Natural Performance Manager

    xom-stream-chat-react
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    0.8.1 • Public • Published

    React Chat Components

    react native chat

    The official React components for Stream Chat, a service for building chat applications.

    NPM Build Status Component Reference

    Quick Links

    With these chat components you can support any type of chat use case:

    • Livestreams like Twitch or Youtube
    • In-Game chat like Overwatch or Fortnite
    • Team style chat like Slack
    • Messaging style chat like Whatsapp or Facebook's messenger
    • Commerce chat like Drift or Intercom

    React Chat Tutorial

    The best place to start is the React Chat Tutorial. It teaches you how to use this SDK and also shows how to make common changes.

    Example Apps

    This repo includes 4 example apps. You can try them out like this:

    git clone git@github.com:GetStream/stream-chat-react.git
    cd examples/messaging
    yarn
    yarn start
    

    The 4 examples are messaging, team, commerce and livestream. You can also preview these demos online in the Chat Demos

    Docs

    The styleguidist docs for stream-chat-react document how all the components work.

    The React components are created using the stream-chat-js library. If you're customizing the components it's important to learn how the Chat Server API works. You'll want to review our JS chat API docs.

    Commands

    • yarn docs-server
    • yarn lint-fix
    • yarn lint

    Component Reusability

    1. If a component implements a ton of logic it's nice if you split it out into 2 Components The top level component which handles all the logic, and a lower level component which just handles rendering. This makes it easy to change the rendering without having to touch the other stuff. Have a look at Message and MessageTeam to see how this approach works.

    2. Make things configurable via the props where possible. Sometimes an even better approach is to use the props.children approach. Have a look at how flexible the channel layout is due to this approach:

    <Channel>
      <Window>
        <ChannelHeader type="Team" />
        <MessageList />
        <MessageInput />
      </Window>
      <Thread />
    </Channel>

    Customizing styles

    stream-chat-react uses scss for styling. There may be times when you want to make simple changes to our stylesheets and don't want to manually override classes and styles. To make these customizations you can do the following:

    • Clone this repository
    • Make the changes you want in the scss files
    • Run yarn build-styles or yarn watch-styles

    Performance

    Since chat can get pretty active it's important to pay attention to performance. For every component either:

    • Implement shouldComponentUpdate
    • Extend PureComponent

    You can verify if the update behaviour is correct by sticking this code in your component:

    import React from 'react';
    import diff from 'shallow-diff';
     
    export default class MyComponent extends React.Component {
      shouldComponentUpdate(nextProps) {
        console.log(diff(this.props, nextProps));
      }
    }

    Note that the PureComponent uses a shallow diff to determine if a component should rerender upon state change. The regular Component simply always rerenders when there is a state change.

    You can read more about PureComponents and common gotchas here: https://codeburst.io/when-to-use-component-or-purecomponent-a60cfad01a81

    You want the shallow diff to only be true if something actually changed. Common mistakes that hurt performance are:

    • Mistake: Passing anonymous functions (those are different every time)
    • Solution: Use a regular function
    • Mistake: Passing an object {} or an array [] that's not using seamless-immutable
    • Solution: Use an immutable type (ie a number or a string) or use a seamless immutable version of an object or an array

    Contributing

    We welcome code changes that improve this library or fix a problem, please make sure to follow all best practices and add tests if applicable before submitting a Pull Request on Github. We are very happy to merge your code in the official repository. Make sure to sign our Contributor License Agreement (CLA) first. See our license file for more details.

    Install

    npm i xom-stream-chat-react

    DownloadsWeekly Downloads

    103

    Version

    0.8.1

    License

    none

    Unpacked Size

    10.6 MB

    Total Files

    30

    Last publish

    Collaborators

    • jmiller-xom