Microservices

Purpose

Decide where service boundaries belong — and whether you need them at all. Splitting a system converts function calls into network calls, and every network call is a new failure mode you must design for.

When to Use

• Considering extracting a service from a monolith.
• Defining boundaries for a system that will be built as services.
• Diagnosing a distributed system that has become a "distributed monolith".
• Designing a transaction that spans services.

Capabilities