film character species homeworld episode 

film character species homeworld episode GR APHQL IN REAL L IFE ROBERTO ORGIU - @_TIWIZ 

the problem 

the portrait version I N T R O D U C I N G 

the landscape version W H I C H B E C O M E S 

Fun fact GraphQL.replace(REST) usually returns false 

Architectural Pattern Query Language 

Leverage Protocol Use own Conventions 

Versioning Evolution 

Full request Client Performances 

Ease of Caching DIY Cache 

Query Strings Query Language 

Multiple Endpoints Single Endpoint 

Unified Precise 

What is GraphQ What is GraphQL? D E E P D I V E I N T O 

graphqlbin.com GraphQLBin insomnia.rest/graphql Insomnia altair.sirmuel.design Altair swapi.graph.cool GraphCool graphql.org/swapi-graphql GraphiQL 

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WHY APOLLO? Compile time safety Caching Community Code generation 

buildscriptT{ repositoriesT{ google()T }A dependenciesT{ classpathA"com.android.tools.build:gradle:$tools_version" classpathB"org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" }B }C allprojectsT{ repositoriesB{ google()B }D }E 

buildscriptT{ repositoriesT{ google()T jcenter() }A dependenciesT{ classpathA"com.android.tools.build:gradle:$tools_version" classpathB"org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" classpath "com.apollographql.apollo:gradle-plugin:$apollo_version" }B }C allprojectsT{ repositoriesB{ google()B jcenter() }D }E 

buildscriptT{ repositoriesT{ google()T jcenter() }A dependenciesT{ classpathA"com.android.tools.build:gradle:$tools_version" classpathB"org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" classpath "com.apollographql.apollo:gradle-plugin:$apollo_version" }B }C allprojectsT{ repositoriesB{ google()B jcenter() }D }E 

apply plugin: 'com.android.application' apply plugin: 'kotlin-android' apply plugin: 'kotlin-android-extensions' android { ... } 

apply plugin: 'com.android.application' apply plugin: 'kotlin-android' apply plugin: 'kotlin-android-extensions' apply plugin: 'com.apollographql.android' android { ... } 

dependencies { ... implementation "com.apollographql.apollo:apollo-runtime:$apollo_version" implementation "com.apollographql.apollo:apollo-rx2-support:$apollo_version" ... } 

DOWNSIDES Apollo-plugin schema.json *.graphql X X 

testing 

testing Compile time safety MockWebServer 

> Task :apollo:generateDebugApolloIR FAILED .../android/apollo/Query.graphql: Cannot query field "nam" on type "YourType". Did you mean "name"? error: Validation of GraphQL query document failed FAILURE: Build failed with an exception. 

@get:Rule val mockWebServer = MockWebServerRule() mockWebServer.enqueueResponse("/response.json") val testApolloClient = ApolloClient.builder() .serverUrl(mockWebServer.url) .okHttpClient(client) .build() 

WHY? 

CDN Android Back end Cache 8 KB limit 

Solutions 2 solutions O k H t t p I n t e r c e p t o r A u t o m a t i c P e r s i s t e d Q u e r i e s W e f o u n d 

query filmById($filmId: ID){ film(filmID :$filmId){ title episodeID characterConnectionT{ charactersT{ name homeworldT{ name }A speciesT{ name classification }B filmConnectionT{ filmsT{ title episodeID }C }D }E }F }G }H A u t o m a t i c P e r s i s t e d Q u e r i e s 

query filmById($filmId: ID){ film(filmID :$filmId){ title episodeID characterConnectionT{ charactersT{ name homeworldT{ name }A speciesT{ name classification }B filmConnectionT{ filmsT{ title episodeID }C }D }E }F }G }H A u t o m a t i c P e r s i s t e d Q u e r i e s variables { "filmId" : 1 }A query: query filmById($filmId: ID) { film(filmId :$filmId) { title episodeID characterConnection { name homeworld{ name }B species { name classification }C filmConnection { films { title episodeID }D }E }F }G }H operationName: filmById 

query filmById($filmId: ID){ film(filmID :$filmId){ title episodeID characterConnectionT{ charactersT{ name homeworldT{ name }A speciesT{ name classification }B filmConnectionT{ filmsT{ title episodeID }C }D }E }F }G }H A u t o m a t i c P e r s i s t e d Q u e r i e s variables { "filmId" : 1 }A query: query filmById($filmId: ID) { film(filmId :$filmId) { title episodeID characterConnection { name homeworld{ name }B species { name classification }C filmConnection { films { title episodeID }D }E }F }G }H operationName: filmById operationName: filmById variables { "filmId" : 1 }T 

query filmById($filmId: ID){ film(filmID :$filmId){ title episodeID characterConnectionT{ charactersT{ name homeworldT{ name }A speciesT{ name classification }B filmConnectionT{ filmsT{ title episodeID }C }D }E }F }G }H A u t o m a t i c P e r s i s t e d Q u e r i e s variables { "filmId" : 1 }A query: query filmById($filmId: ID) { film(filmId :$filmId) { title episodeID characterConnection { name homeworld{ name }B species { name classification }C filmConnection { films { title episodeID }D }E }F }G }H operationName: filmById operationName: filmById variables { "filmId" : 1 }T 

A u t o m a t i c P e r s i s t e d Q u e r i e s operationName: filmById variables { "filmId" : 1 }T extensions: { persistedQuery: { "version": 1, "sha256Hash": "queryHash" } } 

Android Back end Query Hash Query Hash Not Found Whole Query + Query Hash Response 

@get:Rule valTmockWebServerT=TMockWebServerRule() mockWebServer.enqueueResponse(“/response.json") valTurlT=TmockWebServer.url valßapolloClientT= ApolloClient.builder() .serverUrl(url) .okHttpClient(client) .build() 

valßapolloClientT= ApolloClient.builder() .serverUrl(url) .okHttpClient(client) .build() 

valßapolloClientT= ApolloClient.builder() .serverUrl(url) .okHttpClient(client) .enableAutoPersistedQueries(true) .build() 

Tricks Tricks J U S T S O M E query SampleQuery { assetID: sourceId fingerprint: modified headlineInfo: headline { __typename headline: default }A lastUpdated: lastModification }B 

Tricks Tricks L A B E L F I E L D S C A N G O A L O N G D I S T A N C E J U S T S O M E query SampleQuery { assetID: sourceId fingerprint: modified headlineInfo: headline { __typename headline: default }A lastUpdated: lastModification }B 

Tricks Tricks A P O L L O A D D S T Y P E N A M E E V E R Y W H E R E J U S T S O M E query SampleQuery { assetID: sourceId fingerprint: modified headlineInfo: headline { __typename headline: default }A lastUpdated: lastModification }B 

Tricks Tricks S C H E M A A N D Q U E R I E S C A N B E M O V E D J U S T S O M E apollo { schemaFilePath = "/path/my-schema.json" outputPackageName = "pkg.graphql.api" } 

Tricks Tricks S U P P O R T S F O R J A V A B E A N S E M A N T I C S J U S T S O M E class Type { public Another getAnother() { ... } } //build.gradle apollo { useJavaBeansSemanticNaming = true } 

Tricks Tricks R E M E M B E R T O B E O N L I N E ¯ \ _ ( ツ ) _ / ¯ J U S T S O M E 

THANK YOU!