Golang in LINE MUSIC TW

by Wei Wan @Golang Taipei Gathering #54 https://www.meetup.com/golang-taipei-meetup/events/272926722/

Transcript

1. Golang in LINE MUSIC TW Wei 2020.9.23
2. Who am I • Name: wei • Company: LINE Taiwan • Project: LINE MUSIC • School: NTUT • Interest: 看天之驕女
3. Agenda • What is LINE MUSIC • System Architecture • APIGW Server • How to build RESTful API Server • How to build GraphQL Server • How to connect Other HTTP API • Content Server • How to build gRPC Server • How to connect MySQL • How to connect Redis • How to connect MongoDB • Event Log Server • How to connect Kafka • How to connect Elasticsearch • Content Sync Server • How to build WebSocket Server • Project Structure • Dependency Injection • Config Manage • Testing tools • Develop tools
4. What is LINE MUSIC • LINE APP Profile BGM / RT / RBT • Share music to LINE APP • AIDJ • Recommendation
6. APIGW
8. How to build RESTful API Server (Gin) • Links • https://gin-gonic.com/zh-tw • https://github.com/gin-gonic/gin • Feature • Routing • Bind Path • Bind request body and validation • Custom Middleware
9. Gin Routing
10. Gin Bind Path
11. Gin Bind request body and validation
12. Gin Custom Middleware
13. How to build GraphQL Server (gqlgen) • Links • https://gqlgen.com/ • https://github.com/99designs/gqlgen • Feature • CodeGen from GraphQL Schema (Model、Resolvers) • Intergration with Gin • Limit Query Complexity • APQ、Apollo Federation
14. CodeGen from GraphQL Schema (gqlgen)
15. Intergration with Gin (gqlgen)
16. Limit Query Complexity (gqlgen)
17. How to connect Other HTTP API (Resty) • Links • https://github.com/go-resty/resty • Feature • GET, POST, PUT, DELETE, HEAD, PATCH, OPTIONS • Request header, query, path param • Request body: string, []byte, struct, map, slice and io.Reader (Auto detects Content-Type) • Retry • Request and Response middlewares
18. Simple Request (Resty)
19. Request and Response middlewares (Resty)
20. Content
22. How to build gRPC Server (grpc-go) • Links • https://github.com/grpc/grpc-go • https://github.com/golang/protobuf/tree/master/protoc-gen-go • Feature • CodeGen from protobuf (Server、Client) • Health check • Retry • Interceptor
23. CodeGen from protobuf (protoc-gen-go)
24. CodeGen from protobuf (protoc-gen-go)
25. CodeGen from protobuf (protoc-gen-go)
26. CodeGen from protobuf (protoc-gen-go)
27. Health check, Retry, Interceptor (grpc-go)
28. How to connect MySQL (GORM) • Links • https://gorm.io/zh_CN • https://github.com/go-gorm/gorm • Feature • ORM • Preload • Hooks • Auto Migration
29. Link to database
30. ORM (GORM)
31. Preload (GORM)
32. Hooks (GORM)
33. Auto Migration (GORM)
34. How to connect Redis (go-redis) • Links • https://github.com/go-redis/redis • Feature • Single, Cluster • Operation • Pub / Sub
35. Single, Cluster (go-redis)
36. Operation (go-redis)
37. Pub / Sub (go-redis)
38. How to connect MongoDB (mongo-go-driver) • Links • https://github.com/mongodb/mongo-go-driver
39. How to connect MongoDB (mongo-go-driver)
40. Event Log
42. How to connect Kafka (sarama) • Links • https://github.com/Shopify/sarama • Feature • Producer • Consumer / Consumer Group
43. Producer (sarama)
44. Consumer (sarama)
45. Consumer (sarama)
46. How to connect Elasticsearch (go- elasticsearch) • Links • https://github.com/elastic/go-elasticsearch
48. How to build WebSocket Server (melody) • Links • https://github.com/olahol/melody
49. How to build WebSocket Server (melody)
50. Project Structure • https://github.com/golang-standards/project-layout
51. Dependency Injection • https://github.com/uber-go/dig • https://github.com/uber-go/fx
52. Dependency Injection (fx)
53. Dependency Injection (fx)
54. Dependency Injection (fx) …..
55. Dependency Injection (fx)
56. Config Manage • https://github.com/spf13/viper
57. Config Manage
58. Testing tools • https://github.com/stretchr/testify
59. Testing tools • https://github.com/smartystreets/goconvey
60. Testing tools
61. Develop tools • https://github.com/silenceper/gowatch • https://github.com/Shelnutt2/db2struct