gRPC with Go - Speaker Deck

gRPC with Go

by ktr

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GRPC with Go @ktr_0731

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Profile $ whoami ‣ Taro Aoki / @ktr_0731 ‣ s123@u-aizu ‣ αʔόαΠυΤϯδχΞ ‣ Go ͕޷͖ (9 ϲ݄͘Β͍) ‣ Web ͕޷͖

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What is gRPC?

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gRPC A RPC library and framework ‣ IDL(Interface Deﬁnition Language) Ͱ Service Λఆٛ ‣ σϑΥϧτ͸ Protocol Buffers ‣ αʔό / ΫϥΠΞϯτͷελϒΛࣗಈͰ࡞ͬͯ͘ΕΔ ‣ Interceptors ͕ศར ‣ middleware ͷΑ͏ͳ΋ͷ

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gRPC A RPC library and framework ‣ package ‣ messages ‣ services ‣ RPCs

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gRPC A RPC library and framework ‣ IDL(Interface Deﬁnition Language) Ͱ Service Λఆٛ ‣ σϑΥϧτ͸ Protocol Buffers ‣ αʔό / ΫϥΠΞϯτͷελϒΛࣗಈͰ࡞ͬͯ͘ΕΔ ‣ Interceptors ͕ศར ΋ͷָ͘͢͝!!

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gRPC What does "g"RPC stands for? ‣ 1.0: gRPC ‣ 1.1: good ‣ 1.2: green ‣ 1.3: gentle ‣ 1.4: gregarious

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gRPC gRPC with Go ‣ gRPC ͱ Go ͸૬ੑ͕ྑ͍ ‣ Interceptor ͕࢖͑Δ ‣ Go ޲͚ͷ gRPC Ecosystem middleware ͕ଟ͍ ‣ ͲͪΒ΋੩తܕ෇͚

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gRPC gRPC with Go ‣ gRPC ͱ Go ͸૬ੑ͕ྑ͍ ‣ Interceptor ͕࢖͑Δ ‣ Go ޲͚ͷ gRPC Ecosystem middleware ͕ଟ͍ ‣ ͲͪΒ΋੩తܕ෇͚ ‣ Go Ͱαʔό͕ॻ͚Δتͼ

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gRPC

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gRPC Demerits of gRPC ‣ REST ʹൺ΂ͯखಈͷςετ͕໘౗ ‣ ͪΐͬͱͨ࣌͠ʹ curl ͰςετͰ͖ͳ͍

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gRPC Demerits of gRPC ‣ REST ʹൺ΂ͯखಈͷςετ͕໘౗ ‣ ͪΐͬͱͨ࣌͠ʹ curl ͰςετͰ͖ͳ͍ ‣ grpc-ecosystem/polyglot ‣ ൚༻త͗ͯ͢࢖͍ͮΒ͍ ‣ Java ͳͷͰ JVM ͷىಈʹ͕͔͔࣌ؒΔ

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Let’s make it myself

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lycoris0731/evans

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lycoris0731/evans ʊਓਓਓਓਓਓʊ ʼɹ։ൃ్தɹʻ ʉ:?:?:?:?:ʉ

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Evans Overview of Evans ‣ Go ੡ͷ Universal gRPC Client ‣ Interactive (REPL) Ϟʔυ ‣ ର࿩తʹ message Λೖྗ ‣ ಈతͳิ׬ػೳ ‣ Non-interactive (CLI) Ϟʔυ ‣ UNIX ఩ֶʹଇΔ

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Evans Mechanism ‣ proto ϑΝΠϧΛಡΈࠐΈ ‣ Services / Methods / Messages Λऔಘ ‣ Message ͷϑΟʔϧυΛऔಘ ‣ ֤ϑΟʔϧυΛೖྗͤ͞Δ ‣ DynamicMessage Λར༻ͯ͠ Message Λ૊ΈཱͯΔ ‣ Remote procedure call

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Evans Mechanism ‣ go-protobuf ʹ͸ DynamicMessage ͕ͳ͍ ‣ Go Ͱ͍͏ reﬂect ‣ jhump/protoreﬂect Λར༻

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demo

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CLI References ‣ GoݴޠͰςετ͠΍͍͢ίϚϯυϥΠϯπʔϧΛͭ͘Δ (http://deeeet.com/writing/2014/12/18/golang-cli-test/) ‣ GoݴޠʹΑΔCLIπʔϧ։ൃͱUNIX఩ֶʹ͍ͭͯ (http://blog.yuuk.io/entry/go-cli-unix) ‣ UNIX ͱ͍͏ߟ͑ํ —ͦͷઃܭࢥ૝ͱ఩ֶ