Create a chatbot that schedules meetings

Here’s a complete example of a simple chatbot that schedules meetings using Node.js with Express and stores appointments in memory. You can easily expand it with a database and natural language processing later.

Features:

• Accepts name, date, time, and purpose.

• Validates inputs.

• Displays scheduled meetings.

🛠 Requirements:

• Node.js

• Express

📁 Project Structure

pgsql
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meeting-bot/
│
├── index.js
├── package.json

Step 1: package.json

json
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{
  "name": "meeting-bot",
  "version": "1.0.0",
  "description": "A simple chatbot to schedule meetings",
  "main": "index.js",
  "scripts": {
    "start": "node index.js"
  },
  "dependencies": {
    "body-parser": "^1.20.2",
    "express": "^4.18.2"
  }
}

Step 2: index.js

javascript
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const express = require('express');
const bodyParser = require('body-parser');

const app = express();
const port = 3000;

let meetings = [];

app.use(bodyParser.json());

// Home route
app.get('/', (req, res) => {
  res.send('🤖 Meeting Scheduler Bot is running!');
});

// Get all meetings
app.get('/meetings', (req, res) => {
  res.json(meetings);
});

// Schedule a new meeting
app.post('/schedule', (req, res) => {
  const { name, date, time, purpose } = req.body;

  if (!name || !date || !time || !purpose) {
    return res.status(400).json({ message: 'Missing required fields' });
  }

  const meeting = {
    id: meetings.length + 1,
    name,
    date,
    time,
    purpose,
  };

  meetings.push(meeting);
  res.status(201).json({
    message: 'Meeting scheduled successfully',
    meeting,
  });
});

// Delete a meeting
app.delete('/cancel/:id', (req, res) => {
  const id = parseInt(req.params.id);
  const index = meetings.findIndex(m => m.id === id);

  if (index === -1) {
    return res.status(404).json({ message: 'Meeting not found' });
  }

  meetings.splice(index, 1);
  res.json({ message: 'Meeting cancelled' });
});

app.listen(port, () => {
  console.log(`📅 Scheduler Bot running at http://localhost:${port}`);
});

🚀 Test With Curl or Postman

Schedule Meeting

bash
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curl -X POST http://localhost:3000/schedule 
-H "Content-Type: application/json" 
-d '{"name": "Alice", "date": "2025-06-01", "time": "14:00", "purpose": "Project Update"}'

View Meetings

bash
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curl http://localhost:3000/meetings

Cancel Meeting

bash
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curl -X DELETE http://localhost:3000/cancel/1

💡 Optional Enhancements

• Use a database like MongoDB or PostgreSQL

• Add time conflict detection

• Integrate with a calendar API (Google Calendar, Outlook)

• Add front-end or chatbot UI (e.g., with Botpress, Dialogflow, or React)

Let me know if you’d like a web UI, integration with Google Calendar, or a chatbot interface using Telegram/Slack.