_json['issues']:
                # Iterate through the issues for this page of results

                fields = issue['fields']
                csvwriter.writerow([f"{issue['key']} - {fields['status']['name']}"])
                # Write the issue key and issue status to the CSV we currently have open

            start_at += max_results
            # Increment the pagination
            
            if start_at > project_issues_json['total']:
                # If the pagination for this project has reached the end,
                # break the loop and start on the next project
                print(f"{project_key} has {project_issues_json['total']} issues")
                break