Base
Building Microservices
A classic introduction to microservices and system boundaries.
Integration is what makes a distributed system a system. The more services there are, the more important proper contracts, domain separation and stable communication channels are. This section teaches you how to design interactions so that the system remains understandable, reliable, and develops without chaos.
Why know integration, microservices and DDD
Complexity of connections
The more services there are, the higher the cost of errors in contract and communication.
Team independence
Microservices only work if domain boundaries are defined correctly.
API evolution
Without a well-thought-out version and contracts, the API breaks with every change.
Reliability
Integration errors lead to cascading failures, so resilience patterns are needed.
Section map: key directions
Microservices and decomposition
Boundaries, contracts and independent scaling of teams.
Service integration
Synchronous calls, asynchronous events, and persistent channels.
Domain Driven Design
Aligning the data model and command language with the domain.
API Design and Contracts
REST, GraphQL, BFF and API evolution without pain.
What will this section give in practice?
- Ability to choose between sync and async integration.
- Understanding how to design APIs that evolve without pain.
- Skill in decomposing a monolith and determining domain boundaries.
- More structured answers to system design interviews.
Suitable for starting Building Microservices And Enterprise Integration Patterns.