THAT'S A WORK IN PROGRESS: Realtime Meetup "Répondez, s'il vous plaît" (RSVPS) analytics built upon Apache-Beam (streaming processing). Using Cloud Pub/Sub for events ingestion/data circulation, Cloud Functions as a trigger + post-processing and Cloud Firestore as a storage.
Visualize trending topics from Meetup in real-time.
Updating the trending topics in real-time to Firestore
Requires apache-beam[gcp] package and Python 2.7
You need to set up your owns Pub/Sub I/O topics and project.
Get Started with Python for Dataflow
$ python pipelines/rsvps-meetups-tpl.py