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Description
Firebase Core functionalities
- Authentication : support username password an oAuth support, free for less than 100 k users.
- Storage: to store static data, like AWS s3
- Firestore: a NoSQL database , yet contains subordinate collections using nested json format
- provide built-in http interaction CRUD support
- use snapshot and collection concept
- practices about using nested collection vs create a new collection: similar to MongoDB, collection relationship and subordinary collection size
- Realtime Database: more expensive, for high latency sensitive data storage
- Security controls
About data driven
- One thing you might notice is that Firebase has a series of
**on**functions, such as**onSnapshot**,**onValue**, and so on. These functions utilize WebSockets to establish real-time communication between the frontend and the backend. - So if your data is updated by stages, and frontend side subscribes this data changes, you might need a
statusfield to indicate the data stage of changes.
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