Slide 1

Slide 1 text

@glnnrys · glennreyes.com GraphQL for JS developers

Slide 2

Slide 2 text

@glnnrys · glennreyes.com > whoami

Slide 3

Slide 3 text

@glnnrys · glennreyes.com Glenn Reyes Independent Software Engineer

Slide 4

Slide 4 text

@glnnrys · glennreyes.com Goals for today

Slide 5

Slide 5 text

@glnnrys · glennreyes.com Learn

Slide 6

Slide 6 text

@glnnrys · glennreyes.com Fun

Slide 7

Slide 7 text

@glnnrys · glennreyes.com Success!!!

Slide 8

Slide 8 text

@glnnrys · glennreyes.com What is GraphQL?

Slide 9

Slide 9 text

@glnnrys · glennreyes.com Query Language for APIs

Slide 10

Slide 10 text

@glnnrys · glennreyes.com Ask for
 what you want And get
 predictable results

Slide 11

Slide 11 text

@glnnrys · glennreyes.com

Slide 12

Slide 12 text

@glnnrys · glennreyes.com www.graphql.org

Slide 13

Slide 13 text

@glnnrys · glennreyes.com Describe your data

Slide 14

Slide 14 text

Describe your data

Slide 15

Slide 15 text

No content

Slide 16

Slide 16 text

User

Slide 17

Slide 17 text

Tweet Tweet

Slide 18

Slide 18 text

User Tweet

Slide 19

Slide 19 text

Describe your data User Tweet

Slide 20

Slide 20 text

Describe your data User Tweet name email username bio age tweets message from

Slide 21

Slide 21 text

@glnnrys · glennreyes.com Describe your Schema in a Type System

Slide 22

Slide 22 text

@glnnrys · glennreyes.com type Tweet { id: ID! message: String! from: User } type User { name: String! email: String! bio: String age: Int tweets: [Tweet!]! username: String! }

Slide 23

Slide 23 text

@glnnrys · glennreyes.com type Query { getUser(email: String!): User! getTweets(username: String!): [Tweet!]! } type Mutation { createTweet: Tweet deleteTweet(id: ID!): Tweet updateTweet(id: ID!): Tweet }

Slide 24

Slide 24 text

@glnnrys · glennreyes.com # GET something type Query { getUser(email: String!): User! getTweets(username: String!): [Tweet!]! } # DO something type Mutation { createTweet: Tweet deleteTweet(id: ID!): Tweet updateTweet(id: ID!): Tweet }

Slide 25

Slide 25 text

@glnnrys · glennreyes.com # GET something type Query { # Get a user by the email adress getUser(email: String!): User! # Get tweets getTweets(username: String!): [Tweet!]! } # DO something type Mutation { createTweet: Tweet deleteTweet(id: ID!): Tweet updateTweet(id: ID!): Tweet }

Slide 26

Slide 26 text

@glnnrys · glennreyes.com type Tweet { id: ID! message: String! from: User } type User { name: String! email: String! bio: String age: Int tweets: [Tweet!]! username: String! } type Query { getUser(email: String!): User! getTweets(username: String!): [Tweet!]! } type Mutation { createTweet: Tweet deleteTweet(id: ID!): Tweet updateTweet(id: ID!): Tweet }

Slide 27

Slide 27 text

@glnnrys · glennreyes.com Int Float String Boolean ID

Slide 28

Slide 28 text

@glnnrys · glennreyes.com www.graphql.org

Slide 29

Slide 29 text

@glnnrys · glennreyes.com Ask for what you want

Slide 30

Slide 30 text

@glnnrys · glennreyes.com Ask for what you want And get predictable results

Slide 31

Slide 31 text

@glnnrys · glennreyes.com Ask for
 what you want And get
 predictable results

Slide 32

Slide 32 text

{ name twitter job expertise oss(type: "most-popular") elseIDo } { "name": "Glenn Reyes", "twitter": "@glnnrys", "job": "Independent Software Engineer", "expertise": ["React", "GraphQL"], "oss": ["graphpack", "react-countup"], "elseIDo": [ "Co-organize React Vienna", "Speak at conferences", "Give workshops" ] }

Slide 33

Slide 33 text

{ name twitter job expertise oss(type: "most-popular") elseIDo } { "name": "Glenn Reyes", "twitter": "@glnnrys", "job": "Independent Software Engineer", "expertise": ["React", "GraphQL"], "oss": ["graphpack", "react-countup"], "elseIDo": [ "Co-organize React Vienna", "Speak at conferences", "Give workshops" ] } GraphQL Query JSON

Slide 34

Slide 34 text

{ name twitter job expertise oss(type: "most-popular") elseIDo } { "name": "Glenn Reyes", "twitter": "@glnnrys", "job": "Independent Software Engineer", "expertise": ["React", "GraphQL"], "oss": ["graphpack", "react-countup"], "elseIDo": [ "Co-organize React Vienna", "Speak at conferences", "Give workshops" ] } GraphQL Query JSON

Slide 35

Slide 35 text

{ name twitter job } { "name": "Glenn Reyes", "twitter": "@glnnrys", "job": "Independent Software Engineer" } GraphQL Query JSON

Slide 36

Slide 36 text

@glnnrys · glennreyes.com What is GraphQL?

Slide 37

Slide 37 text

@glnnrys · glennreyes.com Query Language for APIs

Slide 38

Slide 38 text

@glnnrys · glennreyes.com Ask for
 what you want And get
 predictable results

Slide 39

Slide 39 text

@glnnrys · glennreyes.com It's Language Agnostic

Slide 40

Slide 40 text

@glnnrys · glennreyes.com

Slide 41

Slide 41 text

@glnnrys · glennreyes.com Why GraphQL?

Slide 42

Slide 42 text

@glnnrys · glennreyes.com GraphQL Architecture

Slide 43

Slide 43 text

@glnnrys · glennreyes.com Servers Clients

Slide 44

Slide 44 text

@glnnrys · glennreyes.com Makes managing data difficult
 in the frontend Servers Clients

Slide 45

Slide 45 text

@glnnrys · glennreyes.com Servers Clients GraphQL

Slide 46

Slide 46 text

@glnnrys · glennreyes.com Servers Clients GraphQL GraphQL
 handles data management for us

Slide 47

Slide 47 text

@glnnrys · glennreyes.com Servers Clients GraphQL GraphQL
 handles data management for us delivers us data exactly as needed

Slide 48

Slide 48 text

@glnnrys · glennreyes.com Servers Clients GraphQL GraphQL
 handles data management for us delivers us data exactly as needed let's us focus on the frontend

Slide 49

Slide 49 text

@glnnrys · glennreyes.com What else?

Slide 50

Slide 50 text

@glnnrys · glennreyes.com Tooling

Slide 51

Slide 51 text

@glnnrys · glennreyes.com Query IDEs

Slide 52

Slide 52 text

@glnnrys · glennreyes.com Query IDEs (IDE = Integrated Development Environment)

Slide 53

Slide 53 text

@glnnrys · glennreyes.com Query IDEs (IDE = An Editor )

Slide 54

Slide 54 text

@glnnrys · glennreyes.com github.com/graphql/graphiql

Slide 55

Slide 55 text

@glnnrys · glennreyes.com github.com/prisma/graphql-playground

Slide 56

Slide 56 text

@glnnrys · glennreyes.com Automatic Documentation

Slide 57

Slide 57 text

@glnnrys · glennreyes.com

Slide 58

Slide 58 text

@glnnrys · glennreyes.com

Slide 59

Slide 59 text

@glnnrys · glennreyes.com

Slide 60

Slide 60 text

@glnnrys · glennreyes.com const MyProfile = () => { const { data, loading } = useQuery(gql` { name email bio } `); if (loading) { return 'Loading ...'; } return ; };

Slide 61

Slide 61 text

@glnnrys · glennreyes.com Questions?

Slide 62

Slide 62 text

@glnnrys · glennreyes.com Let's get started!

Slide 63

Slide 63 text

@glnnrys · glennreyes.com github.com/glennreyes/graphql-workshop/tree/upleveled