A gist describing different tools in the GraphQL ecosystem: graphql-tools

combine.md

makeExecutableSchema

import { makeExecutableSchema } from 'graphql-tools';

const executableSchema = makeExecutableSchema({
  typeDefs,
  resolvers,
});

resolver.md

Root Resolver

let resolvers = {
  Query: {
    getBooks: () => { /* logic to return books */ }
  },
  Mutation: {
    createBook(parent, args, context, info) {
      /* Logic to create a book */
    }
  }
}

schema.md

Schema

let typeDefs = `
type Book {
  id: ID!
  name: String!,
  author: String!,
  pages: Int!
}

type Query {
  getBooks: [Book!]!
}

type Mutation: {
  createBook(name: String!, author: String!, pages: Int!): Book!
}
`