Slide 1

Slide 1 text

@devoxxua @VladimirD_42 GraphQL vs Traditional REST API Vladimir Dejanović 24 November 20184

Slide 2

Slide 2 text

Vladimir Dejanović Let’s Meet @VladimirD_42 vladimir@itshark.xyz http://itshark.xyz github.com/vladimir-dejanovic @devoxxua @VladimirD_42

Slide 3

Slide 3 text

Vladimir Dejanović Let’s Meet http://itshark.xyz @devoxxua @VladimirD_42

Slide 4

Slide 4 text

Vladimir Dejanović Let’s Meet @devoxxua @VladimirD_42

Slide 5

Slide 5 text

Vladimir Dejanović Let’s Meet and Others... @devoxxua @VladimirD_42

Slide 6

Slide 6 text

@devoxxua @VladimirD_42

Slide 7

Slide 7 text

@devoxxua @VladimirD_42 Agenda

Slide 8

Slide 8 text

@devoxxua @VladimirD_42 Agenda REST

Slide 9

Slide 9 text

@devoxxua @VladimirD_42 Agenda REST GraphQL

Slide 10

Slide 10 text

@devoxxua @VladimirD_42 Agenda REST GraphQL GraphQL vs REST

Slide 11

Slide 11 text

@devoxxua @VladimirD_42 Agenda REST GraphQL GraphQL vs REST Questions

Slide 12

Slide 12 text

@devoxxua @VladimirD_42 What is REST?

Slide 13

Slide 13 text

@devoxxua @VladimirD_42 REST http://www.ics.uci.edu/~fielding/pubs/ dissertation/rest_arch_style.htm

Slide 14

Slide 14 text

@devoxxua @VladimirD_42 REST Client-Server Architecture

Slide 15

Slide 15 text

@devoxxua @VladimirD_42 REST Statelessness Client-Server Architecture

Slide 16

Slide 16 text

@devoxxua @VladimirD_42 REST Statelessness Cacheability Client-Server Architecture

Slide 17

Slide 17 text

@devoxxua @VladimirD_42 REST Statelessness Cacheability Layered System Client-Server Architecture

Slide 18

Slide 18 text

@devoxxua @VladimirD_42 REST Statelessness Cacheability Layered System Client-Server Architecture Code on Demand (Optional)

Slide 19

Slide 19 text

@devoxxua @VladimirD_42 REST Statelessness Cacheability Layered System Uniform Interface Client-Server Architecture Code on Demand (Optional)

Slide 20

Slide 20 text

@devoxxua @VladimirD_42 REST in real life

Slide 21

Slide 21 text

@devoxxua @VladimirD_42 REST in real life

Slide 22

Slide 22 text

@devoxxua @VladimirD_42 REST in real life

Slide 23

Slide 23 text

@devoxxua @VladimirD_42 REST in real life

Slide 24

Slide 24 text

@devoxxua @VladimirD_42 Simple Blog

Slide 25

Slide 25 text

@devoxxua @VladimirD_42 Simple Blog Author id name

Slide 26

Slide 26 text

@devoxxua @VladimirD_42 Simple Blog Author id name Post id title body authorId

Slide 27

Slide 27 text

@devoxxua @VladimirD_42 Simple Blog Author id name Post id title body authorId Comment id text postId authorId

Slide 28

Slide 28 text

@devoxxua @VladimirD_42 Simple Blog https://github.com/vladimir-dejanovic/graphql- vs-traditional-rest-api-conftalk_demo Branch: rest-0.1

Slide 29

Slide 29 text

@devoxxua @VladimirD_42 What is GraphQL?

Slide 30

Slide 30 text

@devoxxua @VladimirD_42 GraphQL GraphQL is a query language for APIs

Slide 31

Slide 31 text

@devoxxua @VladimirD_42 GraphQL is specification

Slide 32

Slide 32 text

@devoxxua @VladimirD_42 GraphQL graphql-java

Slide 33

Slide 33 text

@devoxxua @VladimirD_42 GraphQL Talking is boring Show Code

Slide 34

Slide 34 text

@devoxxua @VladimirD_42 Simple Blog GraphQL Code https://github.com/vladimir-dejanovic/graphql- vs-traditional-rest-api-conftalk_demo Branch: graphql-0.1

Slide 35

Slide 35 text

@devoxxua @VladimirD_42 GraphQL Statelessness Cacheability Layered System Uniform Interface Client-Server Architecture Code on Demand (Optional)

Slide 36

Slide 36 text

@devoxxua @VladimirD_42 GraphQL Statelessness Cacheability Layered System Uniform Interface Client-Server Architecture Code on Demand (Optional)

Slide 37

Slide 37 text

@devoxxua @VladimirD_42 GraphQL Statelessness Cacheability Layered System Uniform Interface Client-Server Architecture Code on Demand (Optional)

Slide 38

Slide 38 text

@devoxxua @VladimirD_42 GraphQL Statelessness Cacheability Layered System Uniform Interface Client-Server Architecture Code on Demand (Optional)

Slide 39

Slide 39 text

@devoxxua @VladimirD_42 GraphQL Statelessness Cacheability Layered System Uniform Interface Client-Server Architecture Code on Demand (Optional)

Slide 40

Slide 40 text

@devoxxua @VladimirD_42 GraphQL Statelessness Cacheability Layered System Uniform Interface Client-Server Architecture Code on Demand (Optional)

Slide 41

Slide 41 text

@devoxxua @VladimirD_42 GraphQL Statelessness Cacheability Layered System Uniform Interface Client-Server Architecture Code on Demand (Optional)

Slide 42

Slide 42 text

@devoxxua @VladimirD_42 REST Schema Optional

Slide 43

Slide 43 text

@devoxxua @VladimirD_42 REST Schema Optional Good practice, but still optional

Slide 44

Slide 44 text

@devoxxua @VladimirD_42 GraphQL Schema is MANDATORY

Slide 45

Slide 45 text

@devoxxua @VladimirD_42 GraphQL

Slide 46

Slide 46 text

@devoxxua @VladimirD_42 GraphQL

Slide 47

Slide 47 text

@devoxxua @VladimirD_42 GraphQL

Slide 48

Slide 48 text

@devoxxua @VladimirD_42 GraphQL

Slide 49

Slide 49 text

@devoxxua @VladimirD_42 GraphQL

Slide 50

Slide 50 text

@devoxxua @VladimirD_42 GraphQL

Slide 51

Slide 51 text

@devoxxua @VladimirD_42 REST

Slide 52

Slide 52 text

@devoxxua @VladimirD_42 Simple Blog GraphQL Code https://github.com/vladimir-dejanovic/graphql- vs-traditional-rest-api-conftalk_demo Branch: graphql-0.2

Slide 53

Slide 53 text

@devoxxua @VladimirD_42 GraphQL Post Comment Author

Slide 54

Slide 54 text

@devoxxua @VladimirD_42 GraphQL Post Comment Author

Slide 55

Slide 55 text

@devoxxua @VladimirD_42 GraphQL Post Comment Author

Slide 56

Slide 56 text

@devoxxua @VladimirD_42 GraphQL Post Comment Author

Slide 57

Slide 57 text

@devoxxua @VladimirD_42 GraphQL Post Comment Author

Slide 58

Slide 58 text

@devoxxua @VladimirD_42 GraphQL Post Comment Author

Slide 59

Slide 59 text

@devoxxua @VladimirD_42 Simple Blog GraphQL Code https://github.com/vladimir-dejanovic/graphql- vs-traditional-rest-api-conftalk_demo Branch: graphql-0.3

Slide 60

Slide 60 text

@devoxxua @VladimirD_42 GraphQL GraphQL is a query language for APIs

Slide 61

Slide 61 text

@devoxxua @VladimirD_42 GraphQL API

Slide 62

Slide 62 text

@devoxxua @VladimirD_42 GraphQL Powerful Query Language

Slide 63

Slide 63 text

@devoxxua @VladimirD_42 GraphQL Client call the shots

Slide 64

Slide 64 text

@devoxxua @VladimirD_42 GraphQL Post Comment Author

Slide 65

Slide 65 text

@devoxxua @VladimirD_42 GraphQL Post Comment Author

Slide 66

Slide 66 text

@devoxxua @VladimirD_42 Abuse of GraphQL query { allPosts { title comments { text createdBy { name posts { title comments { text

Slide 67

Slide 67 text

@devoxxua @VladimirD_42 Abuse of GraphQL query { allPosts { title comments { text createdBy { name posts { title comments { text

Slide 68

Slide 68 text

@devoxxua @VladimirD_42 Protect from Abuse

Slide 69

Slide 69 text

@devoxxua @VladimirD_42 Protect from Abuse Time Out

Slide 70

Slide 70 text

@devoxxua @VladimirD_42 Protect from Abuse Time Out Max Query Depth

Slide 71

Slide 71 text

@devoxxua @VladimirD_42 Protect from Abuse Time Out Max Query Depth Max Query Complexity

Slide 72

Slide 72 text

@devoxxua @VladimirD_42 Protect from Abuse Time Out Max Query Depth Max Query Complexity Throttling

Slide 73

Slide 73 text

@devoxxua @VladimirD_42 GraphQL query language for API

Slide 74

Slide 74 text

@devoxxua @VladimirD_42 GraphQL query language for API Query

Slide 75

Slide 75 text

@devoxxua @VladimirD_42 GraphQL query language for API Query Mutation

Slide 76

Slide 76 text

@devoxxua @VladimirD_42 Simple Blog GraphQL Code https://github.com/vladimir-dejanovic/graphql- vs-traditional-rest-api-conftalk_demo Branch: graphql-0.4

Slide 77

Slide 77 text

@devoxxua @VladimirD_42 GraphQL query language for API Query Mutation Subscription

Slide 78

Slide 78 text

@devoxxua @VladimirD_42 Simple Blog GraphQL Code https://github.com/vladimir-dejanovic/graphql- spring-boot-example

Slide 79

Slide 79 text

@devoxxua @VladimirD_42 GraphQL questions to ask

Slide 80

Slide 80 text

@devoxxua @VladimirD_42 GraphQL questions to ask Error Responses

Slide 81

Slide 81 text

@devoxxua @VladimirD_42 GraphQL questions to ask Error Responses Performance & Cache

Slide 82

Slide 82 text

@devoxxua @VladimirD_42 GraphQL questions to ask Error Responses Performance & Cache Authentication & Authorisation

Slide 83

Slide 83 text

@devoxxua @VladimirD_42 public class MyContext extends GraphQLContext { // our custom stuff } Authentication & Authorisation

Slide 84

Slide 84 text

@devoxxua @VladimirD_42 public class MyContext extends GraphQLContext { // our custom stuff } Authentication & Authorisation

Slide 85

Slide 85 text

@devoxxua @VladimirD_42 public class MyContext extends GraphQLContext { // our custom stuff } Authentication & Authorisation

Slide 86

Slide 86 text

@devoxxua @VladimirD_42 public class MyContext extends GraphQLContext { // our custom stuff } Authentication & Authorisation

Slide 87

Slide 87 text

@devoxxua @VladimirD_42 public class MyContext extends GraphQLContext { // our custom stuff } Authentication & Authorisation

Slide 88

Slide 88 text

@devoxxua @VladimirD_42 public class GraphQLEntryPoint extends SimpleGraphQLServlet { @Override protected GraphQLContext createContext(Optional rq, Optional rp) { MyContext myContext = …. return myContext; } ……...

Slide 89

Slide 89 text

@devoxxua @VladimirD_42 public class GraphQLEntryPoint extends SimpleGraphQLServlet { @Override protected GraphQLContext createContext(Optional rq, Optional rp) { MyContext myContext = …. return myContext; } ……...

Slide 90

Slide 90 text

@devoxxua @VladimirD_42 public class GraphQLEntryPoint extends SimpleGraphQLServlet { @Override protected GraphQLContext createContext(Optional rq, Optional rp) { MyContext myContext = …. return myContext; } ……...

Slide 91

Slide 91 text

@devoxxua @VladimirD_42 public class GraphQLEntryPoint extends SimpleGraphQLServlet { @Override protected GraphQLContext createContext(Optional rq, Optional rp) { MyContext myContext = …. return myContext; } ……...

Slide 92

Slide 92 text

@devoxxua @VladimirD_42 public class GraphQLEntryPoint extends SimpleGraphQLServlet { @Override protected GraphQLContext createContext(Optional rq, Optional rp) { MyContext myContext = …. return myContext; } ……...

Slide 93

Slide 93 text

@devoxxua @VladimirD_42 public class GraphQLEntryPoint extends SimpleGraphQLServlet { @Override protected GraphQLContext createContext(Optional rq, Optional rp) { MyContext myContext = …. return myContext; } ……...

Slide 94

Slide 94 text

@devoxxua @VladimirD_42 public class GraphQLEntryPoint extends SimpleGraphQLServlet { @Override protected GraphQLContext createContext(Optional rq, Optional rp) { MyContext myContext = …. return myContext; } ……...

Slide 95

Slide 95 text

@devoxxua @VladimirD_42 public class GraphQLEntryPoint extends SimpleGraphQLServlet { @Override protected GraphQLContext createContext(Optional rq, Optional rp) { MyContext myContext = …. return myContext; } ……...

Slide 96

Slide 96 text

@devoxxua @VladimirD_42 public class GraphQLEntryPoint extends SimpleGraphQLServlet { @Override protected GraphQLContext createContext(Optional rq, Optional rp) { MyContext myContext = …. return myContext; } ……...

Slide 97

Slide 97 text

@devoxxua @VladimirD_42 public class GraphQLEntryPoint extends SimpleGraphQLServlet { @Override protected GraphQLContext createContext(Optional rq, Optional rp) { MyContext myContext = …. return myContext; } ……...

Slide 98

Slide 98 text

@devoxxua @VladimirD_42 public class GraphQLEntryPoint extends SimpleGraphQLServlet { @Override protected GraphQLContext createContext(Optional rq, Optional rp) { MyContext myContext = …. return myContext; } ……...

Slide 99

Slide 99 text

@devoxxua @VladimirD_42 public class GraphQLEntryPoint extends SimpleGraphQLServlet { @Override protected GraphQLContext createContext(Optional rq, Optional rp) { MyContext myContext = …. return myContext; } ……...

Slide 100

Slide 100 text

@devoxxua @VladimirD_42 public class Query implements GraphQLQueryResolver { public List allPosts(DataFetchingEnvironment env) { MyContext myContext = env.getContext(); ………. Authentication & Authorisation

Slide 101

Slide 101 text

@devoxxua @VladimirD_42 public class Query implements GraphQLQueryResolver { public List allPosts(DataFetchingEnvironment env) { MyContext myContext = env.getContext(); ………. Authentication & Authorisation

Slide 102

Slide 102 text

@devoxxua @VladimirD_42 public class Query implements GraphQLQueryResolver { public List allPosts(DataFetchingEnvironment env) { MyContext myContext = env.getContext(); ………. Authentication & Authorisation

Slide 103

Slide 103 text

@devoxxua @VladimirD_42 public class Query implements GraphQLQueryResolver { public List allPosts(DataFetchingEnvironment env) { MyContext myContext = env.getContext(); ………. Authentication & Authorisation

Slide 104

Slide 104 text

@devoxxua @VladimirD_42 public class Query implements GraphQLQueryResolver { public List allPosts(DataFetchingEnvironment env) { MyContext myContext = env.getContext(); ………. Authentication & Authorisation

Slide 105

Slide 105 text

@devoxxua @VladimirD_42 public class Query implements GraphQLQueryResolver { public List allPosts(DataFetchingEnvironment env) { MyContext myContext = env.getContext(); ………. Authentication & Authorisation

Slide 106

Slide 106 text

@devoxxua @VladimirD_42 public class Query implements GraphQLQueryResolver { public List allPosts(DataFetchingEnvironment env) { MyContext myContext = env.getContext(); ………. Authentication & Authorisation

Slide 107

Slide 107 text

@devoxxua @VladimirD_42 public class Query implements GraphQLQueryResolver { public List allPosts(DataFetchingEnvironment env) { MyContext myContext = env.getContext(); ………. Authentication & Authorisation

Slide 108

Slide 108 text

@devoxxua @VladimirD_42 GraphQL Vs Traditional REST API

Slide 109

Slide 109 text

@devoxxua @VladimirD_42 GraphQL vs Traditional REST API “Similar”

Slide 110

Slide 110 text

@devoxxua @VladimirD_42 GraphQL vs Traditional REST API “Similar” Tools & Knowledge

Slide 111

Slide 111 text

@devoxxua @VladimirD_42 GraphQL vs Traditional REST API “Similar” Tools & Knowledge “Old Tricks”

Slide 112

Slide 112 text

@devoxxua @VladimirD_42 GraphQL vs Traditional REST API GraphQL rich SDL

Slide 113

Slide 113 text

@devoxxua @VladimirD_42 GraphQL vs Traditional REST API GraphQL rich SDL GraphQL powerful Query Language

Slide 114

Slide 114 text

@devoxxua @VladimirD_42 Thank You

Slide 115

Slide 115 text

@devoxxua @VladimirD_42 References https://github.com/vladimir-dejanovic/graphql- vs-traditional-rest-api-conftalk_demo http://www.ics.uci.edu/~fielding/pubs/dissertat ion/rest_arch_style.htm https://github.com/vladimir-dejanovic/graphql- spring-boot-example

Slide 116

Slide 116 text

Questions @VladimirD_42 vladimir@itshark.xyz http://itshark.xyz @devoxxua @VladimirD_42