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Version: 1.4.x

Own your first AI Human

In this chapter, we will quickly look at AIHuman(AIPlayer) setup process and make the default AI say a sentence. When running AIPlayer for the first time, it may take several minutes to load resources depending on the network condition. The progress of this loading process can be monitored.



1. Include the SDK and Ready the AIPlayer in the web page

<script src="https://cdn-aihuman.deepbrainai.io/sdk/web/aiPlayer-1.4.1.min.js"></script>

<div id="AIPlayerWrapper"></div>
const wrapper = document.getElementById("AIPlayerWrapper");
const AI_PLAYER = new AIPlayer(wrapper);

2. Authenticate the SDK

2.1. Enter appId and get userKey from SDK website

  • Create a project in SDK website
  • Enter the appId for the web appId. Then userkey will be issued.

2.2. Create ClientToken API on your Server

  • Next, for SDK authentication, clientToken is needed.
  • The clientToken generation api should be implemented on your server, so that the client can request when it needs.
  • Below is how to install jsonwebtoken lib for JWT on your server.(Note: JWT)
npm install jsonwebtoken
  • Below is an example of creating clientToken from nodejs.
  // generateJWT.js(Server)

  const jwt = require("jsonwebtoken");

  const userKey = "...";  // TODO: userKey input
  const payload = {
    appId: "...",  // TODO: appId input
    platform: "web"
  };
  const options = {
    header: { typ: "JWT", alg: "HS256" }, 
    expiresIn: 60 * 5 // expire time: 5 mins
  };

  function generateJWT(req, res) {
    try {
      const clientToken = jwt.sign(payload, userKey, options);

      res.json({ appId: payload.appId, token: clientToken });
    } catch (e) {
      console.log("jwt generate err ", e.name, e.message);
    }
  }
  • Below is an example of routing the generateJWT function for next.js.
  // generateJWT.js(Server) append
  export default (req, res) => {
    if (req.method === "GET") return generateJWT(req, res);

    // if (req.method === "POST") return generateJWT(req, res);
  };
  • And Below is an example of routing the generateJWT function for express.
  // generateJWT.js(Server)
  module.export = generateJWT;
  const express = require('express');
  const app = express();
  const generateJWT = require("..."); // TODO: generateJWT.js access path

  app.get('/generateJWT', generateJWT);
  // app.post('/generateJWT', generateJWT);

2.3. Request generateJWT (requestClientToken) from Client to Server

// quickStart.js(Client)

async function requestClientToken() {
  // TODO: Server generateJWT request address input
  // for example : const result = await makeRequest("GET", "/api/generateJWT");
  const result = await makeRequest("GET", "..."); 

  // Success
  DATA.appId = result.appId;
  DATA.clientToken = result.token;
  // ...
}

2.4. generateToken request

  • After the 'requestClientToken' call is succeeded, then call AIPlayer's "generateToken" function with appId and clientToken. It responds with JSON containing information such as verifiedToken, tokenExpire, and defaultAI. The 'generateToken' call succeeds means the authication is completed. For more info, refer to APIsection.
  // quickStart.js(Client)

  async function generateVerifiedToken() {
    const result = await AI_PLAYER.generateToken({ appId: DATA.appId, token: DATA.clientToken });
    
    if (result?.succeed) {
      DATA.verifiedToken = result.token;
      DATA.tokenExpire = result.tokenExpire;
      DATA.defaultAI = result.defaultAI;
    }
  }

3. Initialize AIPlayer

After successful authentication, the AIPlayer needs to be initialized using the init function. At this time, it can be set with defaultAI. If you want to use other AIs, you can get a list of available AIs through the getAIList function. For details, please refer to AIPlayer section.

// quickStart.js(Client)

await AI_PLAYER.init({
    aiName: DATA.defaultAI.ai_name, zIndex: 0, size: 1.0, left: 0, top: 0, speed: 1.0
});

4. Let's make AIPlayer's callback and monitor the event of AIPlayer

You can set AIPlayer's listener for AI events like below. And notice that you can call send function when resource-loading is completed(AIEventType.RES_LOAD_COMPLETED). 

function initAIPlayerEvent() {
  AI_PLAYER.onAIPlayerEvent = function (aiEvent) {
    switch (aiEvent.type) {
      //...
      case AIEventType.RES_LOAD_COMPLETED:
        //AI_PLAYER.send({text:"Nice to meet you."})
        document.getElementById("AIPlayerTexts").style.display = "grid";
        break
    }
  };
}

5. Full Client Sample Source Code

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8" />
    <title>AIPlayer JavaScript SDK Quick Start</title>
  </head>
  <style>
    html, body, #AIPlayerWrapper {
      height: 100%;
    }
</style>
  <body style="height:100%">
    <div style="display: none; width: fit-content;" id="AIPlayerTexts">
      <button onclick="speak(this.innerHTML)">How are you?</button>
      <button onclick="speak(this.innerHTML)">Nice to see you!</button>
    </div>
    <div id="AIPlayerWrapper"></div>
  </body>

  <script src="https://cdn-aihuman.deepbrainai.io/sdk/web/aiPlayer-1.4.1.min.js"></script>
  <script src="./quickStart.js"></script>
</html>

const wrapper = document.getElementById("AIPlayerWrapper");
const AI_PLAYER = new AIPlayer(wrapper);

const DATA = {};

initSample();

async function initSample() {
  initAIPlayerEvent();

  await generateClientToken();
  await generateVerifiedToken();

  await AI_PLAYER.init({
    aiName: DATA.defaultAI.ai_name, size: 1.0, left: 0, top: 0, speed: 1.0 });
}

async function generateClientToken() {
  const result = await makeRequest("GET", "..."); // TODO: Server generateJWT request address input

  // if Success
  DATA.appId = result.appId;
  DATA.clientToken = result.token;
  // ...
}

async function generateVerifiedToken() {
  const result = await AI_PLAYER.generateToken({ appId: DATA.appId, token: DATA.clientToken });
  if (result?.succeed) {
    DATA.verifiedToken = result.token;
    DATA.tokenExpire = result.tokenExpire;
    DATA.defaultAI = result.defaultAI;
  }
}

//AIEvent & callback 
const AIEventType = Object.freeze({
    RES_LOAD_STARTED: 0,
    RES_LOAD_COMPLETED: 1,
    AICLIPSET_PLAY_PREPARE_STARTED: 2,
    AICLIPSET_PLAY_PREPARE_COMPLETED: 3,
    AICLIPSET_PRELOAD_STARTED: 4,
    AICLIPSET_PRELOAD_COMPLETED: 5,
    AICLIPSET_PRELOAD_FAILED: 6,
    AICLIPSET_PLAY_STARTED: 7,
    AICLIPSET_PLAY_COMPLETED: 8,
    AICLIPSET_PLAY_FAILED: 9,
    AI_CONNECTED: 10,
    AI_DISCONNECTED: 11,
    AIPLAYER_STATE_CHANGED: 14,
    UNKNOWN: -1,
  })

function initAIPlayerEvent() {
  AI_PLAYER.onAIPlayerEvent = function (aiEvent) {
    switch (aiEvent.type) {
      case AIEventType.RES_LOAD_COMPLETED:
        //AI_PLAYER.send({text:"Nice to meet you."})
        document.getElementById("AIPlayerTexts").style.display = "grid";
        break
    }
  };
}

function speak(text) {
  AI_PLAYER.send(text);
}

// sample Server request function
async function makeRequest(method, url, params) {
  const options = { method, headers: { "Content-Type": "application/json; charSet=utf-8" } };

  if (method === "POST") options.body = JSON.stringify(params || {});

  return fetch(url, options)
    .then((response) => response.json())
    .then((data) => data)
    .catch((error) => {
      console.error("** An error occurred during the fetch", error);
      showPop("Generate Client Token Error", `no client token can be generated.`);
      return undefined;
    });
}

6. Full Server Sample Source Code

// generateJWT.js(Server)

const jwt = require("jsonwebtoken");

const userKey = "..."; // TODO: userKey input
const payload = { 
  appId: "...", // TODO: appId input
  platform: "web"
};
const options = {
  header: { typ: "JWT", alg: "HS256" },
  expiresIn: 60 * 5 // expire time: 5 mins
};

function generateJWT(req, res) {
  try {
    const clientToken = jwt.sign(payload, userKey, options);

    res.json({ token: clientToken, appId: payload.appId });
  } catch (e) {
    console.log("jwt generate err ", e.name, e.message);
  }
}

// next.js
export default (req, res) => {
  if (req.method === "GET") return generateJWT(req, res);
};