Microservices

What are Microservices?

Microservices are an architectural approach where an application is built as a collection of small, independent services. Each service focuses on a specific business function, runs in its own process, and communicates with other services through well-defined APIs. Teams can develop, deploy, and scale each service independently.

What problem do they solve?

Monolithic applications bundle all functionality into a single codebase and deployment unit. As a monolith grows, it becomes harder to understand, test, and maintain. Deploying a small change requires redeploying the entire application, and scaling means duplicating everything even if only one part is under heavy load.

How do they help?

Microservices allow teams to scale individual components based on actual demand rather than scaling the entire application. Each service can be deployed independently, so a change to one service does not require redeploying the others. Teams can choose the best technology for each service and work autonomously without coordinating every release. This flexibility makes it easier to evolve and maintain complex applications over time.