retrieving class instances from a Firebase database

I have a new group called GroupA

group A {
  value1: string;
  value2: string;

  total(): number {
    return value1 + value2;
  }
}

I want to store instances of GroupA in my database, but when I retrieve them, they are in Object format which does not allow me to call the total method.

Is there a way to specify a constructor for firebase get requests or convert Objects back to GroupA objects easily?

Answer №1

In the Firebase Database, JSON data is stored instead of JavaScript objects. One important distinction between JSON data and JavaScript objects is that JSON data cannot include any functions within them.

A convenient method to retrieve your objects is by passing the JSON into a constructor and duplicating them using a function like Object.assign().

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