gRPC

1. gRPC @MoyuruAizawa
2. Ѫᖒ
   ๖ (Moyuru Aizawa) MoyuruAizawa Contract Developer Pairs Div. Eureka, Inc. FRESH! Div. CyberAgent, Inc.
4. ‣ Live Streaming ‣ Upcoming ‣ Live ‣ Pause ‣ … FRESH!
5. FRESH!
6. Polling
7. Polling Client Server Live Pause
8. Polling Client Server Live Pause
9. Polling Client Server Live Pause
10. Polling Client Server Live Pause
11. Polling Client Server Live Pause
12. Polling Client Server Live Pause
13. Polling Client Server Live Pause
14. Polling Client Server Live Pause
15. Polling Client Server Live Pause ແବ!
16. Polling Client Server Live Pause ஗͍!!
17. gRPC
18. ‣ Google ‣ Remote Procedure Call ‣ HTTP/2 ‣ ѹॖϔομʔ ‣ αʔόʔϓογϡ ‣ Protocol Buffers ‣ ετϦʔϜ ‣ … gRPC
19. gRPC
20. gRPC Channel(OkHttp2) Binary data
21. gRPC Serialize/Deserialize
 … FooServiceStub
22. Plasma
23. ‣ FRESH!։ൃ ‣ gRPC Stream, Server Sent EventΛ༻͍ͨ൚༻తͳServer Pushϛυϧ ΢ΣΞ ‣ ΫϥΠΞϯτ͸Plasmaʹରͯ͠subscribe͍ͨ͠EventΛૹΔ ‣ Πϕϯτൃੜ࣌ʹPlasma͕ΫϥΠΞϯτʹରͯ͠৘ใΛૹΔ ‣ https://blog.stormcat.io/post/entry/openfresh-plasma/ Plasma
24. gRPC Client Plasma
25. gRPC Client Plasma Connect to server
26. gRPC Client Plasma Connect to server subscribe Event1
27. gRPC Client Plasma Connect to server subscribe Event1 Event1
28. gRPC Client Plasma Connect to server subscribe Event1 Event1
29. gRPC Client Plasma Connect to server subscribe Event1 Event1 subscribe Event2
30. gRPC Client Plasma Connect to server subscribe Event1 Event1 subscribe Event2 Event2
31. gRPC Client Plasma Connect to server subscribe Event1 Event1 subscribe Event2 Event2
32. gRPC Client Plasma Connect to server subscribe Event1 Event1 subscribe Event2 Event1 Event2
33. gRPC Client Plasma Connect to server subscribe Event1 Event1 subscribe Event2 Event1 Event2
34. gRPC Client Plasma Connect to server subscribe Event1 Event1 subscribe Event2 Event1 Event2 ແବͳϦΫΤετͷ࡟ݮ ϦΞϧλΠϜ
35. TIPS
36. ‣ Protobuf ‣ ProtoϑΝΠϧͷσʔλఆٛΛݩʹSerialize/Deserializeίʔυͷੜ ੒ɺσʔλΫϥεͷੜ੒ ‣ ProtoϑΝΠϧͷαʔϏεఆٛΛݩʹStubΫϥεͷੜ੒ ‣ Channel ‣ αʔόʔͱͷίωΫγϣϯ ‣ Stub ‣ αʔϏε gRPC
37. Kotlin and Protobuf
38. Kotlin and Protobuf
39. apply plugin: 'com.android.application' apply plugin: 'kotlin-android' apply plugin: 'com.google.protobuf' apply plugin: 'com.android.application' apply plugin: 'com.google.protobuf' apply plugin: 'kotlin-android' Kotlin and Protobuf
40. Channel and Lifecycle
41. ManagedChannel and Lifecycle onCreate
42. ManagedChannel and Lifecycle onCreate new ManagedChannel()
43. ManagedChannel and Lifecycle onCreate new ManagedChannel() FooServiceStubGrpc.newStub(channel)
44. ManagedChannel and Lifecycle onCreate new ManagedChannel() FooServiceStubGrpc.newStub(channel) stub.bar()
45. ManagedChannel and Lifecycle onCreate onDestroy channel.shutdownNow() new ManagedChannel() FooServiceStubGrpc.newStub(channel) stub.bar()
46. ManagedChannel and Lifecycle onCreate onDestroy channel.shutdownNow() the system will simply kill the activity's hosting process without calling onDestroy new ManagedChannel() FooServiceStubGrpc.newStub(channel) stub.bar()
47. ManagedChannel and Lifecycle onCreate onDestroy channel.shutdownNow() new ManagedChannel() FooServiceStubGrpc.newStub(channel) stub.bar() αʔόʔʹແବͳίωΫγϣϯ͕ཷ·͍ͬͯ͘ ΞϓϦ͕όοΫάϥ΢ϯυͰ΋௨৴ͯ͠͠·͏
48. ManagedChannel and Lifecycle onCreate onDestroy channel.shutdownNow() new ManagedChannel() FooServiceStubGrpc.newStub(channel) stub.bar() onStart onStop
49. ‣ onStart-onStopͰίωΫγϣϯΛுΔ ‣ ίωΫγϣϯ͕੾ΕͨStub͸࢖͑ͳ͘ͳΔͷͰɺStub΋ຖ౓ੜ੒͠௚ ͢ ‣ FRESH!Ͱ͸gRPCͰ௨৴͢Δ༻ͷΫϥεΛ࡞੒ɻαʔόʔͱͷ઀ଓ ͱɺϦΫΤετΛ·ͱΊͨɻ ManagedChannel and Lifecycle
50. Reconnection
51. ‣ Channel: αʔόʔͱͷίωΫγϣϯ ‣ ManagedChannel:αʔόʔ͕μ΢ϯ͢Δɺ୺຤͕ΦϑϥΠϯʹͳΔͳ ͲʹΑͬͯίωΫγϣϯ͕੾Εͯ΋ɺ࠶઀ଓΛߦͬͯ͘ΕΔɻ Reconnection
52. Reconnection ͍͔ͭΒManagedChannel͕ૉૣ͘ ࠶઀ଓͯ͘͠ΕΔͱࡨ͍֮ͯͨ͠?
53. ‣ ͔ͨ͠ʹɺ࠶઀ଓͯ͘͠ΕΔɻ ‣ ͔͠͠ɺ΍ͨΒ͕͔͔࣌ؒΔɻ(5ඵͱ͔10ඵͱ͔) ‣ ࠶઀ଓ·ͰผͷHTTP/1.1ͷAPIΛୟ͘ Plasma͕RxͰ͍͏PublishSubjectͷΑ͏ͳϛυϧ΢ΣΞͳͷͰɺ઀ଓ͕੾Ε͍ͯΔؒʹى͖ͨΠϕϯτΛ औΕͳ͍ͨΊ Reconnection
54. ‣ ͔ͨ͠ʹɺ࠶઀ଓͯ͘͠ΕΔɻ ‣ ͔͠͠ɺ΍ͨΒ͕͔͔࣌ؒΔɻ(5ඵͱ͔10ඵͱ͔) ‣ ࠶઀ଓ·ͰผͷHTTP/1.1ͷAPIΛୟ͘ Plasma͕RxͰ͍͏PublishSubjectͷΑ͏ͳϛυϧ΢ΣΞͳͷͰɺ઀ଓ͕੾Ε͍ͯΔؒʹى͖ͨΠϕϯτΛ औΕͳ͍ͨΊ ‣ ઀ଓঢ়ଶͷมߋΛ؂ࢹ͍ͨ͠ͳ͊…. Reconnection
55. ‣ ͔ͨ͠ʹɺ࠶઀ଓͯ͘͠ΕΔɻ ‣ ͔͠͠ɺ΍ͨΒ͕͔͔࣌ؒΔɻ(5ඵͱ͔10ඵͱ͔) ‣ ࠶઀ଓ·ͰผͷHTTP/1.1ͷAPIΛୟ͘ Plasma͕RxͰ͍͏PublishSubjectͷΑ͏ͳϛυϧ΢ΣΞͳͷͰɺ઀ଓ͕੾Ε͍ͯΔؒʹى͖ͨΠϕϯτΛ औΕͳ͍ͨΊ ‣ ઀ଓঢ়ଶͷมߋΛ؂ࢹ͍ͨ͠ͳ͊…. Reconnection
56. TLS 1.2
57. OkHttpChannelBuilder .forAddress(address, port) .sslSocketFactory(sslSocketFactory) .connectionSpec( ConnectionSpec.Builder(ConnectionSpec.MODERN_TLS) .tlsVersions(TlsVersion.TLS_1_2) .build() ) .negotiationType(NegotiationType.TLS) .build() Build ManagedChannel
58. OkHttpChannelBuilder .forAddress(address, port) .sslSocketFactory(sslSocketFactory) .connectionSpec( ConnectionSpec.Builder(ConnectionSpec.MODERN_TLS) .tlsVersions(TlsVersion.TLS_1_2) .build() ) .negotiationType(NegotiationType.TLS) .build() Build ManagedChannel
59. OkHttpChannelBuilder .forAddress(address, port) .sslSocketFactory(sslSocketFactory) .connectionSpec( ConnectionSpec.Builder(ConnectionSpec.MODERN_TLS) .tlsVersions(TlsVersion.TLS_1_2) .build() ) .negotiationType(NegotiationType.TLS) .build() Build ManagedChannel Android 4.1-4.4Ͱ TLS 1.2͕ར༻Ͱ͖ͳ͍
60. class TlsSocketFactory(private val delegate: SSLSocketFactory) : SSLSocketFactory() { override fun getDefaultCipherSuites(): Array<String> = delegate.defaultCipherSuites override fun createSocket(s: Socket?, host: String?, port: Int, autoClose: Boolean): Socket = delegate.createSocket(s, host, port, autoClose).let(this::patch) override fun createSocket(host: String?, port: Int): Socket = delegate.createSocket(host, port).let(this::patch) override fun createSocket(host: String?, port: Int, localHost: InetAddress?, localPort: Int): Socket = delegate.createSocket(host, port, localHost, localPort).let(this::patch) override fun createSocket(host: InetAddress?, port: Int): Socket = delegate.createSocket(host, port).let(this::patch) override fun createSocket(address: InetAddress?, port: Int, localAddress: InetAddress?, localPort: Int): Socket = delegate.createSocket(address, port, localAddress, localPort).let(this::patch) override fun getSupportedCipherSuites(): Array<String> = delegate.supportedCipherSuites private fun patch(s: Socket): Socket = s.apply { if (this is SSLSocket) enabledProtocols = arrayOf("TLSv1.2") } } Enable TLS 1.2 https://github.com/square/okhttp/issues/2372
61. class TlsSocketFactory(private val delegate: SSLSocketFactory) : SSLSocketFactory() { override fun getDefaultCipherSuites(): Array<String> = delegate.defaultCipherSuites override fun createSocket(s: Socket?, host: String?, port: Int, autoClose: Boolean): Socket = delegate.createSocket(s, host, port, autoClose).let(this::patch) override fun createSocket(host: String?, port: Int): Socket = delegate.createSocket(host, port).let(this::patch) override fun createSocket(host: String?, port: Int, localHost: InetAddress?, localPort: Int): Socket = delegate.createSocket(host, port, localHost, localPort).let(this::patch) override fun createSocket(host: InetAddress?, port: Int): Socket = delegate.createSocket(host, port).let(this::patch) override fun createSocket(address: InetAddress?, port: Int, localAddress: InetAddress?, localPort: Int): Socket = delegate.createSocket(address, port, localAddress, localPort).let(this::patch) override fun getSupportedCipherSuites(): Array<String> = delegate.supportedCipherSuites private fun patch(s: Socket): Socket = s.apply { if (this is SSLSocket) enabledProtocols = arrayOf("TLSv1.2") } } Enable TLS 1.2 https://github.com/square/okhttp/issues/2372
62. class TlsSocketFactory(private val delegate: SSLSocketFactory) : SSLSocketFactory() { override fun getDefaultCipherSuites(): Array<String> = delegate.defaultCipherSuites override fun createSocket(s: Socket?, host: String?, port: Int, autoClose: Boolean): Socket = delegate.createSocket(s, host, port, autoClose).let(this::patch) override fun createSocket(host: String?, port: Int): Socket = delegate.createSocket(host, port).let(this::patch) override fun createSocket(host: String?, port: Int, localHost: InetAddress?, localPort: Int): Socket = delegate.createSocket(host, port, localHost, localPort).let(this::patch) override fun createSocket(host: InetAddress?, port: Int): Socket = delegate.createSocket(host, port).let(this::patch) override fun createSocket(address: InetAddress?, port: Int, localAddress: InetAddress?, localPort: Int): Socket = delegate.createSocket(address, port, localAddress, localPort).let(this::patch) override fun getSupportedCipherSuites(): Array<String> = delegate.supportedCipherSuites private fun patch(s: Socket): Socket = s.apply { if (this is SSLSocket) enabledProtocols = arrayOf("TLSv1.2") } } Enable TLS 1.2 SSLSocketFactoryΛϥοϓͯ͠TLS 1.2Λ༗ޮʹ͢Δ https://github.com/square/okhttp/issues/2372
64. FRESH!
65. FRESH!
66. ‣ ଈ࠲ʹαʔόʔ͔Β৘ใ͕ඈΜͰ͖ͯ࠷ߴ ‣ ίωΫγϣϯʹؾΛ഑Δඞཁ͕͋Δ ‣ HTTP/1.1ʹ͸ແ͔ͬͨ֓೦ͳͷͰ׳ΕΔ·Ͱେม ‣ AndroidͰϓϩμΫγϣϯʹಋೖͨ͠࿩͕গͳ͍ ‣ ࢼߦࡨޡͷ࿈ଓ Conclusion
67. Thank you