Functional Backend Patterns
Implements type-safe, functional programming patterns for Node.js and Deno backends using fp-ts and ReaderTaskEither.
This skill provides Claude with advanced architectural patterns for building robust backend services using functional programming principles. It focuses on leveraging the fp-ts library to manage side effects, handle errors via typed Eithers, and implement clean dependency injection through the ReaderTaskEither pattern. It is an essential resource for developers looking to move beyond standard imperative Node.js code toward a more testable, predictable, and maintainable codebase using domain-driven design and functional service composition.
Características Principales
01Structured domain error modeling using TypeScript discriminated unions
02Modular service layer composition for scalable and decoupled backend architecture
03Automated infrastructure and service dependency container building
04Functional database operation wrappers for type-safe Prisma and database interactions
0531,722 GitHub stars
06Standardized ReaderTaskEither (RTE) patterns for dependency injection and error handling
Casos de Uso
01Refactoring imperative Express or Fastify controllers into pure functional services
02Setting up a decoupled dependency injection layer for better unit testing and environment management
03Implementing type-safe error handling across complex asynchronous backend workflows