Integrate a Custom Chat Client with Flex

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const AccessToken = require('twilio').jwt.AccessToken;
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const ChatGrant = AccessToken.ChatGrant;
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// Used when generating any kind of tokens
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// To set up environmental variables, see http://twil.io/secure
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const twilioAccountSid = process.env.TWILIO_ACCOUNT_SID;
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const twilioApiKey = process.env.TWILIO_API_KEY;
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const twilioApiSecret = process.env.TWILIO_API_SECRET;
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// Used specifically for creating Chat tokens
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const serviceSid = process.env.TWILIO_CHAT_SERVICE_SID;
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const identity = 'user@example.com';
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// Create a "grant" which enables a client to use Chat as a given user,
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// on a given device
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const chatGrant = new ChatGrant({
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  serviceSid: serviceSid,
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});
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// Create an access token which we will sign and return to the client,
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// containing the grant we just created
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const token = new AccessToken(
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  twilioAccountSid,
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  twilioApiKey,
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  twilioApiSecret,
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  {identity: identity}
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);
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token.addGrant(chatGrant);
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// Serialize the token to a JWT string
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console.log(token.toJwt());

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// Download the helper library from https://www.twilio.com/docs/node/install
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const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";
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// Find your Account SID and Auth Token at twilio.com/console
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// and set the environment variables. See http://twil.io/secure
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const accountSid = process.env.TWILIO_ACCOUNT_SID;
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const authToken = process.env.TWILIO_AUTH_TOKEN;
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const client = twilio(accountSid, authToken);
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async function createChannel() {
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  const channel = await client.flexApi.v1.channel.create({
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    chatFriendlyName: "Chat with abc123",
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    chatUserFriendlyName: "Jane",
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    flexFlowSid: "FOaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
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    identity: "abc123",
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    target: "abc123",
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  });
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  console.log(channel.accountSid);
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}
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createChannel();