PostgREST - RESTful API from any existing PostgreSQL database

PostgREST serves a fully RESTful API from any existing PostgreSQL database. The structural constraints and permissions in the database determine the API endpoints and operations. It is an alternative to manual CRUD programming. Custom API servers suffer problems. Writing business logic often duplicates, ignores or hobbles database structure. Object-relational mapping is a leaky abstraction leading to slow imperative code. The PostgREST philosophy establishes a single declarative source of truth: the data itself.