Project Overview

Learning from a Tips JavaScript channel. Built with NestJS.

Technologies Used in the Project

1. Backend Frameworks:

• Node.js
• NestJS

2. Authentication and Authorization:

• JWT (JSON Web Tokens) for authentication.
• API Key and permissions middleware.
• Role-based access control system.

3. Database:

• NoSQL Databases:
  • MongoDB using Mongoose.

4. Caching and Messaging:

• Redis:
  • Data structures (String, Hash, List, Set, ZSet).
• Message Queues:
  • Kafka
  • RabbitMQ (message ordering, TTL, failure handling).

5. File Upload and Management:

• Multer for file handling.
• Cloudinary for cloud-based file storage and optimization.

6. Advanced API Features:

• Factory Pattern for dynamic API endpoints.
• Polymorphic relationships in Product API.
• Optimistic concurrency control with Redis.

7. Logging and Monitoring:

• Discord for logging API activities.

8. System Design:

• Microservices architecture with message queue integration.

9. API Documentation:

• Swagger for documenting RESTful APIs.

Notable Features:

• Nested comments system.
• SKU and SPU design for eCommerce product data.
• Optimized order and cart management.
• OTP email verification.
• Scalable architecture with a focus on high performance and fault tolerance.

Note list (Todos list)

• Set up project structure and required packages.
• Connect MongoDB to Node.js using Mongoose.
• Implement multi-level .env configuration.
• Sign up shop API ✅
• Middleware
  • API key and permissions ✅
• Error Handling
  • Handle API errors ✅
  • Standardize API responses with a class ✅
• Write API login ✅
• Write API logout ✅
• Handle refresh token
  • Detect and mitigate reused tokens ✅
  • Improve token handling logic (Version 2) ✅
• API Product
  • Create product schema ✅
  • Create new product using Factory Pattern ✅
  • Optimize product service for junior and senior levels ✅
  • Add features: isDraft, isPublish, and unPublish ✅
  • Add functionalities: findAll, findOne, selectData, unSelectData ✅
  • Update product via POST, PUT, PATCH ✅
• API Inventory
  • Add stock to inventory ✅
• Write API discount
  • Create inventory, discount model ✅
  • Get discount amount ✅
  • Get all discounts with product ✅
  • Create discount ✅
  • Get all discounts ✅
• Write API cart
  • Add to cart ✅
  • Delete user item cart ✅
  • Get list of user cart ✅
  • Update quantity of item in cart ✅
• Write API order
  • Using optimistic concurrency with Redis ✅
  • Checkout review ✅
• Redis Integration
  • Manage Redis data structures (String, Hash, List, Set, ZSet) ✅
  • Implement transactions ✅
  • Configure Pub/Sub ✅
  • Handle TTL and server failure scenarios ✅
• Logging API using Discord ✅
  • Push logs to Discord ✅
  • Test integration with Postman ✅
• Nested Comments System ✅
• Notification System
  • Send and verify notifications ✅
  • Analyze PUSH/PULL behavior ✅
  • Integrate with message queues ✅
• Message Queue
  • Kafka and RabbitMQ integration ✅
  • Handle message errors and TTL ✅
  • Ensure message ordering in Pub/Sub and queues ✅
• MySQL Optimization
  • Master-slave replication ✅
  • Generate 10 million test records ✅
  • Partition database for scalability ✅
  • Avoid common indexing mistakes ✅
• File Upload
  • Configure Multer and Cloudinary ✅
• AWS Deployment
  • S3 Bucket with security and performance optimization ✅
  • Use CloudFront for file protection ✅
  • Deploy and manage EC2 with MySQL and Linux ✅
  • CI/CD integration with GitHub and EC2 ✅
  • Configure Nginx with SSL and domain ✅
• Roles and Permissions
  • Design system architecture ✅
  • Complete real-world implementation ✅
• OTP Email Verification
  • Send OTP ✅
  • Verify OTP ✅
• SKU and SPU System
  • Design and explain schema ✅
  • Implement controllers and services ✅
• ElasticSearch Integration
  • Basic architecture ✅
  • Advanced search features ✅

Setup package project

- @golevelup/nestjs-rabbitmq: "^5.5.0"
- @nestjs-modules/mailer: "^2.0.2"
- @nestjs/common: "^10.0.0"
- @nestjs/config: "^3.2.3"
- @nestjs/core: "^10.0.0"
- @nestjs/microservices: "^9.4.3"
- @nestjs/mongoose: "^10.0.10"
- @nestjs/platform-express: "^10.0.0"
- @nestjs/swagger: "^7.4.0"
- accesscontrol: "^2.2.1"
- amqp-connection-manager: "^4.1.14"
- amqplib: "^0.10.4"
- bcrypt: "^5.1.1"
- class-transformer: "^0.5.1"
- class-validator: "^0.14.1"
- cloudinary: "^2.5.1"
- compression: "^1.7.4"
- crypto: "^1.0.1"
- discord.js: "^14.16.3"
- dotenv: "^16.4.6"
- helmet: "^7.1.0"
- ioredis: "^5.4.1"
- jsonwebtoken: "^9.0.2"
- kafkajs: "^2.2.4"
- lodash: "^4.17.21"
- mongoose: "^8.5.0"
- morgan: "^1.10.0"
- multer: "^1.4.5-lts.1"
- reflect-metadata: "^0.2.0"
- rxjs: "^7.8.1"
- slugify: "^1.6.6"
- uuid: "^11.0.3"
- winston: "^3.17.0"
- winston-daily-rotate-file: "^5.0.0"