How do you access Google Cloud SQL (which is a MySQL database) with Google Endpoints in Android Studio? 

I created a Cloud SQL database in the developers console and I have an android project in Android Studio. I just want to press a button and have whatever I wrote in my EditText to be written to the MySQL database. Everywhere I read on Google it says "Use Google Endpoints!" But it really provides no details on how you actually do this...

I understand Android Studio has support for all these Google Cloud Platform services but I cannot for the life of me find a tutorial or guide on how to do something so simple as I described above.

Help!