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Wahoo Garmin Sync

A tool to sync Wahoo bike rides into Garmin Connect.

Principle

This application will be triggered by the Wahoo API each time a new activity is registered on its platform.
The webhook will then upload the .fit file to Garmin Connect.

Register your application

  1. You need to register an app at Wahoo Developer Portal
  2. With scope:
    email power_zones_read workouts_read plans_read routes_read offline_data user_read
  3. Choose Sandbox (it will be approved more quickly) and enable Webhook.
  4. With Webhook URI to:
    https://your_website_url.com/webhook
    This application should be accessible behind this domain.

Build & Run the Docker image

Inside the wahoo_garmin_sync directory:

  • Replace the placeholders GARMIN_LOGIN and GARMIN_PASSWORD in the docker-compose.yml file with your Garmin Connect login credentials.
  • Then run the following command:
    docker compose up --build -d
  • Open a browser and and navigate to http://localhost:42195 or https://your_website_url.com
    You should see a simple ok message.

Test & Debug

Logs

When the application is triggered by the Wahoo webhook, the logs (viewable with docker logs wahoo) should look like this:

Received post
Workout url: https://cdn.wahooligan.com/wahoo-cloud/production/uploads/workout_file/file/jxre2UP3Lx_o6wF-8tdArw/2025-01-06-171681-ELEMNT_ROAM_F23E-852-0.fit
Filename: 2025-01-06-171681-ELEMNT_ROAM_F23E-852-0.fit
192.168.1.23 - - [06/Jan/2025 18:19:52] "POST /webhook HTTP/1.1" 200 -
File saved
Connected to _Garmin Connect_
{'detailedImportResult': {'uploadId': 302033637404, 'uploadUuid': {'uuid': 'eafa3083-3c1a-4529-bd59-f298f06418e4'}, 'owner': 166921955, 'fileSize': 85828, 'processingTime': 564, 'creationDate': '2025-01-06 18:19:56.336 GMT', 'ipAddress': None, 'fileName': '2025-01-06-171681-ELEMNT_ROAM_F23E-852-0.fit', 'report': None, 'successes': [], 'failures': []}}
Workout successfully uploaded

Bruno

The Bruno collection contains:

  • Garmin request to upload manually a file to Garmin Connect
    • Fill the token value with the access_token value.
      Can be found by running: 
      docker exec -it wahoo sh
cat ~/.garth/oauth2_token.json
    • Choose the .fit file to upload
  • Webhook request to call the deployed /webhook endpoint
    • Filename can be found by listing workouts with the Wahoo API
    • To receive a token: 
      curl https://api.wahooligan.com/oauth/authorize?client_id=<client_id>&redirect_uri=https://your_website_url.com&scope=email%20power_zones_read%20workouts_read%20plans_read%20routes_read%20offline_data%20user_read&response_type=code -H "Content-Type: application/json"
      You will be redirected to your application with this url, holding a code: 
      https://your_website_url.com/?code=<code>
      Use it to the run: 
      curl -X POST https://api.wahooligan.com/oauth/token?client_secret=your_client_secret&code=<code>&redirect_uri=https://your_website_url.com&grant_type=authorization_code&client_id=<client_id> -H "Content-Type: application/json"
      Response: 
      {"access_token":"<access_token>","token_type":"Bearer","expires_in":7199,"refresh_token":"<refresh_token>","scope":"email power_zones_read workouts_read plans_read routes_read offline_data user_read","created_at":1736182705,"user_id":4112422}
      Use the access_token value (it expires after 2 hours)