State of GraphQL in 2018

by Gerard Sans |  @gerardsans

by Gerard Sans |  @gerardsans

Google Developer Expert

Google Developer Expert

International Speaker

Spoken at 77 events in 24 countries

Blogger

Blogger

Community Leader

900

1.4K

Trainer

Master of Ceremonies

Master of Ceremonies

React In Flip Flops

Timeline

2012

GraphQL created at Facebook

2013

React is released

2014

React Native is released

2015

GraphQL is open sourced

Relay Classic is open sourced

2016

New GraphQL website graphql.org

First GraphQL Summit

GitHub announces GraphQL API

2017

Relay Modern 1.0

Apollo Client 2.0

2018

Prisma 1.0

Apollo Engine

Apollo Client 2.1

GraphQL

Query Language


// GET '/graphql'
{
  allTodoes(first: 1) {
    text
    complete
  }
}

// result
{
 "allTodoes": [{
   "text": "Learn GraphQL",
   "complete": true
 }]
}
schema {
  query: Query
  mutation: Mutation
  subscription: Subscription
}

type Query {
  allTodoes(first: Int): [Todo]
}

type Todo {  
  id: ID!
  text: String!
  complete: Boolean!
}

GraphQL Schema

GraphQL Server

source: blog

GraphQL  Clients

Relay Modern

Apollo Client

urql

Tools

APIs-guru/graphql-voyager

graphcool/graphql-playground

GraphQL Playground

  • All GraphiQL features
  • Multi-server (endpoint per tab)
  • Prettify, History, HTTP Headers
  • Supports realtime subscriptions and tracing (Apollo)
  • Standalone App

New Apollo Developer Tools

New stuff

  • New Architecture
    • ​Stability and performance
  • Apollo Client 2.x
    • Apollo Link
    • Apollo Link State

Subscriptions Support

Dracula Theme

🦇

🦇

🦇

New in Apollo

Apollo Boost

import ApolloClient from 'apollo-boost'
import { ApolloProvider } from 'react-apollo'

const client = new ApolloClient({
  uri: "https://your-ad-here/graphql"
})

const ApolloWrapper = () => (
  <ApolloProvider client={client}>
    <App/>
  </ApolloProvider>
)
index.js

Easier setup

import { ApolloClient } from 'apollo-client';
import { HttpLink } from 'apollo-link-http';
import { InMemoryCache } from 'apollo-cache-inmemory';

export const client = new ApolloClient({
  link: new HttpLink({ 
    uri: "https://time-travel-today/graphql" 
  }),
  cache: new InMemoryCache()
});
client.js

Before

 Apollo Client  v2.1

Overview

  • Moving from HOC to Render props
  • New Components
    • Query
    • Mutation
    • Subscription
    • ApolloConsumer
const TODOS = gql`query todos {
  allTodoes { id text complete }
}`

const withTodos = graphql(TODOS, {
  props: ({ data }) => {
    if (data.loading) return { loading: true }
    if (data.error) return { hasErrors: true }
    return {
      todos: data.allTodoes || [],
    }
  },
});

export default withTodos(App)
src/App.js

Query using HOC 1

class App extends Component {
  render() {
    return (
      { this.props.loading && <CircularProgress /> }
      { this.props.hasErrors && <div>Woot can't load todos!😱<div/> }
      { this.props.todos && this.props.todos.map(todo => (
        <Todo key={todo.id} todo={todo}/>
      )) }
    );
  }
}
src/App.js

Query using HOC 2

const TODOS = gql`query todos {
  allTodoes { id text complete }
}`;

const Todos = () => (
  <Query query={TODOS}>
    {({ loading, error, data }) => {
      if (loading) return <CircularProgress/>;
      if (error) return <div>Woot can't load todos!😱<div/>;

      return data.allTodoes.map(todo => (
        <Todo key={todo.id} todo={todo}/>
      ));
    }}
  </Query>
);
src/App.js

Query using Render props

const ApolloCache = () => (
  <ApolloConsumer>
    {(client) => (
      <pre>{client.extract()}</pre>
    )}
  </ApolloConsumer>
)
src/App.js

ApolloConsumer

GraphQL Servers

GrAMPS

GraphQL Servers

Apollo Server

Prisma

Tools

apollographql/graphql-tools

graphql-tools

  • Runtime Schema: resolvers, interfaces, unions and custom scalars
  • Allows mocking types

launchpad.graphql.com

graphcool/graphql-yoga

graphql-yoga

  • Seed project to create GraphQL Servers
  • Uses common building blocks
  • Minimal setup & best practices

Dependencies

  • apollo-server
  • graphql-subscriptions
  • graphql-tools
  • graphql-playground

Features

  • File Upload, Subscriptions
  • Types (TypeScript), Playground
  • Apollo tracing
  • Extensible via Express Middlewares
  • Accepts application/json/graphql

Community

GraphQL Community

Conferences

More

Johannes Schickling

Peggy Rayzis

Sashko Stubailo

Nikolas Burk

State of GraphQL in 2018 - Prague

By Gerard Sans

State of GraphQL in 2018 - Prague

In this talk we are going to put GraphQL under the microscope. Looking at its past, present and future. After this session you should be able to mention its strengths and weaknesses and where is heading.

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