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Ionic and GraphQL
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Yosuke Kurami
August 05, 2017
Programming
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Ionic and GraphQL
How to integrate GraphQL API into your Ionic app.
Yosuke Kurami
August 05, 2017
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Transcript
Ionic and GraphQL 2017.08.06 by Yosuke Kurami
Today’s theme
*POJDυॳ৺ऀͷԶ͕Ͳ͏ʹ͔ *POJD (SBQI2-BQQ࡞ͬͯΈͨ
EJTDMBJNFS ΄΅(SBQI2-ͷ͔͠͠·ͤΜ
Agenda • Demonstration • Introduction to GraphQL • How to
integrate GraphQL into Ionic
Demonstration
App is here: https://quramy.github.io/ionic-gql- messenger/index.html or Ionic view APP ID:
59554521
None
Do you know GraphQL ?
What’s GraphQL w 'BDFCPPL͕ఏএ͍ͯ͠Δ2VFSZ-BOHVBHF w ʹެ։ɻҰԠ3'$ͷҊ͋Δ w ࢀর࣮+BWB4DSJQUଞݴޠϥΠϒϥϦ࣮ଟ͍ w (JU)VC͕ඪ४
WFSTJPO "1*ͱͯ͠࠾༻ ݄ʙ w ҰํͰɺΠϚΠνྲྀߦͬͯͳ͍ٙʜ
Features of GraphQL ୯ҰΤϯυϙΠϯτ %FNBOE%SJWFO"SDIJUFDUVSF #VJMUJOͳܕͱεΩʔϚػߏ
1. Single Endpoint w ྫ(JU)VCW"1* w IUUQTBQJHJUIVCDPNHSBQIRMͷΈ w )551ϝιου1045 w
CPEZ BQQMJDBUJPOKTPO ͷqueryͰΫΤϦΛදݱ
1. Single Endpoint (SBQI2-RVFSZFYBNQMF query RepoSummary { repository(name: "ionic", owner:
"ionic-team") { createdAt, issues(states: OPEN) { totalCount } stargazers { totalCount } watchers { totalCount } } } https://developer.github.com/v4/explorer/
1. Single Endpoint w &OEQPJOU͕ఏڙ͢Δ"1*ύλʔϯछྨ w 2VFSZ͍ΘΏΔ(&5૬҆શ͔ͭႈͳૢ࡞Λެ։ w .VUBUJPO͍ΘΏΔ10451"5$)165%&-&5&૬ ഁյతมߋΛͱͳ͏ૢ࡞Λެ։͢Δ
w 4VCTDSJQUJPO͍ΘΏΔ1VC4VCʹ͓͚Δߪಡʹ૬ ࣮ʹ4FSWFS4JEF1VTI͕ඞཁͱͳΔ ݱঢ়XTͰUSBOTQPSU͢Δ͜ͱ͕ଟ͍
2. Demand Driven Architecture w ʮཉ͍͠ใΛཉ͍͚ͩ͠ʯཁٻͰ͖ΔΈͷ͜ͱ w ઌͷ(JU)VCͷྫͰ͋Εɺ(SBQI2-ͰҰʹ 3FQPTJUPSZͱͦͷJTTVFͷৄࡉΛऔಘ͢Δ͜ͱͰ͖Δ w
ରͯ͠3&4540"1ͷΑ͏ʹ3FTQPOTFͷܕ͕ݻఆ͞ΕΔ ܗࣜͷ4VQQMZ%SJWFO"SDIJUFDUVSFͱݺͿ w 42-41"32-+40/(SBQI 'BMDPS FUD https://qconnewyork.com/ny2015/system/files/presentation-slides/ qcon_dda_2015_iwork09_boguta_nolen.pdf
Mobile and DDA w ʮը໘ʹඞཁͳใΛඞཁͳλΠϛϯάͰཁٻͰ͖Δʯ ͱ͍͏͜ͱɺϦΫΤετճଳҬཁٻ͕γϏΞͳαʔ ϏεͰద༻ͯͦ͜͠༏Ґੑ͕ൃشͰ͖Δ w ଓڥ͕ܙ·Ε͍ͯΔ1$ΞϓϦΑΓɺ(ͰઓΘͶ ͳΒͳ͍Α͏ͳϞόΠϧΞϓϦʹͦ͜ɺ(SBQI2-͍ͯ
͍ΔͷͰɻ
3. Schema System w (SBQI2-ͷΤϯυϙΠϯτެ։͢ΔσʔλεΩʔϚΛఆٛ ͢Δඞཁ͕͋Δ w (SBQI2-༷ࣗମʹܕػߏ͕Έࠐ·Ε͍ͯΔͨΊɺ ίʔυੜ3PVUJOHϥΠϒϥϦ͕ߏங͍͢͠ type
Repository implements Node { id: ID! number: Number! createdAt: DateTime! issues: [Issue] : }
3. Schema System
Caveat w όοΫΤϯυͷ࣮ߟྀ͕ࢁͷΑ͏ʹ͋Δ / ηΩϡϦςΟ FUD w ϑΟʔϧυΛͭͭࢦఆ͢Δɺϑϩϯτͷ࣮ෛՙߴ
͘ͳΓ͔Ͷͳ͍ 3&45ͰΤϯυϙΠϯτΛࢦఆ͢Δ͚ͩ ͰࡁΜͰ͍ͨ w 3&45Ͱഓͬͨϊϋπʔϧ͕׆͔ͤͳ͍ ΤϥʔεςʔλεΛͲ͏ઃܭ͢Δ͔ʁ
Pros / Cons w 1SPT w "1*ʹੑೳͱϦιʔεઃܭͷ྆໘Λ୲อͰ͖Δ w ϚϧνΫϥΠΞϯτ 1$XFC.PCJMF
ରԠ͍͢͠ w ܕεΩʔϚʹΑΓɺपลπʔϧΛ࡞Γ͍͢ w $POT w όοΫΤϯυϑϩϯτΤϯυͱʹ࣮ෛՙߴΊ
How to integrate GraphQL into Ionic Apps
Client Libraries w 'BDFCPPL3FMBZ w 3FMBZ2-ɺಠ੍͕ࣗڧ͍ ΄΅ϑϨʔϜϫʔΫ w 3FBDU3FBDUOBUJWF
#BCFMͱͷ૬ੑྑ͍ w "QPMMP w ରԠݴޠ'84XJGU+BWB3FBDU"OHVMBS w ػೳബΊɻͷ$MJFOUϥΠϒϥϦ
Backend as a Service w αΫοͱϞόΠϧ։ൃΛ͍ͨ͠߹ͷબࢶ w ͪͳΈʹ"OHVMBSք۾Ͱ'JSFCBTF͕ڧ͍ w 'JSFCBTF'VODUJPOTͰ(SBQI2-TFSWFͨ͠ྫ
w ୯ҰΤϯυϙΠϯτͷɺϦιʔεϚοϐϯάָ͕ͳͷͰɺ 4FSWFSMFTT"SDIJUFDUVSF (SBQI2-݁ߏ؆୯
GraphQL BaaS w 3FJOEFY IUUQTBDDPVOUTSFJOEFYJP (SBQI2-#BB4͚తଘࡏɻ࠷ۙͷ׆ಈ΄΅θϩʜ w HSBQIDPPM IUUQTDPOTPMFHSBQIDPPM
"84্ʹߏங͞Εͨ#BB4 5PLZP3FHJPO BQOPSUIFBTU બՄೳ w TDBQIPME IUUQTTDBQIPMEJPBQQT ൺֱత࠷ۙʹϩʔϯν͞Εͨ#BB4"84͔Ͳ͏͔ෆ໌ͩ ͚Ͳɺݱঢ়બՄೳSFHJPOVTXFTUPSFVSPQFͷΈ
None
It’s time to dev!
Type Propagation w HSBQIDPPM 4DIFNBΛ+40/ܗࣜͰΤΫεϙʔτ w UTHSBQIRMQMVHJO ࣗ࡞ 54-BOHVBHF4FSWJDFͰ4DIFNBKTPOΛಡΈ͜Ή
ίʔυதͰΫΤϦͷิ͕༗ޮʹ w BQPMMPDPEFHFO 5BHHFE5FNQMBUF-JUFSBMͷΫΤϦΛύʔε͠ɺ 54ͷUZQFBOOPUBUJPOΛੜ
Type Propagation w BQPMMPBOHVMBS ੜ͞ΕͨUZQFΛDMJFOUʹ৯ΘͤΔ͜ͱͰɺ3YKT4USFBN ΛಘΔ w !BOHVMBSDPSF BTZODQJQFʹΑΓTUSFBN͔ΒΫΤϦ݁ՌΛऔΓग़͢ w
!BOHVMBSMBOHVBHFTFSWJDF ΫΤϦ݁Ռ (SBQI2-GSBHNFOU ͷUZQFBOOPUBUJPOΛར ༻ͯ͠ɺ"OHVMBSUFNQMBUFதͰϓϩύςΟิ
.ts or .graphql ? w BQPMMPDPEFHFOHSBQIRMϑΝΠϧʹهड़͞ΕͨRVFSZ NVUBUJPO͔ΒUZQFBOOPUBUJPOΛੜ͢Δ͜ͱՄೳ w ͜ͷ߹ HSBQIRMUBHMPBEFSͱ͍͏XFCQBDLMPBEFSΛ
͏ඞཁ͕ੜ͡ΔͨΊɺJPOJDBQQTDSJQUTDPOpH XFCQBDLDPOpHKTʹه͠·͠ΐ͏
GraphQL Result as Observable w BQPMMPBOHVMBSͷRVFSZNVUBUJPOTVCTDSJQUJPO࣮ߦ݁ Ռɺશͯ0CTFSWBCMFΛฦ٫ const users$ =
this.apollo.query<UsersQuery>({ query: users }) .map(({ data }) => data.allUsers) ; // typeof users$: Observable<UserFragment[]>
GraphQL Result as Observable ύζϧ2VFSZ.VUBUJPO4VCTDSJQUJPO͔Βɺ this.timeline$: Observable<Message[]>Λ࡞ͬͯΈΑ͏ const latestMessages$: Observable<Message[]>
= this.apollo.query({ query }); const myMessage$: Observable<Message> = this.apollo.mutate({ mutation }); const addedMessage$: Observable<Message> = this.apollo.subscribe({ subscription }); ճͪ͜Β: https://github.com/Quramy/ionic-gql-messenger/blob/master/src/pages/timeline/ timeline.ts#L68-L82
Summary
Summary w (SBQI2-ʹͭΒΈ͋ΔҰํɺϞόΠϧͱͷΈ߹Θͤ ʹເΛײ͡Δ w ࠷ۙͰ༷ʑͳ#BB4ొ͠ɺॳظίετԼ͕͖ͬͯͯ ͍Δ w "QPMMPͱपลϥΠϒϥϦͷ׆༻Ͱɺշద։ൃڥ͕खʹೖ Δ
Resources 1/2 w %FNP"QQ3FQP IUUQTHJUIVCDPN2VSBNZJPOJDHRMNFTTFOHFS w *POJDBOE(SBQI2-HVJEF3FQP IUUQTHJUIVCDPN2VSBNZJPOJDBQPMMPTJNQMFBQQ w (SBQI2-5ZQF4DSJQU-BOHVBHF4FSWJDFQMVHJO
IUUQTHJUIVCDPN2VSBNZUTHSBQIRMQMVHJO
Resources 2/2 w (SBQI2-5ZQF4DSJQU"OOPUBUJPO(FOFSBUPS IUUQTHJUIVCDPNBQPMMPHSBQIRMBQPMMPDPEFHFO w "OHVMBS"QPMMP$MJFOU IUUQEFWBQPMMPEBUBDPNBOHVMBS w HSBQIDPPM
(SBQI2-#BB4 IUUQTDPOTPMFHSBQIDPPM
About me
IAM
એͦͷ w OHTBLFͱ͍͏"OHVMBSNFFUVQΛෆఆظ։࠵͍ͯ͠·͢ w ୈճ Ր w $POOQBTTͰlOHTBLFzͰݕࡧͩʂ
એͦͷ w (SBQI2-5PLZPͱ͍͏.FFUVQΛ্ཱ͍ͪ͛ͯ·͢ w NFFUVQDPNͰl(SBQI2-5PLZPzͬͯݕࡧͯ͠Ͷʂ
Thank you.