![]() Socket.IO is a library that enables us to use WebSocket easily with Node.js. Also, we’ll install the natural language processing service tool, API.AI in order to build an AI chatbot that can have an artificial conversation. To enable real-time bidirectional communication between the server and the browser, we’ll use Socket.IO. We are going to use Express, a Node.js web application server framework, to run the server locally. With the -save flag added, your package.json file will be automatically updated with the dependencies. Now, install all of the dependencies needed to build this app: $ npm install express socket.io apiai -save Also, this will generate a package.json file that contains the basic info for your app. The -f accepts the default setting, or else you can configure the app manually without the flag. Then, run this command to initialize your Node.js app: $ npm init -f Create your app directory, and set up your app’s structure like this. Make sure Node.js is installed on your machine, and then we’ll get started! Setting Up Your Node.js Applicationįirst, let’s set up a web app framework with Node.js. You’ll need to be comfortable with JavaScript and have a basic understanding of Node.js. The entire source code used for this tutorial is on GitHub. ![]() Once API.AI returns the response text back, use the SpeechSynthesis interface to give it a synthetic voice.Send the user’s message to a commercial natural-language-processing API as a text string.Use the Web Speech API’s SpeechRecognition interface to listen to the user’s voice.To build the web app, we’re going to take three major steps: A simple AI chat bot demo with Web Speech API
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