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Create Api EndPoint Send Alert if sell or stock is not updated for a Day #5

Open csharpnetframwork opened 4 days ago

csharpnetframwork commented 4 days ago

Create Api EndPoint Send Alert if sell or stock is not updated for a Day.

use - SMTP to Send Alert if Sell and Current stock is not updated for a Day.

codeautopilot[bot] commented 4 days ago

Potential solution

To solve the task of creating an API endpoint that sends an alert if sell or stock data is not updated for a day, we need to implement a system that checks the last update timestamps for these data points and sends an alert email if they haven't been updated within the last 24 hours. This involves setting up an API endpoint, configuring an SMTP client for sending emails, and implementing logic to check the update timestamps.

How to implement

  1. Set Up the API Endpoint: We will define a new API endpoint in src/routes/api.js that triggers the check for sell and stock updates.

  2. Configure SMTP Client: In src/utils/smtpClient.js, we will set up an SMTP client using nodemailer to send alert emails.

  3. Implement Database Interaction: In src/models/sellStockModel.js, we will create methods to retrieve the last update timestamps for sell and stock data.

  4. Define Alert Logic: In src/controllers/alertController.js, we will implement the logic to check the timestamps and send an alert if necessary.

Implementation Details

Step 1: Set Up the API Endpoint

File: src/routes/api.js

const express = require('express');
const router = express.Router();
const alertController = require('../controllers/alertController');

router.get('/check-updates', alertController.checkAndSendAlert);

module.exports = router;

Step 2: Configure SMTP Client

File: src/utils/smtpClient.js

const nodemailer = require('nodemailer');

const transporter = nodemailer.createTransport({
    host: 'your_smtp_host',
    port: 587,
    secure: false,
    auth: {
        user: 'your_email@example.com',
        pass: 'your_email_password'
    }
});

const sendAlertEmail = async (to, subject, text) => {
    try {
        const info = await transporter.sendMail({
            from: '"Alert System" <your_email@example.com>',
            to: to,
            subject: subject,
            text: text,
        });
        console.log('Message sent: %s', info.messageId);
    } catch (error) {
        console.error('Error sending email: ', error);
    }
};

module.exports = {
    sendAlertEmail
};

Step 3: Implement Database Interaction

File: src/models/sellStockModel.js

const { SellStock } = require('../database/models');

class SellStockModel {
  static async getLastSellUpdateTime() {
    try {
      const lastSellUpdate = await SellStock.findOne({
        attributes: ['updatedAt'],
        order: [['updatedAt', 'DESC']],
        where: { type: 'sell' }
      });
      return lastSellUpdate ? lastSellUpdate.updatedAt : null;
    } catch (error) {
      console.error('Error fetching last sell update time:', error);
      throw error;
    }
  }

  static async getLastStockUpdateTime() {
    try {
      const lastStockUpdate = await SellStock.findOne({
        attributes: ['updatedAt'],
        order: [['updatedAt', 'DESC']],
        where: { type: 'stock' }
      });
      return lastStockUpdate ? lastStockUpdate.updatedAt : null;
    } catch (error) {
      console.error('Error fetching last stock update time:', error);
      throw error;
    }
  }
}

module.exports = SellStockModel;

Step 4: Define Alert Logic

File: src/controllers/alertController.js

const sellStockModel = require('../models/sellStockModel');
const smtpClient = require('../utils/smtpClient');

async function checkAndSendAlert(req, res) {
    try {
        const lastSellUpdate = await sellStockModel.getLastSellUpdateTime();
        const lastStockUpdate = await sellStockModel.getLastStockUpdateTime();
        const oneDayAgo = new Date(Date.now() - 24 * 60 * 60 * 1000);

        if (lastSellUpdate < oneDayAgo || lastStockUpdate < oneDayAgo) {
            await smtpClient.sendAlertEmail(
                'recipient@example.com',
                'Alert: Sell or Stock Data Not Updated',
                'The sell or stock data has not been updated in the last 24 hours.'
            );
            res.status(200).send('Alert sent.');
        } else {
            res.status(200).send('No alert needed.');
        }
    } catch (error) {
        console.error('Error checking updates or sending alert:', error);
        res.status(500).send('Internal Server Error');
    }
}

module.exports = {
    checkAndSendAlert,
};

By following these steps, you will have a system that checks for updates and sends alerts if the sell or stock data is not updated for a day.

Click here to create a Pull Request with the proposed solution

Files used for this task:

Changes on src/routes/api.js To address the task for the `src/routes/api.js` file, you need to define a new API endpoint that will trigger the check for sell and stock updates. Here's a practical proposal for implementing this: 1. **Set Up Express Router**: If not already set up, initialize an Express router to handle API routes. 2. **Define the Endpoint**: Create a new route that will be responsible for triggering the alert check. This could be a GET or POST request, depending on how you want to trigger it (e.g., manually via a request or automatically via a scheduled task). 3. **Connect to Controller**: Ensure that this route calls a function from the `alertController.js` file, which will handle the logic for checking updates and sending alerts. Here's a basic example of how you might implement this in `src/routes/api.js`: ```javascript const express = require('express'); const router = express.Router(); const alertController = require('../controllers/alertController'); // Define the endpoint to check sell and stock updates router.get('/check-updates', alertController.checkUpdates); module.exports = router; ``` ### Explanation: - **Express Router**: This sets up a router instance to define routes. - **Endpoint Definition**: The `/check-updates` endpoint is defined to handle GET requests. It calls the `checkUpdates` method from the `alertController`. - **Export Router**: Finally, the router is exported so it can be used in the main application file to integrate with the Express app. This setup assumes that the `alertController.js` file has a method named `checkUpdates` that performs the necessary logic to check the last update times and send alerts if needed.
Changes on src/utils/smtpClient.js To address the task for the `src/utils/smtpClient.js` file, you need to configure SMTP settings and implement a function to send alert emails. Here's a practical proposal for how to achieve this: 1. **Configure SMTP Settings**: Set up the SMTP configuration using a library like `nodemailer`. This will involve specifying the SMTP host, port, and authentication details. 2. **Implement Email Sending Function**: Create a function that takes parameters such as recipient email, subject, and message body. This function will use the SMTP configuration to send an email. Here's a basic implementation outline: ```javascript // src/utils/smtpClient.js const nodemailer = require('nodemailer'); // Configure SMTP settings const transporter = nodemailer.createTransport({ host: 'your_smtp_host', // e.g., 'smtp.gmail.com' port: 587, // or 465 for secure secure: false, // true for 465, false for other ports auth: { user: 'your_email@example.com', // your email pass: 'your_email_password' // your email password } }); // Function to send alert email const sendAlertEmail = async (to, subject, text) => { try { const info = await transporter.sendMail({ from: '"Alert System" ', // sender address to: to, // list of receivers subject: subject, // Subject line text: text, // plain text body }); console.log('Message sent: %s', info.messageId); } catch (error) { console.error('Error sending email: ', error); } }; module.exports = { sendAlertEmail }; ``` ### Steps to Implement: - **Install Nodemailer**: Ensure `nodemailer` is installed in your project by running `npm install nodemailer`. - **Configure SMTP**: Replace `'your_smtp_host'`, `'your_email@example.com'`, and `'your_email_password'` with actual SMTP server details and credentials. - **Test the Function**: Use the `sendAlertEmail` function in your application to send test emails and ensure it works correctly. This setup will allow your application to send alert emails when the sell or stock data is not updated for a day, as specified in the task.
Changes on src/models/sellStockModel.js To address the task for the `src/models/sellStockModel.js` file, you need to implement methods that can retrieve the last update time for both sell and stock data. Here's a practical proposal for what you can do: 1. **Define the Model Structure**: If not already defined, create a model structure that includes fields for sell and stock data along with their respective timestamps. 2. **Implement Methods**: - Create methods to fetch the last update timestamp for sell data. - Create methods to fetch the last update timestamp for stock data. 3. **Database Interaction**: Ensure these methods interact with the database to retrieve the necessary timestamps. This might involve querying a database table where sell and stock updates are logged. Here's a basic example of what the implementation might look like: ```javascript // Assuming a database connection and ORM (like Sequelize) is set up const { SellStock } = require('../database/models'); // Adjust the path as necessary class SellStockModel { // Method to get the last update time for sell data static async getLastSellUpdateTime() { try { const lastSellUpdate = await SellStock.findOne({ attributes: ['updatedAt'], order: [['updatedAt', 'DESC']], where: { type: 'sell' } // Assuming 'type' differentiates sell and stock }); return lastSellUpdate ? lastSellUpdate.updatedAt : null; } catch (error) { console.error('Error fetching last sell update time:', error); throw error; } } // Method to get the last update time for stock data static async getLastStockUpdateTime() { try { const lastStockUpdate = await SellStock.findOne({ attributes: ['updatedAt'], order: [['updatedAt', 'DESC']], where: { type: 'stock' } // Assuming 'type' differentiates sell and stock }); return lastStockUpdate ? lastStockUpdate.updatedAt : null; } catch (error) { console.error('Error fetching last stock update time:', error); throw error; } } } module.exports = SellStockModel; ``` **Notes**: - Adjust the database model and query logic based on your actual database schema and ORM. - Ensure error handling is robust to manage any database connectivity issues. - This file should be integrated with the rest of the application to ensure it is called appropriately when checking for updates.
Changes on src/controllers/alertController.js To implement the logic in `src/controllers/alertController.js`, follow these steps: 1. **Import Necessary Modules:** - Import the model that provides access to sell and stock data (e.g., `sellStockModel`). - Import the SMTP client utility to send emails (e.g., `smtpClient`). 2. **Define the Alert Logic:** - Create a function that retrieves the last update timestamps for both sell and stock data using methods from `sellStockModel`. - Compare these timestamps with the current date to determine if they haven't been updated in the last 24 hours. 3. **Trigger an Alert:** - If either the sell or stock data hasn't been updated in the last day, use the SMTP client to send an alert email. 4. **Export the Function:** - Ensure the function is exported so it can be used by the API endpoint defined in `src/routes/api.js`. Here's a basic outline of how the code might look: ```javascript const sellStockModel = require('../models/sellStockModel'); const smtpClient = require('../utils/smtpClient'); async function checkAndSendAlert() { try { const lastSellUpdate = await sellStockModel.getLastSellUpdate(); const lastStockUpdate = await sellStockModel.getLastStockUpdate(); const oneDayAgo = new Date(Date.now() - 24 * 60 * 60 * 1000); if (lastSellUpdate < oneDayAgo || lastStockUpdate < oneDayAgo) { await smtpClient.sendAlertEmail({ subject: 'Alert: Sell or Stock Data Not Updated', body: 'The sell or stock data has not been updated in the last 24 hours.', }); } } catch (error) { console.error('Error checking updates or sending alert:', error); } } module.exports = { checkAndSendAlert, }; ``` This implementation assumes that `sellStockModel` has methods like `getLastSellUpdate` and `getLastStockUpdate` to fetch the last update times, and `smtpClient` has a method `sendAlertEmail` to send emails. Adjust the function names and logic as per your actual implementation details.