sembast_sqflite

Description:

sembast sqflite

sembast_sqflite #
sembast DB for flutter on top of sqflite.

Supports both iOS and Android
Supports Flutter Web through sembast_web.
Supports Dart VM (Desktop) through sembast

See sembast for API usage
Setup #
Setup instructions for all
platforms (Flutter/VM, iOS/Android/MacOS, Windows/Linux)
Quick usage #
Example for Flutter (iOS/Android/MacOS):
import 'package:sembast_sqflite/sembast_sqflite.dart';
import 'package:sembast_test/test_common.dart';
import 'package:sqflite/sqflite.dart' as sqflite;

export 'package:sembast/sembast.dart';

Future main() async {
/// Sembast sqflite based database factory.
///
/// Supports iOS/Android/MacOS for now.
final factory = getDatabaseFactorySqflite(sqflite.databaseFactory);

// Define the store, key is a string, value is a string
var store = StoreRef<String, String>.main();
// Define the record
var record = store.record('my_key');

// Open the database
var db = await factory.openDatabase('test.db');

// Write a record
await record.put(db, 'my_value');

// print store content
print(await store.stream(db).first);

// Close the database
await db.close();
}
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Why #
You might wonder why...sembast already has its own io format. However sembast io is not cross process safe and one
might consider that it is not a well known robust database system.
Here sqflite is used as the based of a journal database that provides data to sembast, allowing a fast all-in-memory
access and safe cross process database storage and transaction mechanism.
Usage #

sembast_sqflite should be used from the main isolate only
While being cross-process safe, you might encounter locked access when using multiple transactions are in progress, which could happen while debugging.
Applications should not rely on internal storage format