Envelope/mobile/lib/utils/storage/database.dart

import 'dart:async';
import 'package:flutter/widgets.dart';
import 'package:path/path.dart';
import 'package:sqflite/sqflite.dart';

Future<Database> getDatabaseConnection() async {
    WidgetsFlutterBinding.ensureInitialized();

    final database = openDatabase(
      // Set the path to the database. Note: Using the `join` function from the
      // `path` package is best practice to ensure the path is correctly
      // constructed for each platform.
      join(await getDatabasesPath(), 'envelope.db'),
      // When the database is first created, create a table to store dogs.
      onCreate: (db, version) {
        // Run the CREATE TABLE statement on the database.
        return db.execute(
          '''
          CREATE TABLE IF NOT EXISTS friends(
                  id BLOB PRIMARY KEY,
                  user_id BLOB,
                  friend_id BLOB,
                  friend_id_decrypted BLOB,
                  accepted_at TEXT
                  );
          ''',
        );
      },
      // Set the version. This executes the onCreate function and provides a
      // path to perform database upgrades and downgrades.
      version: 1,
    );

    return database;
}