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    socketcluster-client
    DefinitelyTyped icon, indicating that this package has TypeScript declarations provided by the separate @types/socketcluster-client package

    16.0.4 • Public • Published

    SocketCluster JavaScript client

    Client module for SocketCluster.

    Setting up

    You will need to install both socketcluster-client and socketcluster-server (https://github.com/SocketCluster/socketcluster-server).

    To install this module:

    npm install socketcluster-client

    How to use

    The socketcluster-client script is called socketcluster-client.js (located in the main socketcluster-client directory). Embed it in your HTML page like this:

    <script type="text/javascript" src="/socketcluster-client.js"></script>

    * Note that the src attribute may be different depending on how you setup your HTTP server.

    Once you have embedded the client socketcluster-client.js into your page, you will gain access to a global socketClusterClient object. You may also use CommonJS require or ES6 module imports.

    Connect to a server

    let socket = socketClusterClient.create({
      hostname: 'localhost',
      port: 8000
    });

    Transmit data

    // Transmit some data to the server.
    // It does not expect a response from the server.
    // From the server socket, it can be handled using either:
    // - for await (let data of socket.receiver('foo')) {}
    // - let data = await socket.receiver('foo').once()
    socket.transmit('foo', 123);

    Invoke an RPC

    (async () => {
    
      // Invoke an RPC on the server.
      // It expects a response from the server.
      // From the server socket, it can be handled using either:
      // - for await (let req of socket.procedure('myProc')) {}
      // - let req = await socket.procedure('myProc').once()
      let result = await socket.invoke('myProc', 123);
    
    })();

    Subscribe to a channel

    (async () => {
    
      // Subscribe to a channel.
      let myChannel = socket.subscribe('myChannel');
    
      await myChannel.listener('subscribe').once();
      // myChannel.state is now 'subscribed'.
    
    })();

    Get a channel without subscribing

    (async () => {
    
      let myChannel = socket.channel('myChannel');
    
      // Can subscribe to the channel later as a separate step.
      myChannel.subscribe();
      await myChannel.listener('subscribe').once();
      // myChannel.state is now 'subscribed'.
    
    })();

    Publish data to a channel

    // Publish data to the channel.
    myChannel.transmitPublish('This is a message');
    
    // Publish data to the channel from the socket.
    socket.transmitPublish('myChannel', 'This is a message');
    
    (async () => {
      // Publish data to the channel and await for the message
      // to reach the server.
      try {
        await myChannel.invokePublish('This is a message');
      } catch (error) {
        // Handle error.
      }
    
      // Publish data to the channel from the socket and await for
      // the message to reach the server.
      try {
        await socket.invokePublish('myChannel', 'This is a message');
      } catch (error) {
        // Handle error.
      }
    })();

    Consume data from a channel

    (async () => {
    
      for await (let data of myChannel) {
        // ...
      }
    
    })();

    Connect over HTTPS:

    let options = {
      hostname: 'securedomain.com',
      secure: true,
      port: 443,
      rejectUnauthorized: false // Only necessary during debug if using a self-signed certificate
    };
    // Initiate the connection to the server
    let socket = socketClusterClient.create(options);

    For more detailed examples of how to use SocketCluster, see test/integration.js. Also, see tests from the socketcluster-server module.

    Connect Options

    See all available options: https://socketcluster.io/

    let options = {
      path: '/socketcluster/',
      port: 8000,
      hostname: '127.0.0.1',
      autoConnect: true,
      secure: false,
      rejectUnauthorized: false,
      connectTimeout: 10000, //milliseconds
      ackTimeout: 10000, //milliseconds
      channelPrefix: null,
      disconnectOnUnload: true,
      autoReconnectOptions: {
        initialDelay: 10000, //milliseconds
        randomness: 10000, //milliseconds
        multiplier: 1.5, //decimal
        maxDelay: 60000 //milliseconds
      },
      authEngine: null,
      codecEngine: null,
      subscriptionRetryOptions: {},
      query: {
        yourparam: 'hello'
      }
    };

    Running the tests

    • Clone this repo: git clone git@github.com:SocketCluster/socketcluster-client.git
    • Navigate to project directory: cd socketcluster-client
    • Install all dependencies: npm install
    • Run the tests: npm test

    Compatibility mode

    For compatibility with an existing SocketCluster server, set the protocolVersion to 1 and make sure that the path matches your old server path:

    let socket = socketClusterClient.create({
      protocolVersion: 1,
      path: '/socketcluster/'
    });

    Developing

    Install all dependencies

    cd socketcluster-client
    
    npm install -g gulp gulp-cli browserify uglify-es
    
    npm install

    Building

    To build the SocketCluster client:

    npm run build

    Change log

    See the 'releases' section for changes: https://github.com/SocketCluster/socketcluster-client/releases

    License

    (The MIT License)

    Copyright (c) 2013-2019 SocketCluster.io

    Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

    The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

    Install

    npm i socketcluster-client

    DownloadsWeekly Downloads

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    Version

    16.0.4

    License

    MIT

    Unpacked Size

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    Total Files

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