Laravel Echo for Your Flutter Apps

Laravel Echo for Flutter

Basically, this package is port of official Laravel Echo javascript library. It helps subscribe to channels and listen for events broadcasted from your Laravel app.

API is same as official Echo package, so everything in Official documentation should work.

Three connectors available:

• [x] socket.io
• [x] Pusher
• [x] Null

Getting started

socket.io

To use with socket.io, you need to install socket_io_client for your Flutter app.

In your pubspec.yaml file:

dependencies:
  ...
  socket_io_client: ^0.9.1
  laravel_echo:

import socket_io_client

import 'package:socket_io_client/socket_io_client.dart' as IO;

usage

// Create echo instance
Echo echo = new Echo({
  'broadcaster': 'socket.io',
  'client': IO.io,
});

// Listening public channel
echo.channel('public-channel').listen('PublicEvent', (e) {
  print(e);
});

// Listening private channel
// Needs auth. See details how to authorize channel below in guides
echo.private('private-channel').listen('PrivateEvent', (e) {
  print(e);
});

// Listening presence channel
// Needs auth. See details how to authorize channel below in guides
echo.join('presence-channel')
  .here((users) {
    print(users);
  }).joining((user) {
    print(user);
  }).leaving((user) {
    print(user);
  }).listen('PresenceEvent', (e) {
    print(e);
  });

// Accessing socket instance
echo.socket.on('connect', (_) => print('connected'));
echo.socket.on('disconnect', (_) => print('disconnected'));

Pusher

To use with Pusher, you need to install flutter_pusher_client for you Flutter app.

In your pubspec.yaml file:

dependencies:
  ...
  flutter_pusher_client: ^0.3.1
  laravel_echo: ^0.2.5

import flutter_pusher_client

import 'package:flutter_pusher_client/flutter_pusher.dart';

PusherOptions options = PusherOptions(
  host: '10.0.2.2',
  port: 6001,
  encrypted: false,
);
FlutterPusher pusher = FlutterPusher('app', options, enableLogging: true);

Echo echo = new Echo({
  'broadcaster': 'pusher',
  'client': pusher,
});

echo.channel('public-channel').listen('PublicEvent', (e) {
  print(e);
});

socket.on('connect', (_) => print('connect'));
socket.on('disconnect', (_) => print('disconnect'));

Guide

Options

Option	Description	Default
auth
authEndpoint		/broadcasting/auth
broadcaster		socket.io
crsfToken
host	Socket host	http://localhost:6001
namespace	Event namespace	App.Events
…	Any other options, passed as socket params

Authorize private channels

To authorize channel requests we use Laravel Passport

In our BroadcastServiceProvider.php we need to enable

Broadcast::routes(['middleware' => ['auth:api']]);

then, when creating Echo instance include Authorization header with bearer token

echo = new Echo({
  'broadcaster': 'socket.io',
  'client': socket,
  'auth': {
    'headers': {
        'Authorization': 'Bearer $token'
    }
  }
});

Sample backend

Backend used for example app could be found at echo-server

Package by Kakajan SH

Download Details:

Author: kakajansh

Source Code: https://github.com/kakajansh/echo

#flutter #dart #mobile-apps