Tell about microservices — have you implemented them from scratch, explored their architecture?

Microservices are an architectural style where an application is broken down into many small, independent services, each responsible for its own business function. I have implemented a microservice architecture from scratch, starting with designing service boundaries and ending with configuring communication between them.

Important points I encountered:

• Defining clear APIs and contracts between services (usually REST or gRPC).
• Organizing asynchronous interactions through message queues (Kafka, RabbitMQ).
• Managing configuration and service discovery (Consul, Eureka).
• Ensuring fault tolerance and scalability.
• Monitoring and logging of the distributed system.

Example: in one of my projects, I designed an order system where separate microservices were responsible for the product catalog, order processing, payment, and notifications. Each service had its own database, which allowed them to be independent and scale separately.