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feat: Implement real-time stock updates using WebSockets (#178) #278

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feat: Implement real-time stock updates using WebSockets (#178) #278

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14 changes: 14 additions & 0 deletions BACKEND/config/db.js
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,20 @@ export const connectDB = async () => {
const memoryUri = mongoServer.getUri();
await mongoose.connect(memoryUri);
console.log(`MongoDB In-Memory Connected: Development Mode`);

try {
const Product = (await import("../models/product.model.js")).default;
const count = await Product.countDocuments();
if (count === 0) {
await Product.create([
{ name: "Gaming Laptop Pro", price: 1299, image: "https://images.unsplash.com/photo-1593642632823-8f785ba67e45?w=500", stock: 15, category: "Electronics", brand: "TechBrand" },
{ name: "Wireless Mouse", price: 49, image: "https://images.unsplash.com/photo-1527864550417-7fd91fc51a46?w=500", stock: 50, category: "Electronics", brand: "TechBrand" }
]);
console.log(`MongoDB In-Memory Seeded with mock data.`);
}
} catch (seedErr) {
console.error("Failed to seed in-memory DB:", seedErr.message);
}
} else {
// Connect to the provided MongoDB URI
const conn = await mongoose.connect(mongoURI);
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7 changes: 7 additions & 0 deletions BACKEND/controllers/checkout.controller.js
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Expand Up @@ -4,6 +4,7 @@ import Coupon from '../models/coupon.model.js';
import mongoose from 'mongoose';
import Stripe from 'stripe';
import { processReferralOnPurchase } from '../services/referral.service.js';
import { io } from '../server.js';

let stripe;
if (process.env.NODE_ENV === 'test') {
Expand Down Expand Up @@ -206,6 +207,12 @@ export const stripeWebhook = async (req, res) => {
return res.json({ received: true });
}

// Emit real-time stock update
io.emit("stockUpdate", {
productId: item._id,
newStock: updated.stock - item.quantity
});

deductions.push({ productId: item._id, quantity: item.quantity });
}

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