import { gql } from "apollo-boost";
// or you can use `import gql from 'graphql-tag';` instead

...

client
  .query({
    query: gql`
      {
        rates(currency: "USD") {
          currency
        }
      }
    `
  })
  .then(result => console.log(result));

import ApolloClient from "apollo-boost";

const client = new ApolloClient({
  uri: "https://w5xlvm3vzz.lp.gql.zone/graphql"
});

import { Accounts } from 'meteor/accounts-base'
import ApolloClient from 'apollo-boost'

const client = new ApolloClient({
  uri: '/graphql',
  request: operation =>
    operation.setContext(() => ({
      headers: {
        authorization: Accounts._storedLoginToken()
      }
    }))
})

import ApolloClient from 'apollo-boost'

const client = new ApolloClient({
  request: (operation) => {
    const token = localStorage.getItem('token')
    operation.setContext({
      headers: {
        authorization: token ? `Bearer ${token}` : ''
      }
    })
  }
})

const { ApolloServer, gql } = require('apollo-server');

// Hardcoded data store
const books = [
  {
    title: 'The Awakening',
    author: 'Kate Chopin',
  },
  {
    title: 'City of Glass',
    author: 'Paul Auster',
  },
];

// Schema definition
const typeDefs = gql`
  type Book {
    title: String
    author: String
  }

  type Query {
    books: [Book]
  }
`;

// Resolver map
const resolvers = {
  Query: {
    books() {
      return books;
    }
  },
};

// Pass schema definition and resolvers to the
// ApolloServer constructor
const server = new ApolloServer({ typeDefs, resolvers });

// Launch the server
server.listen().then(({ url }) => {
  console.log(`🚀  Server ready at ${url}`);
});