Backend Development

☰ 1 Introduction to Backend Development

☰ 1.1 What Is Backend Development?
☰ 1.2 Frontend vs Backend
☰ 1.3 How Web Applications Work
☰ 1.4 Client-Server Architecture
☰ 1.5 Request-Response Cycle
☰ 1.6 Static vs Dynamic Websites
☰ 1.7 Backend Developer Responsibilities
☰ 1.8 Backend Development Roadmap

☰ 2 How the Web Works

☰ 2.1 The Internet and the Web
☰ 2.2 IP Addresses
☰ 2.3 Domain Names
☰ 2.4 DNS
☰ 2.5 Ports
☰ 2.6 TCP/IP Basics
☰ 2.7 HTTP and HTTPS
☰ 2.8 HTTP Requests
☰ 2.9 HTTP Responses
☰ 2.10 HTTP Methods
☰ 2.11 HTTP Status Codes
☰ 2.12 HTTP Headers
☰ 2.13 Cookies
☰ 2.14 Sessions
☰ 2.15 What Happens When You Enter a URL?

☰ 3 Development Environment

☰ 3.1 Choosing an Operating System
☰ 3.2 Linux Basics for Backend Developers
☰ 3.3 Command Line Basics
☰ 3.4 Environment Variables
☰ 3.5 Installing Development Tools
☰ 3.6 Code Editors and IDEs
☰ 3.7 Git
☰ 3.8 GitHub and GitLab
☰ 3.9 Creating Your First Repository
☰ 3.10 Branches and Commits
☰ 3.11 Basic Git Workflow

☰ 4 Programming Fundamentals

☰ 4.1 Variables and Data Types
☰ 4.2 Operators
☰ 4.3 Conditions
☰ 4.4 Loops
☰ 4.5 Functions
☰ 4.6 Data Structures
☰ 4.7 Error Handling
☰ 4.8 Modules and Packages
☰ 4.9 File Handling
☰ 4.10 Object-Oriented Programming
☰ 4.11 Classes and Objects
☰ 4.12 Inheritance and Composition
☰ 4.13 Clean Code Principles

☰ 5 Python for Backend Development

☰ 5.1 Introduction to Python
☰ 5.2 Installing Python
☰ 5.3 Virtual Environments
☰ 5.4 pip and Package Management
☰ 5.5 Python Project Structure
☰ 5.6 Functions and Type Hints
☰ 5.7 Classes and Dataclasses
☰ 5.8 Exceptions
☰ 5.9 Working with Files
- ☰ 5.9.1 File Downloads
- ☰ 5.9.2 File Validation
- ☰ 5.9.3 Image Uploads
- ☰ 5.9.4 Local File Storage
- ☰ 5.9.5 Object Storage
- ☰ 5.9.6 S3-Compatible Storage
- ☰ 5.9.7 Presigned URLs
- ☰ 5.9.8 Secure File Handling
☰ 5.10 JSON
☰ 5.11 Date and Time
☰ 5.12 Logging
☰ 5.13 Configuration
☰ 5.14 Environment Variables
☰ 5.15 Async Programming
☰ 5.16 Python Backend Best Practices

☰ 6 Introduction to Web Backends

☰ 6.1 Building a Simple Web Server
☰ 6.2 Routing
☰ 6.3 URL Parameters
☰ 6.4 Query Parameters
☰ 6.5 Request Bodies
☰ 6.6 Form Data
☰ 6.7 JSON Requests
☰ 6.8 Returning Responses
☰ 6.9 Templates
☰ 6.10 Static Files
☰ 6.11 Middleware
☰ 6.12 Application Configuration

☰ 7 REST APIs

☰ 7.1 What Is an API?
☰ 7.2 What Is REST?
☰ 7.3 Resources and Endpoints
☰ 7.4 RESTful URL Design
☰ 7.5 HTTP Methods in REST
☰ 7.6 GET Requests
☰ 7.7 POST Requests
☰ 7.8 PUT Requests
☰ 7.9 PATCH Requests
☰ 7.10 DELETE Requests
☰ 7.11 Request Validation
☰ 7.12 Response Models
☰ 7.13 HTTP Status Codes
☰ 7.14 Error Responses
☰ 7.15 Pagination
☰ 7.16 Filtering
☰ 7.17 Sorting
☰ 7.18 Searching
☰ 7.19 API Versioning
☰ 7.20 API Documentation
☰ 7.21 OpenAPI and Swagger

☰ 8 FastAPI

☰ 8.1 Introduction to FastAPI
☰ 8.2 Routes and Path Operations
☰ 8.3 Path Parameters
☰ 8.4 Pydantic Models
☰ 8.5 Data Validation
☰ 8.6 Dependency Injection
☰ 8.7 Exception Handling
☰ 8.8 Background Tasks
☰ 8.9 File Uploads
☰ 8.10 Async Endpoints
☰ 8.11 FastAPI Project Structure
☰ 8.12 Building a Complete REST API

☰ 9 Databases

☰ 9.1 Introduction to Databases
☰ 9.2 Relational vs NoSQL Databases
☰ 9.3 Tables, Rows, and Columns
☰ 9.4 Primary Keys
☰ 9.5 Foreign Keys
☰ 9.6 Relationships
☰ 9.7 One-to-One Relationships
☰ 9.8 One-to-Many Relationships
☰ 9.9 Many-to-Many Relationships
☰ 9.10 Database Schema Design
☰ 9.11 Normalization
☰ 9.12 Indexes
☰ 9.13 Transactions
☰ 9.14 ACID Properties

☰ 10 SQL

☰ 10.1 Introduction to SQL
☰ 10.2 CREATE
☰ 10.3 INSERT
☰ 10.4 SELECT
☰ 10.5 UPDATE
☰ 10.6 DELETE
☰ 10.7 WHERE
☰ 10.8 ORDER BY
☰ 10.9 GROUP BY
☰ 10.10 Aggregate Functions
☰ 10.11 JOINs
☰ 10.12 Subqueries
☰ 10.13 Constraints
☰ 10.14 Indexes
☰ 10.15 Transactions
☰ 10.16 Common Table Expressions
☰ 10.17 SQL Performance Basics

☰ 11 PostgreSQL

☰ 11.1 Introduction to PostgreSQL
☰ 11.2 Installing PostgreSQL
☰ 11.3 Creating Databases
☰ 11.4 Users and Roles
☰ 11.5 Permissions
☰ 11.6 PostgreSQL Data Types
☰ 11.7 Constraints
☰ 11.8 Indexes
☰ 11.9 Transactions
☰ 11.10 JSON Data
☰ 11.11 Backup and Restore
☰ 11.12 PostgreSQL Performance Basics

☰ 12 ORM and Database Integration

☰ 12.1 What Is an ORM?
☰ 12.2 SQLAlchemy
☰ 12.3 Models
☰ 12.4 Database Sessions
☰ 12.5 Creating Records
☰ 12.6 Reading Records
☰ 12.7 Updating Records
☰ 12.8 Deleting Records
☰ 12.9 Relationships
☰ 12.10 Queries
☰ 12.11 Transactions
☰ 12.12 Connection Pooling
☰ 12.13 Database Migrations
☰ 12.14 Alembic
☰ 12.15 Repository Pattern

☰ 13 Authentication

☰ 13.1 Authentication vs Authorization
☰ 13.2 Password Storage
☰ 13.3 Password Hashing
☰ 13.4 Registration
☰ 13.5 Login
☰ 13.6 Tokens
☰ 13.7 JSON Web Tokens
☰ 13.8 Access Tokens
☰ 13.9 Refresh Tokens
☰ 13.10 OAuth 2.0
☰ 13.11 OpenID Connect
☰ 13.12 Social Login
☰ 13.13 Logout
☰ 13.14 Password Reset
☰ 13.15 Email Verification
☰ 13.16 Multi-Factor Authentication

☰ 14 Authorization

☰ 14.1 Users and Permissions
☰ 14.2 Role-Based Access Control
☰ 14.3 Permission-Based Access Control
☰ 14.4 Protecting API Endpoints
☰ 14.5 Admin Permissions
☰ 14.6 Resource Ownership
☰ 14.7 Authorization Best Practices

☰ 15 Backend Security

☰ 15.1 Introduction to Web Security
☰ 15.2 HTTPS and TLS
☰ 15.3 SQL Injection
☰ 15.4 Cross-Site Scripting
☰ 15.5 Cross-Site Request Forgery
☰ 15.6 CORS
☰ 15.7 Authentication Attacks
☰ 15.8 Brute-Force Protection
☰ 15.9 Rate Limiting
☰ 15.10 Input Validation
☰ 15.11 Secure Password Storage
☰ 15.12 Secrets Management
☰ 15.13 Secure Cookies
☰ 15.14 Security Headers
☰ 15.15 File Upload Security
☰ 15.16 Dependency Vulnerabilities
☰ 15.17 OWASP Top 10

☰ 16 Caching

☰ 16.1 Why Caching Matters
☰ 16.2 Application Caching
☰ 16.3 Redis
- ☰ 16.3.1 Introduction to Redis
- ☰ 16.3.2 Installing Redis
- ☰ 16.3.3 Keys and Values
- ☰ 16.3.4 Expiration
- ☰ 16.3.5 Distributed Locks
☰ 16.4 Cache Keys
☰ 16.5 Cache Invalidation
☰ 16.6 Caching Database Queries
☰ 16.7 Distributed Caching

☰ 17 Background Processing

☰ 17.1 Synchronous vs Asynchronous Tasks
☰ 17.2 Background Jobs
☰ 17.3 Message Queues
☰ 17.4 Celery
☰ 17.5 Redis as a Message Broker
☰ 17.6 Scheduled Tasks
☰ 17.7 Retry Strategies
☰ 17.8 Handling Failed Jobs
☰ 17.9 Email Jobs
☰ 17.10 Long-Running Tasks

☰ 18 Email

☰ 18.1 How Email Works
☰ 18.2 SMTP
☰ 18.3 Sending Emails
☰ 18.4 HTML Emails
☰ 18.5 Transactional Emails
☰ 18.6 Password Reset Emails
☰ 18.7 Background Email Delivery
☰ 18.8 Email Delivery Best Practices

☰ 19 Testing

☰ 19.1 Why Backend Testing Matters
☰ 19.2 Unit Testing
☰ 19.3 Integration Testing
☰ 19.4 API Testing
☰ 19.5 pytest
☰ 19.6 Fixtures
☰ 19.7 Mocking
☰ 19.8 Testing Databases
☰ 19.9 Testing Authentication
☰ 19.10 Testing FastAPI
☰ 19.11 Test Coverage
☰ 19.12 Automated Testing

☰ 20 Logging and Monitoring

☰ 20.1 Application Logging
☰ 20.2 Log Levels
☰ 20.3 Structured Logging
☰ 20.4 Request Logging
☰ 20.5 Error Logging
☰ 20.6 Metrics
☰ 20.7 Health Checks
☰ 20.8 Monitoring
☰ 20.9 Prometheus
☰ 20.10 Grafana
☰ 20.11 Alerting
☰ 20.12 Error Tracking
☰ 20.13 Observability Basics

☰ 21 Docker

☰ 21.1 Introduction to Containers
☰ 21.2 Docker Architecture
☰ 21.3 Images
☰ 21.4 Containers
☰ 21.5 Dockerfiles
☰ 21.6 Building Images
☰ 21.7 Running Containers
☰ 21.8 Volumes
☰ 21.9 Networks
☰ 21.10 Docker Compose
☰ 21.11 FastAPI with Docker
☰ 21.12 PostgreSQL with Docker
☰ 21.13 Redis with Docker
☰ 21.14 Multi-Container Applications
☰ 21.15 Production Docker Best Practices

☰ 22 Web Servers and Reverse Proxies

☰ 22.1 Application Servers
☰ 22.2 Uvicorn
☰ 22.3 Gunicorn
☰ 22.4 Reverse Proxies
☰ 22.5 Nginx
☰ 22.6 Traefik
☰ 22.7 HTTPS
☰ 22.8 TLS Certificates
☰ 22.9 Let's Encrypt
☰ 22.10 Load Balancing

☰ 23 Deployment

☰ 23.1 Development vs Production
☰ 23.2 Preparing an Application for Production
☰ 23.3 Linux Server Setup
☰ 23.4 Deploying with Docker
☰ 23.5 Environment Configuration
☰ 23.6 Managing Secrets
☰ 23.7 HTTPS Configuration
☰ 23.8 Production Logging
☰ 23.9 Backups
☰ 23.10 Zero-Downtime Deployment
☰ 23.11 Rollbacks

☰ 24 CI/CD

☰ 24.1 Introduction to CI/CD
☰ 24.2 Continuous Integration
☰ 24.3 Continuous Delivery
☰ 24.4 Continuous Deployment
☰ 24.5 CI/CD Pipelines
☰ 24.6 GitHub Actions
☰ 24.7 GitLab CI/CD
☰ 24.8 Building Docker Images
☰ 24.9 Container Registries
☰ 24.10 Deployment Pipelines
☰ 24.11 Staging Environments
☰ 24.12 Production Environments
☰ 24.13 Rollback Strategies

☰ 25 Backend Architecture

☰ 25.1 Monolithic Architecture
☰ 25.2 Modular Monoliths
☰ 25.3 Microservices
☰ 25.4 Layered Architecture
☰ 25.5 Service Layer
☰ 25.6 Separation of Concerns
☰ 25.7 Domain-Driven Design Basics
☰ 25.8 Event-Driven Architecture
☰ 25.9 Choosing an Architecture

☰ 26 Performance and Scalability

☰ 26.1 Understanding Backend Performance
☰ 26.2 CPU-Bound vs I/O-Bound Work
☰ 26.3 Asynchronous Programming
☰ 26.4 Database Optimization
☰ 26.5 Query Optimization
☰ 26.6 Indexing
☰ 26.7 Load Balancing
☰ 26.8 Horizontal Scaling
☰ 26.9 Vertical Scaling
☰ 26.10 Stateless Applications
☰ 26.11 Performance Testing
☰ 26.12 Load Testing

☰ 27 Advanced API Development

☰ 27.1 WebSockets
☰ 27.2 Server-Sent Events
☰ 27.3 GraphQL
☰ 27.4 Webhooks
☰ 27.5 Idempotency
☰ 27.6 API Rate Limiting
☰ 27.7 API Keys
☰ 27.8 API Gateways
☰ 27.9 Distributed APIs
☰ 27.10 Real-Time Applications

☰ 28 Production Backend Engineering

☰ 28.1 Configuration Management
☰ 28.2 Database Backups
☰ 28.3 Disaster Recovery
☰ 28.4 Graceful Shutdown
☰ 28.5 Fault Tolerance
☰ 28.6 Circuit Breakers
☰ 28.7 High Availability
☰ 28.8 Monitoring Production Systems
☰ 28.9 Incident Response

☰ 29 Project 1: Task Management API

☰ 29.1 Project Requirements
☰ 29.2 Project Structure
☰ 29.3 Database Design
☰ 29.4 CRUD Operations
☰ 29.5 Validation

☰ 30 Project 2: Authentication System

☰ 30.1 User Registration
☰ 30.2 JWT Authentication
☰ 30.3 Role-Based Authorization
☰ 30.4 Security Testing

☰ 31 Project 3: E-Commerce Backend

☰ 31.1 Architecture
☰ 31.2 User Management
☰ 31.3 Product Management
☰ 31.4 Categories
☰ 31.5 Shopping Cart
☰ 31.6 Orders
☰ 31.7 Inventory
☰ 31.8 Payments
☰ 31.9 Admin API

☰ 32 Final Project: Production Backend

☰ 32.1 Planning the Application
☰ 32.2 Designing the Architecture
☰ 32.3 Designing the Database
☰ 32.4 Building the REST API
☰ 32.5 Authentication and Authorization
☰ 32.6 PostgreSQL Integration
☰ 32.7 Redis Integration
☰ 32.8 Background Workers
☰ 32.9 File Storage
☰ 32.10 Dockerizing the Application
☰ 32.11 CI/CD Pipeline
☰ 32.12 Production Deployment
☰ 32.13 HTTPS and Domain Setup
☰ 32.14 Performance Optimization
☰ 32.15 Security Review
☰ 32.16 Documentation

☰ 33 Backend Developer Roadmap

☰ 33.1 What You Should Know Now
☰ 33.2 Building a Portfolio
☰ 33.3 Creating Backend Projects
☰ 33.4 Contributing to Open Source
☰ 33.5 Preparing for Backend Interviews
☰ 33.6 Backend Interview Questions
☰ 33.7 Database Interview Questions
☰ 33.8 API Interview Questions
☰ 33.9 Linux and Docker Interview Questions
☰ 33.10 Where to Go Next

Backend Development

Where to Move