Firebase Realtime Database

• Firebase

• Google Cloud Platform

• https://qiita.com/1amageek/items/b350ee5ef0c9b2406583

  • Firebase Realtime Database is a cloud system that excels in availability and partition tolerance by sacrificing consistency.
  • Even though it sacrifices consistency, it still provides transactional functionality.
  • Firebase is built on top of eventual consistency.

• https://qiita.com/1amageek/items/64bf85ec2cf1613cf507

  • Accepting redundancy is necessary.
    • Structure of cross-references.
  • Differences between web and mobile nature. firebase | Mobile nature | Solution | | — | — | | Unreliable network | Realtime, AutoSync, Offline | | Limited resources | Realtime, AutoSync | | Limited display area | Realtime, AutoSync | | Fast development speed | Realtime, AutoSync, Schemaless |
  • Tips for design
    • Design models in parallel.
    • Use singular nouns for model names.
    • Set a sort-able key for models.
    • Models should have _updatedAt and _createdAt (useful for bug solving).
    • Avoid storing arrays within models.
    • Include an AccessKey in the properties of models.

• https://firebase.google.com/docs/database/ios/structure-data?authuser=0