Firebase data structure and its characteristics

It is wrong to adopt RDB for Mobile development.
Mobile development should use NoSQL efficiently. And Firebase is able to do mobile development most efficiently now.

Transcript

1. Firebase data structure and its characteristics nori Jun 2017 @1amageek Hello. #Otemachi Firebase #2 Thank you Yahoo Japan
2. About 1amageek System Device Technology LSI design engineer iOS engineer iOS engineer 2017.5 ~ 2015.10 ~ 2009.4 ~ Bio
3. Bleu Salada OSS Library Bluetooth Library Firebase Library https://github.com/1amageek AssemblyLine Multitask Library
4. Goal
5. Goal Current Project
6. Goal
7. Goal Hello! New Project
8. Firebase data structure and its characteristics
9. is NoSQL
10. UI Atomicity Migration Basically Record Scheme Relationship Durability Cloud Isolation Partition-tolerance Cache Transaction
11. ≒ RDB
12. ≒ RDB ❌
13. CAP theorem Consistency Availability Partition-tolerance Մ༻ੑ Ұ؏ੑ ෼அ଱ੑ
14. Relational database 1. Consistency 2. Availability Bank Stable Network Firebase Realtime Databaseͱ͸ͳΜͳͷ͔ʁ CAP theorem
15. Mobile
16. Mobile 1. Unstable network 2. Limited resources 3. Development speed
17. Mobile RDB X Mismatch
18. Firebase realtime database Unstable Network 1. Partition-tolerance 2. Availability CAP theorem
19. Mobile Firebase X Cool
20. DEMO
21. Feed Feed Feed Feed Sample App User Feed Feed Feed Feed Feed Photo Photo Photo Photo Photo
22. How to Design Firebase realtime database 1. Scheme less 2. Structure 3. Client side join 4. Denormalization
23. Some NoSQLs provide soft scheme functions. Mixed Nested Model Model Scheme less 1. Type safe 2. Validation
24. 1. Flat structure can flexibly respond to changes Flat Nested Model Structure 2. Nested structure can constitute simple security Model Model Model
25. Structure Room { room: { room_00: { message_00: true, message_01: true } }, message: { message_00: { text: "hollo" }, message_01: { text: "hollo" } } } { room: { room_00: { message_00: { text: "hollo" }, message_01: { text: "hollo" } } } } Flat Nested 1. Flat structure can flexibly respond to changes 2. Nested structure can constitute simple security
26. Client side join 1. Improve development speed 2. Reduce unnecessary communication
27. Client side join User Information Main Contents Reaction count
28. Client side join { id: "000000", user: { id: "user_00", name: "1amageek", thumbnailURL: "https://**.jpg" followerUserIDs: ["user_01"], followeeUserIDs: ["user_02"], }, content: { id: "content_00", text: "Hello", imageURL: "https://**.jpg" }, retweetUserIDs: ["user_01", "user_02"], commentUserIDs: ["user_01", "user_02"], likeUserIDs: ["user_01", "user_02"], }
29. Client side join { id: "000000", userID: "user_00", contentID: "content_00", retweetUserIDs: ["user_01", "user_02"], commentUserIDs: ["user_01", "user_02"], likeUserIDs: ["user_01", "user_02"], } user: { id: "user_00", name: "1amageek", thumbnailURL: "https://**.jpg" followerUserIDs: ["user_01"], followeeUserIDs: ["user_02"], } content: { id: "content_00", text: "Hello", imageURL: "https://**.jpg" }
30. Denormalization RDB Firebase Model Normalization Denormalization 1. Denormalization simplifies queries 2. Improve performance 3. Volume increases
31. Summary 1. ͏·͍ 2. ΍͍͢ 3. ͸΍͍
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34. Thank you )