マイクロサービスバックエンドAPIのためのRESTとgRPC
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1. The document discusses RESTful APIs and gRPC, comparing their characteristics and use cases. 2. RESTful APIs typically use HTTP and JSON to access resources via URLs while gRPC uses protocol buffers and HTTP/2 for efficient streaming and RPC. 3. gRPC is better suited for microservices and mobile apps due to its ability to handle streaming and performance, while REST is more widely used due to its simplicity and support in most languages.
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マイクロサービスバックエンドAPIのためのRESTとgRPC
- 2. • • RESTful API • gRPC •
- 7. > In short, the microservice architectural style is an approach to developing a single application as a suite of small services, each running in its own process and communicating with lightweight mechanisms, often an HTTP resource API. => HTTP API Microservices @Martin Fowler, @James Lewis https://martinfowler.com/articles/microservices.html
- 8. RESTful API > RESTful API Web (API) REST REST REST Web API RESTful API > URL/URI ( ) > HTTP XML HTML JSON HTTP e-Words http://e-words.jp/w/RESTful_API.html * RESTful API REST API
- 9. • Web API • URL/URI • : HTTP • : XML HTML JSON + HTTP • : :✕
- 10. ✋API
- 11. Q1. Q. API 1. URL 2. 3. HTTP Header 4.
- 12. Q2. API Q. API HTTP ? 1. POST 2. REST API PUT 3. PATCH 4.
- 13. Q3. API • Q. DB ? 1. DB 500 2. 400+ 3. 409 4.
- 14. Q4. API • Q. ? 1. 2. 3. 4.
- 15. A.
- 16. ?
- 17. • > =>
- 18. > 2 2 => ( )
- 19. RESTful • Web API => => *1 REST https://togetter.com/li/14062
- 20. • REST API • • • • API
- 21. • • Web ( ) • RESTful Web (O'Reilly) • Web API: The Good Parts(O'Reilly) • Microsoft REST API Guidelines • https://github.com/Microsoft/api-guidelines/blob/master/ Guidelines.md • Google API Design Guide • https://cloud.google.com/apis/design/
- 22. • • Google Microsoft Amazon Twitter Facebook Netflix API • Dropbox REST AWS API REST • https://medium.com/@voluntas/http-api- -7ccaca671d9d
- 24. • URL • • • • or : • • Swagger API Blueprint RAML JSON (Hyper)Scheme • • • • E2E Consumer-Driven Contracts • API …
- 26. • • • • ( …)
- 28. • REST • REST • REST • •
- 29. • • REST API * REST API
- 30. • • REST API * REST API
- 31. REST API • • • HTTP • API JSON JavaScript => API
- 32. REST API ?
- 33. Web API >Web API REST RPC SOAP > RPC : Remote Procedure Call > RPC : SDK
- 34. Web API >Web API REST RPC SOAP > RPC : Remote Procedure Call > RPC : SDK
- 35. Web API >Web API REST RPC SOAP > RPC : Remote Procedure Call > RPC : SDK gRPC ( )
- 37. RPC • Java RMI • XML-RPC • JSON-RPC • Apache Thrift • gRPC
- 38. RPC • Java RMI • XML-RPC • JSON-RPC • Apache Thrift • gRPC
- 39. gRPC • Google RPC • Google RPC OSS • Protocol Buffers *1 • • HTTP/2 • • / Streaming *1. gRPC Protocol Buffers
- 40. Protocol Buffers? • • IDL( ) • • • • IDL • •
- 41. • Google Protocol Buffers • DB BigData Protocol Buffers rebuild.fm#169 @omo https://rebuild.fm/169/
- 42. gRPC • • Google • Square • Netflix • CoreOS • Docker • Cisco • • • GRPC *1 • AbeamTV • AbeamTV Microservices *2 • • Protocol Buffers *3 *1. https://speakerdeck.com/kazegusuri/go-conference-2016-spring *2. http://www.slideshare.net/RyotaNishio/abematvmicroservices-architecture *3. http://tayama0324.github.io/slides/20161127-kbkz-tech.html#/
- 43. 1. (IDL) 2. IDL ( ) 3. 4. 5.
- 46. URL • IDL • • • repeat map enum • message stream service nest • • *1 • *2 *1. http://www.grpc.io/docs/guides/error.html *2. ex:Java) http://www.grpc.io/grpc-java/javadoc/io/grpc/Status.html
- 47. • • • •
- 48. • IDL • • protoc-gen-doc: IDL Markdown, HTML *1 • grpc-gateway: gRPC JSON *2 • polyglot: grpc CLI *3 => IDL => • *1. https://github.com/estan/protoc-gen-doc • *2. https://github.com/grpc-ecosystem/grpc-gateway • *3. https://github.com/grpc-ecosystem
- 49. • (Protocol Buffers) • IDL • • / • • 1 => IDL ?
- 50. • .proto • SSL/TLS Google API •
- 52. Other Pros • • XML JSON • • • Protocol Buffers (JSON XML ) • •
- 53. Cons • • RESTful API => REST ( AbemaTV) • JSON => grpc-gateway polyglot => • => => grpc-gateway *1 • HTTP/2 => Kubernetes *1. https://github.com/grpc/grpc-experiments/issues/159
- 54. Note • gRPC • gRPC • DDD + DIP • API( )
- 55. REST API • (IDL) => => REST => • => => • Google • … => =>
- 56. • • HTTP API • RESTful API • • • • gRPC • • •