Update custom field on Asana task with information from Google sheet.

update_asana_priority.py

from __future__ import print_function
import pickle
import os.path
import string
import requests
from googleapiclient.discovery import build
from google_auth_oauthlib.flow import InstalledAppFlow
from google.auth.transport.requests import Request

# If modifying these scopes, delete the file token.pickle.
SCOPES = ['https://www.googleapis.com/auth/spreadsheets.readonly']

# The ID and range of a sample spreadsheet.
SPREADSHEET_ID = 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXX'
# starting cell & ending cell
RANGE_NAME = 'A2:B72'

# credentials
ASANA_API_KEY = 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXX'

# Custom field
CUSTOM_FIELD_ID = 'XXXXXXXXXXXXXXXXXXXX'

def new_priority(value):
    return 100 - int(value)

def update_on_asana(values = {}):
    task_id = values['task_id']
    # call asana update task api
    url = "https://app.asana.com/api/1.0/tasks/{}".format(task_id)
    print('Calling URL %s' % url)
    resp = requests.put(
        url,
        json = {'data': values['fields']},
        headers = {
            'Content-Type':'application/json',
            'Accept': 'application/json',
            'Authorization': 'Bearer {}'.format(ASANA_API_KEY)
        }
    )
    print('Updated task_id %s and resp is %s' % (task_id, resp.content))

def update_priority(tasks = []):
    for task in tasks:
        update_on_asana({
            'task_id': task['task_id'],
            'fields': {
                'custom_fields': {
                    CUSTOM_FIELD_ID: new_priority(task['priority'])
                }
            }
        })

def main():
    """Shows basic usage of the Sheets API.
    Prints values from a sample spreadsheet.
    """
    creds = None
    # The file token.pickle stores the user's access and refresh tokens, and is
    # created automatically when the authorization flow completes for the first
    # time.
    if os.path.exists('token.pickle'):
        with open('token.pickle', 'rb') as token:
            creds = pickle.load(token)
    # If there are no (valid) credentials available, let the user log in.
    if not creds or not creds.valid:
        if creds and creds.expired and creds.refresh_token:
            creds.refresh(Request())
        else:
            flow = InstalledAppFlow.from_client_secrets_file(
                'credentials.json', SCOPES)
            creds = flow.run_local_server(port=0)
        # Save the credentials for the next run
        with open('token.pickle', 'wb') as token:
            pickle.dump(creds, token)

    service = build('sheets', 'v4', credentials=creds)

    # Call the Sheets API
    sheet = service.spreadsheets()
    result = sheet.values().get(spreadsheetId=SPREADSHEET_ID,
                                range=RANGE_NAME).execute()
    values = result.get('values', [])

    if not values:
        print('No data found.')
    else:
        tasks = []
        for row in values:
            # Grab columns A and B, which correspond to indices 0 and 1.
            tasks.append({ 'task_id': row[0].replace("'", ''), 'priority': row[1] })
    update_priority(tasks)

if __name__ == '__main__':
    main()