The app for students of the Challecara. The Challecara is a community of software development with college students in Fukuoka, Japan!
See protocol specification of the callable function: https://firebase.google.com/docs/functions/callable-reference
For example:
curl -H "Content-Type: application/json" -X POST http://<your-localhost>/challecara-student/us-central1/addMessage -d '{"data": {}}'
npm start
> helloWorld()
With http headers.
> helloWorld("", { headers: {'authorization': "Bearer ..."} })