server.js

const {
  ApolloServer,
  ForbiddenError,
  AuthenticationError,
  UserInputError
} = require("apollo-server-express");
const requireDirectory = require("require-directory");
const { readFileSync } = require("fs");
const db = require("../db");
const resolvers = requireDirectory(module, "./resolvers");
const typeDefs = readFileSync(__dirname + "/schema.graphql", "utf8");

const errors = {
  ForbiddenError,
  AuthenticationError,
  UserInputError
};

const server = new ApolloServer({
  typeDefs,
  resolvers,
  context: async ({ req }) => ({
    viewer: await db.User.findByToken(req.headers.authorization),
    db,
    errors
  })
});

module.exports = server;