AmarWave Flutter / Dart SDK

Official Dart/Flutter client SDK for AmarWave — the real-time WebSocket platform.

Installation

Add to your pubspec.yaml:

dependencies:
  amarwave:
    path: ../sdk/flutter   # local path during development
    # OR from pub.dev once published:
    # amarwave: ^1.0.0

Quick Start

import 'package:amarwave/amarwave.dart';

void main() {
  final aw = AmarWave(
    const AmarWaveConfig(
      appKey: 'YOUR_APP_KEY',
      cluster: 'default',   // resolves amarwave.com automatically
    ),
  );

  aw.connection.bind('connected', (_) {
    print('Connected! Socket ID: ${aw.connection.socketId}');
  });

  final ch = aw.subscribe('public-chat');

  ch.bind('message', (data) {
    print('New message: $data');
  });

  aw.connect();
}

Configuration

Parameter	Type	Default	Description
appKey	String	required	Your AmarWave application key
cluster	String?	null	Named cluster — auto-resolves host/port ('default', 'eu', 'us', 'ap1', 'ap2')
appSecret	String?	null	App secret for client-side HMAC auth
apiHost	String?	cluster value	HTTP API hostname override
apiPort	int	cluster value	HTTP API port override
forceTLS	bool	false	Force wss:// and https://
authEndpoint	String	'/broadcasting/auth'	Server-side auth endpoint
authHeaders	Map<String,String>	{}	Extra auth request headers
reconnectDelay	Duration	1s	Base reconnect delay
maxReconnectDelay	Duration	30s	Max reconnect delay
maxRetries	int	5	Max retries (0 = infinite)
activityTimeout	Duration	120s	Ping inactivity timeout
pongTimeout	Duration	30s	Pong wait timeout
disableStats	bool	false	Disable usage stats in pings

Channel Types

Public Channel

No authentication required.

final ch = aw.subscribe('public-chat');
ch.bind('message', (data) => print(data));

Private Channel

Requires HMAC auth. Either set appSecret in config (client-side, not for production) or configure an authEndpoint on your backend.

final ch = aw.subscribe('private-orders');
ch.bind('order-placed', (data) => print(data));

Presence Channel

Like private channels, but also tracks which members are subscribed.

final lobby = aw.subscribe('presence-lobby') as AmarWavePresenceChannel;

lobby.bind('subscribed', (_) {
  print('Members: ${lobby.memberCount}');
  print('All members: ${lobby.members}');
});

lobby.bind('amarwave_internal:member_added', (data) {
  print('Joined: $data');
});

lobby.bind('amarwave_internal:member_removed', (data) {
  print('Left: $data');
});

Publishing Events

Events can be published via the HTTP API. This works from both client and server.

Via channel reference

final ch = aw.subscribe('public-chat');
await ch.publish('message', {'user': 'Alice', 'text': 'Hello!'});

Via top-level shortcut

await aw.publish('public-chat', 'message', {'user': 'Alice', 'text': 'Hello!'});

Publishing is queued automatically before subscription confirmation and flushed once the server confirms the subscription.

Connection Lifecycle Events

Bind on aw.connection or directly on aw:

aw.connection.bind('connected', (_) => print('Connected'));
aw.connection.bind('disconnected', (_) => print('Disconnected'));
aw.connection.bind('connecting', (_) => print('Connecting...'));
aw.connection.bind('failed', (_) => print('Max retries exceeded'));
aw.bind('error', (err) => print('Error: $err'));

Disconnect

aw.disconnect();

This stops all reconnect attempts and closes the WebSocket cleanly.

Unsubscribe

aw.unsubscribe('public-chat');

Global Event Listener

Listen to every event on a channel:

ch.bindGlobal((event, data) => print('Event: $event, Data: $data'));

Server-Side Auth Endpoint

For private/presence channels in production, implement an auth endpoint on your backend:

POST /broadcasting/auth
Body: { "socket_id": "...", "channel_name": "private-orders" }
Response: { "auth": "<appKey>:<hmac_signature>" }

The PHP SDK ships with authenticate() and authenticatePresence() helpers for this.

License

MIT