Trillo.io's answer
Trillo Workbench is an enterprise application development and runtime platform designed to streamline the building of cloud applications. It functions seamlessly within your cloud environment, dramatically reducing the need for backend coding and infrastructure management.
Hasura - Hasura is an open platform to build scalable app backends, offering a built-in database, search, user-management and more.
How to GraphQL - Open-source tutorial website to learn GraphQL development
GraphQL Playground - GraphQL IDE for better development workflows