RubyではじめるGraphQL

#ebisurb

Transcript

1. RubyͰ࢝ΊΔ
   GraphQLೖ໳
   #23
   @hatappi
   

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2. Yusaku Hatanaka
   @hatappi
   Merpay Inc.
   Go, Ruby, etc…
   <>
   Roppongi.rb organizer
   RubyKaigi 2019
   

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3. ಥવͰ͕࣭͢໰Ͱ͢
   

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4. GET /users/1 ϦΫΤετ͠·ͨ͠
   Կ͕ฦ͖ͬͯ·͔͢ʁ
   

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5. ᶃ ᶄ ᶅ
   

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6. ᶃ ᶄ ᶅ
   

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7. ༗ޮͳJSONΛฦͤΔͳΒOK
   ͔͠͠ϦιʔεʹΑͬͯϑΥʔϚοτ͕ҟͳΔͱɻɻɻ
   Τϥʔ࣌ͷϨεϙϯεϑΥʔϚοτ๨Ε͕ͪ
   

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8. userͱfriendsΛऔಘ͍ͨ͠
   GET /users/1
   GET /users/1/friends
   

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9. ඞཁͳ৘ใΛऔಘ͢ΔͨΊʹ
   Կճ͔ϦΫΤετΛ͢Δ͜ͱ΋
   

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10. GraphQL͕
    ׆༂Ͱ͖Δ͔΋ʁʂ
    

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11. GraphQL
    • APIͷͨΊͷΫΤϦݴޠ
    • ΫΤϦݴޠͷ࢓༷ͱͯ͠ܕఆٛ͞Εͨε
    ΩʔϚΛఆٛͯ͠ΫΤϦΛ༻͍ͯ໰͍߹Θ
    ͤΛ͢Δ
    • FacebookʹΑͬͯ։ൃ͞Εͯ2015೥ʹOSSͱ
    ͯ͠ެ։͞Εͨ
    • https://graphql.org/
    

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12. ΫΤϦݴޠ
    • GraphQLͷAPI΁ϦΫΤετΛ͢ΔͨΊͷݴޠ
    • σʔλऔಘܥ͸ Query, σʔλΛ࡞੒ͨ͠Γߋ৽͸ Mutation, αʔόʔ͔ΒͷΠϕϯτ
    Λड͚औΔ Subscription ͕͋Δ
    • GraphQL APIͷ࢓༷Λهड़
    • ֤ϑΟʔϧυʹ͸ܕΛએݴ͕ඞཁ
    • Int, Float, String, Boolean, IDͳͲ͕࠷ॳ͔Βఆٛ͞Ε͍ͯͯࣗ෼Ͱఆٛ͢Δ͜
    ͱ΋Մೳ
    εΩʔϚݴޠ
    

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13. GitHub
    GraphQL API
    https://developer.github.com/v4/explorer/
    ਎ۙʹࢼͤΔ!!
    ※ຊ൪ͷσʔλͳͷͰߋ৽ܥͳͲ͸஫ҙͯ͠࢖͏ʂ
    

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14. POST /graphql
    

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15. ϦΫΤετ Ϩεϙϯε
    

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16. ϦΫΤετ Ϩεϙϯε
    

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17. ͜͏͍͏ͷ͕΄͍͠!!
    ʹର͍ͯۙ͠ܗͰฦͯ͘͠ΕΔ
    

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18. RubyͰGraphQL
    

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19. graphql-ruby
    • GraphQLͷύʔαʔͱϥϯλΠϜͷRuby࣮૷
    • 2019೥05݄29೔ v1.9.6 ͕࠷৽
    • 1.8·ͰಠࣗͷDSL͚ͩͬͨͲ1.8Ҏ߱͸Ϋ
    ϥεϕʔεͰεΩʔϚఆٛͰ͖ΔΑ͏ʹ
    ͳͬͨ
    

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20. RubyΒ͘͠GraphQLͷεΩʔϚΛ
    ఆٛ͢Δ͜ͱ͕Ͱ͖Δ
    

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21. Anket + GraphQL
    

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22. • Slack ্ͰΞϯέʔτΛͱΔͨΊͷαʔϏε
    • 2018/11ʹ βϦϦʔε
    • Ξϯέʔτͷ࡞੒΍౤ථ͸ Slack ্͔Βߦ͏
    • WEB্ͰμογϡϘʔυΛݟΔ͜ͱ͕Ͱ͖ͯ
    Rails 5 Ͱ࡞੒͞Ε͍ͯΔ
    • Railsͱ͔k8sͱ͔ٕज़తཁૉΛࢼ͢৔ͱͯ͠ϓϥΠ
    ϕʔτͰ࡞੒
    

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23. ಋೖͨ݁͠Ռ
    

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24. GraphiQL͕ศར
    • GraphQL ʹରͯ͠ΫΤϦΛൃߦ͢ΔͨΊͷπʔϧ
    • GithubͷAPIίϯιʔϧͰ΋࢖༻͞Ε͍ͯΔ
    • ΫΤϦͷൃߦ͚ͩͰͳ͘ΫΤϦิ׬΍APIϦϑΝϨϯε͕࢖͑ΔͷͰIDEͱͯ͠΋࢖͑Δ
    • graphql-rubyΛRailsͰ࢖͏࣌͸install͢Δ࣌ʹҰॹʹೖΔ
    

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25. ςετ
    

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26. Complexity & Depth ͷ੍ݶ͕͔͚ΒΕΔ
    • Complexity
    • 1requestʹର͢ΔComplexityΛ੍ݶ
    • Depth
    • queryͷೖΕࢠͷ੍ݶ
    

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27. Complexity
    fields͝ͱʹComplexityΛઃఆͰ͖ΔͷͰॏ
    ͍ॲཧͷੜ੒ίετΛେ͖Ίʹઃఆ͢Δͳ
    Ͳͷઃఆ͕Մೳ
    

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28. Depth
    

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29. ·ͱΊ
    • GraphQL, graphql-rubyͷ࿩Λ͠·ͨ͠
    • ୯ҰͷΤϯυϙΠϯτͳͷͰύϑΥʔϚϯεͷܭଌͳͲ͸޻෉͕ඞཁ
    • Anket ͸ݱঢ়಺޲͖ʹ͔͠GraphQL API Λެ։ͯ͠·ͤΜ͕ɺࠓޙ֎޲
    ͚ʹ΋ެ։༧ఆͰ͢ʂʂ
    • ެ։ͨ͠Βͥͻ࢖ͬͯΈ͍ͯͩ͘͞ʂʂ
    

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