Monolithic Architecture

• Monolithic architecture represents a traditional approach to software design where an entire application is treated as a single, tightly-integrated unit.
• All components and modules are interconnected and interdependent within a single codebase.
• The entire application is typically deployed as a single unit.

Monolithic Architecture

Challenges of Monolithic Architecture

• Limited Scalability
• Technology Stack Limitations
• Deployment Bottlenecks
• Limited Fault Isolation

Software Modularization

Software Modularization

• Modularization is the process of breaking down the overall functionality of software into smaller, autonomous, and reusable parts called modules.
• The goal is to achieve better organization, maintainability, and code clarity.
• The modules are then combined to form a complete application.

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Modularization Advantages

• Enhances code clarity and readability.
• Facilitates code reuse and reduces duplication.
• Eases software management and maintenance.

Modularization Disadvantages

• Increased Complexity in Inter-module Communication
• Potential for Overhead in Module Management
• Dependency Management
• Initial Overhead in Design

Microservices Architecture

• Service Independence
• Decentralized Data Management
• Scalability
• Decentralized Communication

Microservices Architecture

Advantages of Microservices Architecture

• Scalability
• Flexibility and Technology Diversity
• Rapid Development and Deployment
• Fault Isolation
• Improved Team Autonomy

Disadvantages of Microservices Architecture

• Increased Operational Complexity
• Distributed System Challenges
  • Data Consistency
  • Inter-Service Communication
• Testing and Debugging
  • Testing Across Services
  • Debugging Across Services

Communication in Microservices

• Challenges
  • Complex Communication Patterns
  • Latency Management
• Strategies
  • API Gateway
  • Event-Driven Architecture
• Tools
  • Message Brokers

Transaction Management

• Challenges
  • Distributed Transactions
  • Data Consistency
• Strategies
  • Saga Pattern
  • Event Sourcing
• Tools
  • Distributed Database
  • Transaction Monitoring Tools

Testing in Microservices

• Challenges
  • Integration Testing Complexity
  • Data Consistency Testing
• Strategies
  • Contract Testing
  • Chaos Engineering
• Tools
  • Testing Frameworks
  • Containerized Testing

Security in Microservices

• Challenges
  • Identity and Access Management
  • Secure Communication
• Strategies
  • OAuth 2.0
  • JWT (JSON Web Tokens)
• Tools
  • API Security Tools
  • Security Auditing

State Management in Microservices

• Challenges
  • Consistency Across Services
  • Stateful Service Challenge
• Strategies
  • Event Sourcing
  • CQRS (Command Query Responsibility Segregation)
• Tools
  • Stateful Service Frameworks
  • Distributed Cache

Logging in Microservices Architecture

• Challenges
  • Distributed Nature
  • Data Volume
• Strategies
  • Centralized Logging
  • Structured Logging
• Tools
  • Prometheus and Grafana
  • Application Performance Monitoring (APM)