Garmin Connect Sync Script for Linux (python)

sync.py

# Syncs files on a garmin device to garmin connect and keeps a local copy.
# auth.json contains your garmin connect username(email) and password.

import json
import os
import shutil

import requests


def auth():

    session = requests.Session()
    with open('auth.json', 'r') as fn:
        data = json.load(fn)
    data.update({'eventId': 'submit', 'embed': 'true', })
    base_url = 'https://sso.garmin.com/sso'
    url_prefix = 'https://connect.garmin.com'

    params = {
        'service': url_prefix+'/post-auth/login', 'clientId': 'GarminConnect',
        'gauthHost': base_url, 'consumeServiceTicket': 'false',
        }

    preResp = session.get(base_url+'/login', params=params)
    ssoResp = session.post(base_url+'/login', params=params,
                           data=data, allow_redirects=False)
    gcRedeemResp = session.get(url_prefix+'/post-auth/login',
                               allow_redirects=False)
    max_redirect_count = 7
    current_redirect_count = 1
    while True:
        url = gcRedeemResp.headers['location']
        # Fix up relative redirects.
        if url.startswith('/'):
            url = url_prefix + url
        url_prefix = '/'.join(url.split('/')[:3])
        gcRedeemResp = session.get(url, allow_redirects=False)
        if ((current_redirect_count >= max_redirect_count) and
                (gcRedeemResp.status_code != 200)):
            raise Exception('GC redeem %d/%d error %s %s' % (
                current_redirect_count, max_redirect_count,
                gcRedeemResp.status_code, gcRedeemResp.text))
        if gcRedeemResp.status_code == 200 or gcRedeemResp.status_code == 404:
            break
        current_redirect_count += 1
        if current_redirect_count > max_redirect_count:
            break

    session.headers.update({'Referer': 'https://grant.stephens.com'})
    return session


def upload(path, fn, session):
    url_prefix = 'https://connect.garmin.com'
    return session.post(url_prefix+'/modern/proxy/upload-service/upload/.fit',
                        files={
                            'data': (fn, open(os.path.join(path, fn), 'rb'))},
                        headers={'nk': 'NT'})


if __name__ == "__main__":
    session = auth()
    path = '/media/{}/GARMIN/Garmin/Activity'.format(
        os.environ.get('USERNAME'))
    for fn in os.listdir(path):
        print('Uploading: {}'.format(fn))
        result = upload(path, fn, session).json()
        if len(result['detailedImportResult']['successes']) == 1:
            print('Moving: {}'.format(fn))
            os.makedirs(fn.split('-')[0]+'test', exist_ok=True)
            shutil.move(os.path.join(path, fn),
                        os.path.join(fn.split('-')[0], fn))
        else:
            os.makedirs('errors', exist_ok=True)
            shutil.move(os.path.join(path, fn),
                        os.path.join('errors', fn))

Hi grantstephens,

Do you know if this works for a Garmin Forerunner 405? I created a script to download my tracks on my computer and I would like to upload on Garmin Connect automatically from my folder. What is the format of the auth.json? I'm Linux user and Garmin connect don't exist on this OS, this is the reason for my query.

Thanks a lot for your work.