Need help in Arduino and App interfacing

I am preparing a project on air quality monitoring using arduino and desired sensors. I have to send the data on the app which I have prepared using MIT APP inventor. The issue I am facing is in handling the on the database for which firebase has been used. Please help me in sending and fetching the data from firebase.

Hi there, @gargisinha96

Can you please share your code so I can help you with said program?

Regards,
@chai