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https://github.com/duhanbalci/surrealdb_flutter
SurrealDB client written in pure dart. auto reconnect, typed functions
https://github.com/duhanbalci/surrealdb_flutter
surrealdb surrealdb-driver
Last synced: about 6 hours ago
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SurrealDB client written in pure dart. auto reconnect, typed functions
- Host: GitHub
- URL: https://github.com/duhanbalci/surrealdb_flutter
- Owner: duhanbalci
- License: mit
- Created: 2022-09-16T05:27:04.000Z (about 2 years ago)
- Default Branch: main
- Last Pushed: 2024-11-04T10:47:51.000Z (5 days ago)
- Last Synced: 2024-11-04T11:34:20.850Z (5 days ago)
- Topics: surrealdb, surrealdb-driver
- Language: Dart
- Homepage:
- Size: 93.8 KB
- Stars: 42
- Watchers: 4
- Forks: 9
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
Awesome Lists containing this project
- awesome-surreal - surrealdb-flutter - Client library for [Dart](https://dart.dev) and [Flutter](https://flutter.dev). (Client libraries)
README
# SurrealDB Client For Dart & Flutter
[](https://github.com/duhanbalci/surrealdb_flutter/actions/workflows/dart-test.yml)
This is a Dart client library for interacting with [SurrealDB](https://surrealdb.com/docs/), a highly scalable, distributed, and real-time database. This library enables developers to connect to SurrealDB instances, execute queries, authenticate users, and interact with database resources via WebSocket communication.
## Features
- ⚡ Connect and Disconnect: Establish or close a persistent WebSocket connection to a SurrealDB instance.
- 🔐 Authentication: Authenticate with a token to manage access to the database.
- 🗄️ Database Interaction: Use namespaces and databases, retrieve user information, and fetch database versions.
- 🔄 Live Queries: Support for live querying via WebSocket streams.
- ⚙️ Customizable Options: Set connection options and behavior using SurrealDBOptions.
## Installation
Add the following to your `pubspec.yaml`:
```yaml
dependencies:
surrealdb: ^1.0.0
```
Then run `dart pub get` or `flutter pub get`.
## Usage
### Connecting to SurrealDB
To connect to a SurrealDB, create a SurrealDB client instance and call the `connect()` method. You can also provide a token for authentication.
```dart
import 'package:surrealdb/surrealdb.dart';
void main() async {
// Create a SurrealDB client instance
final db = SurrealDB('ws://localhost:8000', token: 'your-auth-token');
// Connect to the database
db.connect();
// Wait for the connection to be established
await db.wait();
// Use a specific namespace and database
await db.use('namespace', 'database');
// Fetch version information
final version = await db.version();
print('SurrealDB version: $version');
// Close the connection when done
db.close();
}
```
### Authentication
SurrealDB requires authentication to access resources. You can sign up, sign in, and authenticate users using the SurrealDB client.
#### Signing Up a User
To create a new user:
```dart
final token = await db.signup(
user: 'new_user',
pass: 'password123',
namespace: 'namespace',
database: 'database',
access: 'users',
);
print('User signed up with token: $token');
```
#### Signing In
To sign in an existing user:
```dart
final token = await db.signin(
user: 'existing_user',
pass: 'password123',
namespace: 'namespace',
database: 'database',
access: 'users',
);
print('User signed in with token: $token');
```
#### Token Authentication
You can also authenticate with a token:
```dart
await db.authenticate('your-auth-token');
```
### Basic Queries
SurrealDB allows executing a variety of commands, including CRUD operations (Create, Read, Update, Delete) via queries. Here's how you can perform simple database operations.
#### 3.1 Create Records
```dart
final data = {'title': 'My first post', 'content': 'Hello, SurrealDB!'};
final result = await db.create('posts', data);
print('Created record: $result');
```
#### 3.2 Read Records
To retrieve records, you can use the `select` method.
```dart
final posts = await db.select('posts');
print('Fetched posts: $posts');
```
You can also use queries to filter or manipulate the data:
```dart
final specificPosts = await db.query(
r'SELECT * FROM posts WHERE title = $title',
{'title': 'My first post'},
);
print('Posts matching criteria: $specificPosts');
```
#### 3.3 Update Records
Updating records is done by specifying the table and ID of the record:
```dart
final updatedData = {'title': 'Updated post title'};
await db.update('posts:id', updatedData);
print('Record updated successfully');
```
#### 3.4 Delete Records
To delete a record:
```dart
await db.delete('posts:id');
print('Record deleted');
```
### Live Queries
SurrealDB supports live queries over WebSocket. Use the LiveQuery class for subscribing to changes in data.
```dart
final liveQuery = await db.liveQuery('LIVE SELECT * FROM posts WHERE active = true');
liveQuery.stream.listen((event) {
print('Received update: ${event.result}');
});
await db.create('posts', {
'title': 'My first post',
});
await db.create('posts', {
'title': 'My second post',
'active': true
});
```
You can read more about all the available methods and classes in the [API documentation](https://pub.dev/documentation/surrealdb/latest).
## Contributions
Contributions are welcome! Feel free to submit issues, feature requests, or pull requests to improve this library.
## License
This project is licensed under the MIT License. See the [`LICENSE`](https://github.com/duhanbalci/surrealdb_flutter/blob/main/LICENSE) file for more details.