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May 31, 2024

Exploring Microservices Architecture with individual databases

- Each microservice embodies a specific business capability or functionality, ensuring a focused approach.

- Microservices operate independently, allowing for flexible and autonomous deployment.

- Examples of microservices include User Service, Order Service, and Inventory Service, among others.

Database Per Microservice:

- Each microservice is paired with its own dedicated database to promote data isolation, scalability, and autonomy.

- For instance, the User Service interacts with its User Database, while the Order Service manages its Order Database.

Interactions Between Microservices and Databases:

Read Operations:

- Microservices access data from their designated databases to perform operations effectively.

- When requiring user information, the User Service directly queries its User Database.

Write Operations:

- Microservices update data within their respective databases seamlessly.

- For instance, when a new user registers, the User Service efficiently inserts the user details into its User Database.

Database Connection Pooling:

- Maintaining connection pools ensures efficient management of database connections.

- Each microservice maintains a connection pool to minimize connection overhead and enhance performance.

Service-to-Service Communication:

- Microservices communicate using protocols such as HTTP/HTTPS for RESTful APIs and Message Queues for publish-subscribe.

- For example, the Order Service requests user information from the User Service API via an HTTP request, facilitating seamless data exchange.

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