Google Cloud SQL connection to flutter

Since SQL Databases should never be accessed over the internet directly, it would be a good idea to have a web endpoint which exposes a limited API, sending http requests for the operations wanted. One way to approach this would be to have your Flutter app trigger Cloud Functions, which would then connect to Cloud SQL (the managed PostgreSQL service on GCP).

Here is documentation on how to connect Cloud Functions to Cloud SQL. Finally, here is an external blog post on how to use Flutter with Cloud Functions. Please note that we cannot guarantee the accuracy of external information, and it should serve as a reference to get you started.