Summarized: Microservices Vs Monolithic Architecture

Lets us understand each architecture individually.

1. Microservices Architecture:

Microservice architecture is an approach to software development for the large application which is then segregated in modular services. These services are small, scalable, independent. Services communicate with each other using standard protocols

Microservices architecture is the structure of an application as a collection of services. The services in this architecture are Highly maintainable, testable, Loosely coupled, Independently deployable, Organized around business capabilities, and owned by small teams. This architecture is fast and reliable for the delivery of large and complex applications and also helps the
organization to evolve the technology stack

More than structure or code Microservice is the way a developer works and plays an important role in terms of ownership. As every developer or the team owns some part of the architecture (Application). Microservices play major roles in large enterprise applications.

The main agenda behind Microservice architecture is to make some types of applications easier to build and maintain and then they are segregated into smaller pieces. In a microservices architecture, each service has a unique process and also manages its own databases. Service can run within the same process but they should be deployable independently.

Some of the top companies that switched from Monolithic Architecture to Microservices Architecture:

1. Walmart
2. Spotify
3. Amazon
4. Netflix
5. Google

Benefits of Microservices Architecture:

• Microservices provide CI/CD.
• Simple and faster service testing
• Independent deployment of services
• Helps developer to more production due to the faster IDE
• Improved fault isolation.

Drawbacks of Microservices Architecture:

• Testing is more difficult as compared
• Deployment complexity.
• Increased memory consumption.
• A complex system of multiple modules and databases so all the connections need to be handled carefully.
• Cross-cutting concerns.

2. Monolithic Architecture:

Monolithic Architecture is a traditional way to build applications. Monolithic Architecture is one complete and individual unit. The application in this kind of Architecture consists of the client-side user interface, server-side applications, and a database. These applications have one large codebase. If the developers want to make some changes the access of the full code base is required by the developers.

Monolithic applications have one large codebase with multiple modules and a lack of modularity. If developers want to update or change something, they access the same code base. So, they make changes in the whole stack at once. The monolithic application has a single build system and a single deployable binary.

Monolithic architecture is also called as multi-tier architecture as the applications are segregated in three or more layers. The layers like presentation layer, business layer, database layer, application layer, etc.

Benefits of Monolithic Architecture:

• Simple to develop
• Simple to test.
• Simple to deploy.
• Simple to scale horizontally

Drawbacks of Monolithic Architecture:

• The monolithic application becomes complicated to understand while it scales up.
• It is harder to implement changes in application with highly tight coupling.
• Scalability Issues.
• Technology barriers.

Microservices Architecture is beneficial and preferable for complex application. Monolith has its strong durable advantages for use cases like if you have idea for business and you want to test and validate it