Show HN: FastBack end – schema-first back end runtime with OpenAPI output
FastBackend is a tool designed to automate backend development by generating a framework-agnostic intermediate representation (IR) from a database schema. It allows developers to focus on custom business logic while handling the repetitive tasks of CRUD operations and API generation. The system supports multiple runtime adapters, enabling integration with various frontend frameworks through OpenAPI specifications.
- ▪FastBackend automates approximately 90% of backend work, including CRUD operations and OpenAPI generation from database schemas.
- ▪The tool provides a schema-first pipeline where the database schema serves as the source of truth for generating the intermediate representation and REST API.
- ▪FastBackend currently offers runtime adapters for FastAPI and Express, allowing developers to write custom code only for specific business logic.
Opening excerpt (first ~120 words) tap to expand
FastBackend FastBackend automates the repetitive ~90% of backend work: CRUD, relationships, validation, filtering, and OpenAPI from your database schema. You write custom code only for business logic — overrides and custom routes for the 10% that matters. Schema → framework-agnostic IR → runtime adapter (FastAPI or Express) → REST + OpenAPI. The IR is not tied to a backend framework. The OpenAPI output is not tied to a frontend framework. Vision Most backend work is predictable once you have a schema. The other part — custom business logic, integrations, auth flows, microservices, and one-off endpoints — is what makes your product unique.
…
Excerpt limited to ~120 words for fair-use compliance. The full article is at GitHub.