Build Chat with GetStream.io

Flutterappworld

5 years ago

Stream Chat Dart

stream-chat-dart is the official Dart client for Stream Chat, a service for building chat applications. This library can be used on any Dart project and on both mobile and web apps with Flutter.

You can sign up for a Stream account at https://getstream.io/chat/

Getting started

Add dependency

dependencies:
 stream_chat: ^0.1.21

You should then run flutter packages get

Alpha version

Use version ^0.2.0-alpha to use the latest available version.

Note that this is still an alpha version. There may be some bugs and the api can change in breaking ways.

Thanks to whoever tries these versions and reports bugs or suggestions.

Example Project

There is a detailed Flutter example project in the example folder. You can directly run and play on it.

At this link you can find the example compiled with Hummingbird

Setup API Client

First you need to instantiate a chat client. The Chat client will manage API call, event handling and manage the websocket connection to Stream Chat servers. You should only create the client once and re-use it across your application.

var client = Client("stream-chat-api-key");

Logging

By default the Chat Client will write all messages with level Warn or Error to stdout.

Change Logging Level

During development you might want to enable more logging information, you can change the default log level when constructing the client.

var client = Client("stream-chat-api-key", logLevel: Level.INFO);

Custom Logger

You can handle the log messages directly instead of have them written to stdout, this is very convenient if you use an error tracking tool or if you want to centralize your logs into one facility.

myLogHandlerFunction = (LogRecord record) {
  // do something with the record (ie. send it to Sentry or Fabric)
}

var client = Client("stream-chat-api-key", logHandlerFunction: myLogHandlerFunction);