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    LiveChat chat-sdk

    ​ Lightweight JavaScript SDK for LiveChat Messaging APIs. ​ Chat SDK was designed to help developers build apps in a quick and easy way. Under the hood, it makes use of the LiveChat Messaging APIs, taking care of this part for you. By default, Chat SDK comes with a method for sending plain text messages. Based on the method template we provide, you can easily build other methods. Thanks to that, you have the flexibility to cover the functionalities you need for your app. ​

    For full documentation, please head to LiveChat Docs. ​


    ​ The package can be installed directly from NPM. ​

    npm i @livechat/chat-sdk

    Initial configuration

    Parameter Required Data type Default Notes
    apiVersion false string v3.4 Call a different API version than the default one.
    debug false boolean false Display all messages exchanged with the LiveChat API.
    region false string america Specify a data center. Possible values: europe and america.
    const chatSDK = new ChatSDK({ debug: true })


    To use Chat SDK, you will need to provide an access token authorizing you with the Agent Chat API.

    If you don't know how to get one, make sure to check out these resources:



    ​ It initializes the WebSocket connection, attaches event listeners, and then logs in the Agent. ​

        access_token: access_token
        // OR 
        personal_access_token: personal_access_token


    Parameter Required Data type Notes
    access_token Yes/No1 string See Authorization to learn how to get an access token. Optionally, you can acquire it directly from Accounts SDK and pass it in to the init() method. The Simple Agent app uses this mechanism.
    personal_access_token Yes/No1 string See Authorization docs to learn how to get a Personal Access Token. Provided value should be encoded in base64.

    1) The init function requires one of the parameters to be provided.


    ​ It clears any stored resources, removes all listeners, and disconnects from the network. After using this method you won't be able to use the destroyed SDK instance. ​



    ​ It allows you to get information about the currently logged in Agent. ​

        .then(agentData => {
            // access to the agentData object
        .catch(error => {
            // catch an error object


    ​ It sends a plain text message. ​


    Argument Data type Notes
    chat_id string Id of chat that you want to send a message to.
    message string Message content
    recipients string Possible values: all (default), agents

    Returned value

    Value Data type
    event_id string
    const chatId = 'PJ0MRSHTDG'
    const message = 'Hello world'chatSDK.sendMessage(chatId, message)
        .then(event => {
            // get event_id or handle a success scenario
        .catch(error => {
            // catch an error object

    How to create other methods - methodFactory

    ​ This SDK supports the RTM transport. For that reason, make sure you use the Agent Chat API RTM reference. When creating your custom methods, base on the payloads from the Agent Chat RTM API methods. ​ In the example below, we're creating a custom method that returns a chat. As you can see in the documentation, only chat_id is required, but you can include other optional parameters in your custom method. ​

    const getChat = (chat_id) =>
        action: "get_chat",
        payload: { chat_id }
        .then(data => {
            // get a chat details with the latest thread (if exists)
        .catch(error => {
            // catch an error


    ​ The on method subscribes to emitted events. ​

    chatSDK.on("event_name", (data) => {

    Here's what you can listen for:

    Event name Action
    ready You've been successfully logged in. You're now ready to use all API methods.
    Pushes Refer to documentation.


    ​ The once method subscribes to emitted events and unsubscribes right after the callback function has been called. ​

    chatSDK.once("event_name", (data) => {


    ​ The off method unsubscribes from emitted events. ​"event_name", (data) => {

    Simple Agent - Example

    To show you Chat SDK in action, we've prepared a sample app, Simple Agent . Its primary function is to send text messages. Apart from that, it gives you access to previous conversations, as well as the info about the current Agent.

    To run the app, follow a few steps:

    1. Create an app in Developer Console.

    2. Add the Authorization building block. Configure it by entering http://localhost:3000/ in Redirect URI whitelist and by adding the following scopes:

      • chats--all:rw
      • chats--access:rw
      • customers:ro
      • multicast:ro
      • agents--all:ro
      • agents-bot--all:ro
    3. Go to the Private installation tab and install the app.

    4. Clone the Chat SDK repository from GitHub and go to the example folder.

    5. In Developer Console, go to the Authorization building block of your app.

    6. Copy Client Id and paste it into the .env file in the example folder.

    7. Run Simple Agent with the following commands (from the example folder perspective):

    npm install // install dependencies 
    npm start //start the app

    To start a chat, log in to you LiveChat account and choose the Preview live option available in the Settings tab. You'll now be able to receive messages and respond to them from within Simple Agent.

    It's worth mentioning that all functions invoked before logging in are queued. Once you're logged in, they are executed in the same order as they were invoked.


    ​ If you find some bugs or have troubles implementing the code on your own, please create an issue on this repo. ​

    If you're new to LiveChat

    ​ LiveChat is an online customer service software with live support, help desk software, and web analytics capabilities. It's used by more than 34,000 companies all over the world. For more info, check out LiveChat for Developers.



    npm i @livechat/chat-sdk

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