Monolithic and Microservices

 Monolithic and Microservices 👽

Hello guys, in this blog I hope to provide you with knowledge about monolithic and microservices.
Have you heard of these words before?  Ok, Let's talk. 

    Monolithic and microservices architectures represent two fundamentally different approaches to software design. Monolithic architectures combine all application functionality into a single, tightly coupled codebase, while microservices break the application into smaller, independently deployable services that communicate via well-defined interfaces

Monolithic Architecture

A monolithic architecture is a single unified unit where all components of an application like UI, business logic, database access, etc. are combined into a single codebase and deployed together.
It is like a big single and tightly connected building, where everything is housed under one roof. Think of Kandy City Center, it has a lot of different outlets. It is structured like a monolithic architecture.

There are some features in monolithic architecture.
  • Single deployable unit
  • Tight coupling between components
  • Easier to develop at the beginning
  • Have shared memory and resources

Here are some advantages of monolithic architecture.
  • Simpler Development and Deployment
    • Monolithic applications are generally easier to develop and deploy due to their simplicity. 
  • Easier Testing
    •  Testing a monolithic application is simpler as it is a self-contained unit. 
  • Cost-Effective for Small Teams
    • Monolithic architectures are well-suited for smaller teams or organizations with centralized decision-making. 
Disadvantages of monolithic architecture.: 
  • Limited Scalability
    • Scaling a monolithic application often involves scaling the entire application, even if only specific components need to be updated. 
  • Large Codebase
    • Monolithic applications can become large and complex over time, making them difficult to maintain. 
  • Technology Constraints
    • Incorporating new technology may require rebuilding the entire application, which can be costly and time-consuming. 
  • Single Point of Failure
    • A minor error in the code base can cause the entire application to fail. 


Microservices Architecture

A microservices architecture breaks down an application into small, independent services that communicate via APIs, usually HTTP/REST or messaging. It's look like a bunch of smaller, independent buildings that work together but are not physically connected.

Some features in microservices architecture.
  • Each service handles a specific business function.
  • Independently deployable and scalable.
  • Usually managed by different teams.
Some advantages of microservices architecture.
  • Powered Scaling
    • Individual microservices can be scaled independently based on their specific resource demands. 
  • Enhanced Maintainability
    • Smaller, focused services are easier to understand, leading to faster development, testing, and deployment cycles. 
  • Independent Deployment
    • Microservices can be deployed and updated independently of each other. 
  • Flexibility
    • Individual service failures do not necessarily affect the entire application, improving flexibility. 
  • Technology Diversity
    • Different microservices can be built using different technologies, allowing for greater flexibility. 
Disadvantages of microservices architecture.
  • Increased Complexity
    • Microservices architectures are more complex to design and manage due to their distributed nature. 
  • Inter-Service Communication Overhead
    • Communication between microservices can add overhead, potentially increasing latency. 
  • Testing Complexity
    • Testing interactions between multiple services can be more complex than testing a monolithic application. 



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