first commit

src/config/database.js

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+const { PrismaClient } = require('@prisma/client');
+const mongoose = require('mongoose');
+
+// PostgreSQL Connection (Prisma)
+const prisma = new PrismaClient({
+  log: process.env.NODE_ENV === 'development' ? ['query', 'info', 'warn', 'error'] : ['error'],
+});
+
+// MongoDB Connection (Mongoose)
+const connectMongoDB = async () => {
+  try {
+    await mongoose.connect(process.env.MONGODB_URI);
+    console.log('✅ MongoDB connected successfully');
+  } catch (error) {
+    console.error('❌ MongoDB connection error:', error);
+    process.exit(1);
+  }
+};
+
+// PostgreSQL Connection (Prisma)
+const connectPostgreSQL = async () => {
+  try {
+    await prisma.$connect();
+    console.log('✅ PostgreSQL connected successfully');
+  } catch (error) {
+    console.error('❌ PostgreSQL connection error:', error);
+    process.exit(1);
+  }
+};
+
+// Initialize all database connections
+const initializeDatabases = async () => {
+  await Promise.all([
+    connectPostgreSQL(),
+    connectMongoDB(),
+  ]);
+};
+
+// Graceful shutdown
+const closeDatabaseConnections = async () => {
+  try {
+    await Promise.all([
+      prisma.$disconnect(),
+      mongoose.connection.close(),
+    ]);
+    console.log('✅ Database connections closed');
+  } catch (error) {
+    console.error('❌ Error closing database connections:', error);
+  }
+};
+
+module.exports = {
+  prisma,
+  mongoose,
+  initializeDatabases,
+  closeDatabaseConnections,
+};

src/config/returnPolicy.js

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+// backend/config/returnPolicy.js
+module.exports = {
+  RETURN_WINDOW_DAYS: 7,
+  ALLOWED_STATUSES: ['DELIVERED'],
+};

src/config/s3.js

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+// config/s3.js
+// const  { S3Client } from "@aws-sdk/client-s3";
+const { S3Client } = require("@aws-sdk/client-s3");
+
+const s3 = new S3Client({
+  endpoint: "https://s3.sahasrarameta.tech",
+ region: process.env.AWS_REGION,
+  credentials: {
+    accessKeyId: process.env.AWS_ACCESS_KEY_ID,
+    secretAccessKey: process.env.AWS_SECRET_ACCESS_KEY,
+  },
+  forcePathStyle: true, // IMPORTANT for MinIO
+});
+
+// export default s3;
+module.exports = s3;