Start by creating a new project with npm init. Name your bot "weatherbot" (or something similar), and install the Slack and Natural APIs with the following command:
npm install @slack/client natural –save
Copy our Bot class from the previous chapters and enter the following in index.js:
'use strict';
// import the natural library
const natural = require('natural');
const Bot = require('./Bot');
// initalize the tokenizer
const tokenizer = new natural.WordTokenizer();
const bot = new Bot({
token: process.env.SLACK_TOKEN,
autoReconnect: true,
autoMark: true
});
// respond to any message that comes through
bot.respondTo('', (message, channel, user) => {
let tokenizedMessage = tokenizer.tokenize(message.text);
bot.send(`Tokenized message: ${JSON.stringify(tokenizedMessage)}`, channel);
});Start up your Node process and type a test phrase into Slack:
The returned tokenized message
Through the use of tokenization, the bot has split the given phrase into short fragments...