Contract-First API Design

About

This skill empowers developers to adopt a contract-first methodology for API development by prioritizing design over implementation. It provides comprehensive guidance on creating OpenAPI and AsyncAPI specifications, managing versioning, and detecting breaking changes before they reach production. By integrating tools for linting, mock server generation, and contract testing, this skill helps ensure that code conforms to established standards, facilitates parallel development between teams, and maintains high-quality API documentation from day one.

Key Features

• CI/CD integration for spec compliance
• OpenAPI and AsyncAPI specification design
• Modular specification organization patterns
• Automated breaking change detection and versioning
• Contract-to-code generation and validation
• 12 GitHub stars

Use Cases

• Managing breaking changes in high-traffic production APIs
• Designing a new microservice API before writing any backend code
• Validating existing implementations against a shared OpenAPI specification