HexSlice Architecture

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This repository describes and documents the HexSlice Architecture as an architectural concept, independent of any programming language or framework. The concept itself is language-agnostic; runnable, language-specific example projects live under lab/.

Architecture

HexSlice Architecture combines two architectural ideas:

• Hexagonal Architecture defines the system boundaries, ports, adapters, and dependency direction.
• Vertical Slice Architecture organizes the application core by use cases.

In short:

HexSlice Architecture means vertical use-case slices inside a hexagonal application core, with adapters outside and ports owned by the application.

Core Principles

• The domain contains business rules and remains technology-independent.
• The application layer contains use cases.
• Use cases are organized as vertical slices.
• Ports are defined by the application core.
• Ports live as locally as possible and as shared as necessary.
• Inbound adapters call use cases.
• Outbound adapters implement ports.
• The core does not depend on technical infrastructure.

Documentation

The architecture is documented here:

HexSlice Architecture

Examples

Runnable, language-specific examples live under lab/:

• Go — order business area with create order and cancel order slices, a CLI inbound adapter, and make + Docker tooling.