react-web-chat
react-web-chat
is an instant messaging UI built with React.
Table of contents
Installation
Simply install it with your favorite package manager:
npm install --save-dev react-web-chat
yarn add react-web-chat
Usage
As a stand-alone module
The stand-alone version of the module will render to a supplied dom element.
It accepts the following parameters:
Argument | Description | Required | Type |
---|
url | The url of your chat server | yes | String |
element | The element react-web-chat should render to | yes | Element |
theme | A custom theme | no | Object |
client | A custom client | no | Object |
typingStatus | Configuration options for the typing status indicator. Note! This delay will be a compounded value as per all the settings you provide. | no | Object |
network | Configuration options for network communication of the default Feersum Client (NOTE! Required if using the default client, channel_id field must also be specified else the Feersum Client connection will fail! See below example.) | no | Object |
Communication with the module is handled via custom events described here.
Fully configured example
new ReactWebChat({
url: 'http://localhost:8000',
element: myChatElement,
typingStatus: {
active: true || false,
baseDelay: 500,
variance: 250,
letterDelay: 30,
minDelay: 200,
maxDelay: 3000
},
network: {
channel_id: 'f8472758-f804-4a7e-a225-5e303e121099',
address: 'a6424358-g73g-7h8d-92m8-6s890g5892n07',
startNew: true,
retransmissionTimeout: 500,
retransmissionTimeoutMax: 1000,
retransmissionAttempts: 10,
eventNamespace: "rwc"
}
}
});
ES6
import ReactWebChat from 'react-web-chat';
let myChatElement = document.getElementByID('my-chat-element');
const reactWebChat = new ReactWebChat({
url: 'http://localhost:8000',
element: myChatElement
});
CommonJS
var ReactWebChat = require('react-web-chat').default;
var myChatElement = document.getElementByID('my-chat-element');
var reactWebChat = new ReactWebChat({
url: 'http://localhost:8000',
element: myChatElement
});
UMD
react-web-chat
is also available as a UMD module. Simply load the module and instantiate a new instance as described in the example below.
NOTE: react
and react-dom
are peer dependencies so make sure they are loaded too
<html>
<head>
<script crossorigin src="https://unpkg.com/react@16/umd/react.production.min.js"></script>
<script crossorigin src="https://unpkg.com/react-dom@16/umd/react-dom.production.min.js"></script>
<script src="https://unpkg.com/react-web-chat@1.1.2/umd/react-web-chat.js"/>>
</head>
<body>
<div id="my-chat-element">
</body>
<script>
var myChatElement = document.getElementByID('my-chat-element');
var reactWebChat = new ReactWebChat.default({
url: 'http://localhost:8080',
element: reactWebChat
});
</script>
</html>
As a react component
The exported ReactWebChatComponent
can be used within an existing react application.
It accepts the following parameters:
Argument | Description | Required | Type |
---|
url | The url of your chat server | yes | String |
theme | A custom theme | no | Object |
client | A custom client | no | Object |
Example
import { ReactWebChatComponent } from 'react-web-chat';
const MyComponent = props => (
<div>
<ReactWebChatComponent url="http://localhost:8080" />
</div>
);
Custom events
Communication with the react-web-chat
module is handled via a series of custom events.
Listening
Custom react-web-chat
events are namespaced using the rwc-
prefix.
Any dispatched redux action will fire a custom event using the following type:
rwc-ACTION_TYPE
Example:
window.addEventListener('rwc-MESSAGE_RECEIVE', function(data) {
});
The data
parameter object adheres to the CustomEvent specification:
https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent
A full list of actions to listen for:
- rwc-MESSAGE_ADD
- rwc-MESSAGE_SEND
- rwc-MESSAGE_RECEIVE
- rwc-MESSAGE_QUEUE
- rwc-CONNECTION_ESTABLISHED
- rwc-CONNECTION_ATTEMPTED
- rwc-CONNECTION_DROPPED
- rwc-CONNECTION_LISTENING
Note: event namespaces can be configured by passing in the following configuration to the constructor:
new ReactWebChat({
network: {
eventNamespace: "your-custom-namespace"
}
}
This will result in the following event type:
your-custom-namespace-ACTION_TYPE
Dispatching
Dispatching an event follows the same namespaced convention as described above.
However not all redux actions can be dispatched via custom events.
Currently only the MESSAGE_SEND
action type is supported.
More action types may be supported in future releases if justifiable use cases can be demonstrated.
Example:
function sendRWCMessage() {
var rwcEvent = window.CustomEvent('rwc-MESSAGE_SEND', {
detail: {
payload: message
}
});
window.dispatchEvent(rwcEvent);
}
var message = {
type: 'message',
layout: 'plain',
pages: [
{
text: 'Hello world'
}
]
};
sendRWCMessage(message);
Custom themes
react-web-chat
allows you to inject custom react components for specific parts of the UI.
Any components not specified in the custom theme object will use the default theme's components.
The following components can be overridden:
Please consult the API documentation as a guide to help you develop custom components for your themes.
Example
import { ReactWebChatComponent } from 'react-web-chat';
import React from 'react';
import Avatar from './customTheme/Avatar';
import Button from './customTheme/Button';
import Input from './customTheme/Input';
const MyComponent = props => (
<div>
<ReactWebChatComponent
url="http://localhost:8080"
theme={{
AvatarComponent: Avatar,
ButtonComponent: Button,
InputComponent: Input
}}
/>
</div>
);
Custom network clients
react-web-chat
supports custom network clients to manage network communication with your server.
Network clients have the following responsibilities:
- determine which protocol/standard to use (WS, socket.io, HTTP, XHR, Fetch, etc.)
- translate messages to a format the server understands
Currently the only available client is rwc-feersum-client
.
It's also the default client used by react-web-chat
which happens to make use the feersum message schema.
Further reading:
In future there will hopefully be several clients to support a wider range of IM back-ends.
Writing your own network client
Writing a custom network client is easy :) All you need is an object with the following methods:
const feersumClient = {
init(url) {
},
send(message) {
},
onmessage(fn) {
},
onclose(fn) {
}
};