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Minha.cc business logic - Firebase Functions

Overall project structure:

/ repositories
|-- cart.ts: responsible for cart model on firestore database
|-- transaction.ts: responsible for transaction model on firestore database
|-- transactionType.ts: responsible for transaction type model on firestore database
/ services
|-- transaction.ts: has two public methods that should be called by app clients:
     createEmpty: that will create an empty transaction;
     save: that will persist the transaction on database, also will orchestrate other business rules
/ index.ts: will expose all callable endpoints

Endpoints:

  • createUser:
    • creates the user on Firebase Auth;
    • creates account on Firestore database;
    • copies global transaction types to the user.
  • createEmptyTransaction: persists an empty transaction on Firestore each time that user clicks on +;
  • saveTransaction:
    • persist the updated transaction on Firestore;
    • updates the user cart.
  • removeTransaction:
    • remove the transaction from Firestore;
    • updates the user cart.

Environment:

  • Firebase Functions
  • Firebase Firestore

Deploy:

firebase deploy --only functions