giovannibenussi

const EXCHANGE_RATES = gql`
  {
    rates(currency: "USD") {
      currency
      rate
      name @client
    }
  }
`

giovannibenussi

// imports...
import Rates from './Rates'

// client = ...

function App() {
  return (
    <ApolloProvider client={client}>
      ...
        <Rates />

giovannibenussi

import React from 'react'
import { useQuery } from '@apollo/react-hooks'
import { gql } from 'apollo-boost'

const EXCHANGE_RATES = gql`
  {
    rates(currency: "USD") {
      currency
      rate
    }

giovannibenussi

import React from 'react'
import ApolloClient from 'apollo-boost'
import { ApolloProvider } from '@apollo/react-hooks'

const client = new ApolloClient({
  uri: 'https://48p1r2roz4.sse.codesandbox.io'
})

function App() {
  return (

giovannibenussi

import React from 'react'
function App() {
  return (
    <div>
      <h1>Apollo Mocks Demo 🚀</h1>
    </div>
  )
}
export default App

giovannibenussi

yarn add apollo-boost @apollo/react-hooks graphql

giovannibenussi

import React, { Component } from 'react';
import logo from './logo.svg';
import './App.css';

import { ApolloLink } from 'apollo-link';
import { ApolloClient } from 'apollo-client';
import { ApolloProvider } from 'react-apollo'
import { HttpLink } from 'apollo-link-http';
import { InMemoryCache } from 'apollo-cache-inmemory';
import ActionCable from 'actioncable';

giovannibenussi

it "can't be saved without an user" do
  post = Post.new
  post.user = nil
  expect { post.save!(validate: false) }.to raise_error ActiveRecord::NotNullViolation
end

giovannibenussi

post = Post.new
post.user = nil
post.save!(validate: false)

giovannibenussi

class AddUserReferenceToPosts < ActiveRecord::Migration[5.1]
  def change
    add_reference :posts, :user, foreign_key: true
  end
end