Execute one command (or mount one Node.js middleware) and get an instant high-performance GraphQL API for your PostgreSQL database! - graphile/postgraphile
GraphQL Start is a pragmatic guide that explains how to build a GraphQL API (server) from start to finish on top of Node.js stack using JavaScript and GraphQL.js library.
Leveraging GraphQL types to expose MongoDB capabilities in NodeJs with graphql-to-mongodb, the unobtrusive solution we came up with, and our rationales.