A query language for your API
History
- Created in 2012 by Facebook
- Released to the public in 2015
- In 2018 the GraphQL project was moved from Facebook to the newly-established GraphQL foundation, hosted by the non-profit Linux Foundation
REST API
GraphQL
Schema & Type System
- Strong type system
- Schema defined using GraphQL Schema Definition Language (SDL)
type Post {
title: String!
author: Person!
}
type Person {
name: String!
nickName: String
age: Int!
posts: [Post!]!
}
type Query {
allPersons(last: Int): [Person!]!
}
type Mutation {
createPerson(name: String!, age: Int!): Person!
}
type Subscription {
newPerson: Person!
}