GraphQL and Schema-First Development

GraphQL NightでのLT発表資料です

1. ,ōIFJ
   :BNBNPUP
   
   !LZNNU
   
   (SBQI2-φΠτ
   -5 (SBQI2-ͱ
   εΩʔϚϑΝʔετ։ൃ
2. (.0ϖύϘ
   
   ΧϥʔϛʔϦϐʔτ
   
   CMPHLZNNUDPN ,ōhei Yamamoto /
   !LZNNU SVCZ
   SBJMT
   ZPLPIBNBSC
   
   
4. ͋ΒͨΊͯ঺հ͠·͢
5. εΩʔϚϑΝʔετ։ൃ wϑϩϯτΤϯυ
   '&
   ͱόοΫΤϯυ
   #&
   ؒͷ
 ΠϯλʔϑΣʔεఆٛΛ։ൃνʔϜ಺ͰઌʹܾΊΔ
   wͦͷ͋ͱ'&#&ʹ෼͔Εͯฒߦ։ൃ͢Δ
6. ฒߦ։ൃ w'&͸#&ͷ࣮૷͕ऴΘΔ·ͰϞοΫαʔόΛ࢖ͬͨΓ ͢Δ
   w3&45ͷ৔߹
   w0QFO"1*
   4XBHHFS
   ͰઌʹΠϯλϑΣʔεΛॻ͘
   wपลπʔϧ
   4XBHHFS
   $PEFHFOͳͲ
   Λ࢖ͬͯ
 ϞοΫαʔόΛ࡞Δ
7. ΠϯλʔϑΣʔεఆٛྫ
   0QFO"1*ͷ৔߹ paths: /pets/{petId}: get: parameters: - name: petId in: path required: true schema: type: string responses: '200': content: application/json: schema: required: - id - name properties: id: type: integer format: int64 name: type: string (&5
   QFUTQFU@JE
8. ΧϥʔϛʔϦϐʔτ͸
   εΩʔϚϑΝʔετ։ൃ͍ͯ͠·͢
   
   '&
   7VFKT
   #&
   3BJMT
9. (SBQI2-ͰεΩʔϚϑΝʔετ։ൃ w3&45
   "1*ͰεΩʔϚΛܾΊ͔ͯΒ'&ͱ#&Ͱ
 ฒߦ։ൃΛਐΊΔͷ͸ศརͩͬͨ
   wҰ෦(SBQI2-Λಋೖͯ͠Έ͍ͯΔ
   w3BJMTͳͷͰHSBQIRMSVCZ
   w(SBQI2-Ͱ΋ಉ͡Α͏ʹͰ͖ͳ͍͔ʁ
10. (SBQI2-ʹ͓͚ΔεΩʔϚϑΝʔετͱ͸ wεΩʔϚ͚ͩઌʹܾΊΔ
    w#&͸SFTPMWFSΛ͋ͱͰ࣮૷͢Δ
    w'&͕࢖͏ϞοΫαʔό͸Ͳ͏͢Δʁ
11. "QPMMPͱHSBQIRMSVCZΛ
 ૊Έ߹ΘͤͯϞοΫαʔόΛ࡞ΕΔ
12. HSBQIRMSVCZ w3VCZͷγϯλοΫεͰ(SBQI2-εΩʔϚΛॻ͘
    w(SBQI2-ͷεΩʔϚΛμϯϓͰ͖Δ
13. 3VCZͰεΩʔϚΛॻ͘ class Types::QueryType < Types::BaseObject field :viewer, Types::UserType, null: true # resolverΛॻ͍ͯͳ͍ʂ end class Types::UserType < Types::BaseObject field :email, String, null: true field :popularPosts, [Types::PostType], null: true # resolverΛॻ͍ͯͳ͍ʂ end class Types::PostType < Types::BaseObject field :title, String, null: true end
14. HSBQIRMSVCZͰεΩʔϚΛμϯϓ FooBarSchema.to_definition # ҎԼͷจࣈྻΛऔಘ͢Δ type Query { viewer: User } type User { email: String popularPosts: [Post!] } type Post { title: String }
15. "QPMMP w"QPMMPͷ(SBQI2-
    5PPMTΛ࢖͏
    w.PDLJOHͱ͍͏ػೳ͕͋Δ
    w(SBQI2-ͷεΩʔϚΛ৯ΘͤΔͱϞοΫαʔό͕
 ࡞ΕΔ
16. (SBQI2-
    5PPMTͰϞοΫαʔό // express, graphql-express, body-parserͳͲΛrequire import { addMockFunctionsToSchema, makeExecutableSchema } = require('graphql-tools'); const schema = makeExecutableSchema({ /* μϯϓͨ͠εΩʔϚจࣈྻ */ }); const mocks = require('./mocks') addMockFunctionsToSchema({ schema, mocks }); const app = express(); app.use('/graphql', bodyParser.json(), graphqlExpress({ schema })); app.listen(3000, () => { console.log('GraphQL mock server is running!!1'); });
17. (SBQI2-
    5PPMTͰϞοΫαʔό // mocks.js module.exports = { User: () => ({ email: 'kymmt90@example.com', }), Post: () => ({ title: 'The Awesome Post', }), }; ϞοΫαʔό͕ฦ͢μϛʔσʔλΛॻ͚Δ
    ࢦఆ͠ͳ͚Ε͹εΧϥʔܕͷ஋͸"QPMMP͕
    ద౰ʹฦ͢
18. ϞοΫαʔόͷ
    1045
    HSBQIRM
    Λୟ͍༷ͨࢠ
19. "QPMMPͱHSBQIRMSVCZΛ
 ૊Έ߹ΘͤͯϞοΫαʔόΛ࡞Εͨ
20. εΩʔϚϑΝʔετ։ൃͰ͖Δʂ
 ศརʂʂ
21. ৄ͘͠͸ͪ͜ΒͰ
    HJUIVCDPNLZNNUTDIFNBpSTUHSBQIRMFYBNQMF
22. ࢀߟ wIUUQCMPHLZNNUDPNFOUSZNPDLJOHHSBQIRMTFSWFSXJUI SBJMTBOEBQPMMP
    wIUUQTXXXBQPMMPHSBQIRMDPNEPDTHSBQIRMUPPMT NPDLJOHIUNM