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How do I connect an AI chatbot to a database for personalized answers?

Asked on Sep 12, 2025

Answer

To connect an AI chatbot to a database for personalized answers, you need to establish a backend integration that allows the chatbot to query the database and retrieve user-specific information. This typically involves using a webhook or API call to interact with the database.
<!-- BEGIN COPY / PASTE -->
    const express = require('express');
    const app = express();
    const mysql = require('mysql');

    const db = mysql.createConnection({
      host: 'localhost',
      user: 'user',
      password: 'password',
      database: 'chatbot_db'
    });

    app.post('/webhook', (req, res) => {
      const userId = req.body.userId;
      db.query('SELECT * FROM users WHERE id = ?', [userId], (error, results) => {
        if (error) throw error;
        const personalizedResponse = `Hello ${results[0].name}, how can I assist you today?`;
        res.json({ fulfillmentText: personalizedResponse });
      });
    });

    app.listen(3000, () => console.log('Server is running on port 3000'));
    <!-- END COPY / PASTE -->
Additional Comment:
  • Ensure your database credentials are secure and not hardcoded in production environments.
  • Consider using ORM libraries like Sequelize for more complex database interactions.
  • Test the webhook endpoint thoroughly to handle various user scenarios and database states.
  • Implement error handling and logging to troubleshoot issues effectively.
✅ Answered with Chatbot best practices.

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