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RubyではじめるGraphQL
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hatappi
May 29, 2019
Technology
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RubyではじめるGraphQL
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hatappi
May 29, 2019
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Transcript
RubyͰ࢝ΊΔ GraphQLೖ #23 @hatappi
Yusaku Hatanaka @hatappi Merpay Inc. Go, Ruby, etc… <<Ruby Activity>>
Roppongi.rb organizer RubyKaigi 2019
ಥવͰ͕࣭͢Ͱ͢
GET /users/1 ϦΫΤετ͠·ͨ͠ Կ͕ฦ͖ͬͯ·͔͢ʁ
ᶃ ᶄ ᶅ
ᶃ ᶄ ᶅ
༗ޮͳJSONΛฦͤΔͳΒOK ͔͠͠ϦιʔεʹΑͬͯϑΥʔϚοτ͕ҟͳΔͱɻɻɻ Τϥʔ࣌ͷϨεϙϯεϑΥʔϚοτΕ͕ͪ
userͱfriendsΛऔಘ͍ͨ͠ GET /users/1 GET /users/1/friends
ඞཁͳใΛऔಘ͢ΔͨΊʹ Կճ͔ϦΫΤετΛ͢Δ͜ͱ
GraphQL͕ ׆༂Ͱ͖Δ͔ʁʂ
GraphQL • APIͷͨΊͷΫΤϦݴޠ • ΫΤϦݴޠͷ༷ͱͯ͠ܕఆٛ͞Εͨε ΩʔϚΛఆٛͯ͠ΫΤϦΛ༻͍͍ͯ߹Θ ͤΛ͢Δ • FacebookʹΑͬͯ։ൃ͞Εͯ2015ʹOSSͱ ͯ͠ެ։͞Εͨ
• https://graphql.org/
ΫΤϦݴޠ • GraphQLͷAPIϦΫΤετΛ͢ΔͨΊͷݴޠ • σʔλऔಘܥ Query, σʔλΛ࡞ͨ͠Γߋ৽ Mutation, αʔόʔ͔ΒͷΠϕϯτ Λड͚औΔ
Subscription ͕͋Δ • GraphQL APIͷ༷Λهड़ • ֤ϑΟʔϧυʹܕΛએݴ͕ඞཁ • Int, Float, String, Boolean, IDͳͲ͕࠷ॳ͔Βఆٛ͞Ε͍ͯͯࣗͰఆٛ͢Δ͜ ͱՄೳ εΩʔϚݴޠ
GitHub GraphQL API https://developer.github.com/v4/explorer/ ۙʹࢼͤΔ!! ※ຊ൪ͷσʔλͳͷͰߋ৽ܥͳͲҙͯ͠͏ʂ
POST /graphql
ϦΫΤετ Ϩεϙϯε
ϦΫΤετ Ϩεϙϯε
͜͏͍͏ͷ͕΄͍͠!! ʹର͍ͯۙ͠ܗͰฦͯ͘͠ΕΔ
RubyͰGraphQL
graphql-ruby • GraphQLͷύʔαʔͱϥϯλΠϜͷRuby࣮ • 201905݄29 v1.9.6 ͕࠷৽ • 1.8·ͰಠࣗͷDSL͚ͩͬͨͲ1.8Ҏ߱Ϋ ϥεϕʔεͰεΩʔϚఆٛͰ͖ΔΑ͏ʹ
ͳͬͨ
RubyΒ͘͠GraphQLͷεΩʔϚΛ ఆٛ͢Δ͜ͱ͕Ͱ͖Δ
Anket + GraphQL
• Slack ্ͰΞϯέʔτΛͱΔͨΊͷαʔϏε • 2018/11ʹ βϦϦʔε • Ξϯέʔτͷ࡞ථ Slack ্͔Βߦ͏
• WEB্ͰμογϡϘʔυΛݟΔ͜ͱ͕Ͱ͖ͯ Rails 5 Ͱ࡞͞Ε͍ͯΔ • Railsͱ͔k8sͱ͔ٕज़తཁૉΛࢼ͢ͱͯ͠ϓϥΠ ϕʔτͰ࡞
ಋೖͨ݁͠Ռ
GraphiQL͕ศར • GraphQL ʹରͯ͠ΫΤϦΛൃߦ͢ΔͨΊͷπʔϧ • GithubͷAPIίϯιʔϧͰ༻͞Ε͍ͯΔ • ΫΤϦͷൃߦ͚ͩͰͳ͘ΫΤϦิAPIϦϑΝϨϯε͕͑ΔͷͰIDEͱͯ͑͠Δ • graphql-rubyΛRailsͰ͏࣌install͢Δ࣌ʹҰॹʹೖΔ
ςετ
Complexity & Depth ͷ੍ݶ͕͔͚ΒΕΔ • Complexity • 1requestʹର͢ΔComplexityΛ੍ݶ • Depth
• queryͷೖΕࢠͷ੍ݶ
Complexity fields͝ͱʹComplexityΛઃఆͰ͖ΔͷͰॏ ͍ॲཧͷੜίετΛେ͖Ίʹઃఆ͢Δͳ Ͳͷઃఆ͕Մೳ
Depth
·ͱΊ • GraphQL, graphql-rubyͷΛ͠·ͨ͠ • ୯ҰͷΤϯυϙΠϯτͳͷͰύϑΥʔϚϯεͷܭଌͳͲ͕ඞཁ • Anket ݱঢ়͖ʹ͔͠GraphQL API
Λެ։ͯ͠·ͤΜ͕ɺࠓޙ֎ ͚ʹެ։༧ఆͰ͢ʂʂ • ެ։ͨ͠ΒͥͻͬͯΈ͍ͯͩ͘͞ʂʂ