murdho / playlists-by-tallinn-go

:radio: Get the current track from the radio station and store it in Cloud Firestore :fire:

🎼 Playlists by Tallinn 📻

Cloud Function keeping an eye on tracks played in Raadio Tallinn and storing them in Cloud Firestore.

I enjoy the music of Raadio Tallinn and created this function for personal use. The data from Firestore can be used in many ways, for example to add new tracks to a playlist in Spotify.

Note about the lazy initialization

I tried lazy initialization mostly for trying it out, although it seems to perform similarly without laziness as well. 🚀 Next time around I would not do the lazy init. again if not absolutely necessary. I prefer simple and readable code over crazy-optimized code in most of the cases. ☺️

Deploy to Google Cloud Functions

This deploys the function that is ready for accepting messages from the Cloud PubSub topic playlists-by-tallinn. Set up a Cloud Scheduler cron-job for triggering the function periodically.

Songs are stored in Cloud Firestore collection playlists-by-tallinn.

gcloud functions deploy PlaylistsByTallinn \
                            --service-account [e-mail]
                            --trigger-topic playlists-by-tallinn \
                            --region europe-west1 \
                            --runtime go111 \
                            --memory 128MB \
                            --timeout 2s

Run in development

Set environment variables

These are handled by Cloud Functions, only needed to specify locally.

export GCP_PROJECT=your-gcp-project-id
export GOOGLE_APPLICATION_CREDENTIALS=full-path-to-service-account-credentials.json

More info: https://cloud.google.com/docs/authentication/getting-started

Run the app

In the app directory, execute:

make run