Trouble understanding the task of Django and Django rest framework?

Question

Here I have trouble understanding the above question. I have a task given as above. It says I have to make an api (get api) in Django which contains the above four fields id, name, latitude and longitude. It is simple to make a get api, if I can save the data to the database from Django-admin. But here, I suppose it says to use google map apis. Ok, somehow I can get the data from the google apis ( I am not so sure which python package is best for this), but how to save that data to the db, and later show it while calling get api??

Answer 1

Introduce an interface:

interface Service {
  void execute();
}

class Service1 implements Service { ... }
class Service2 implements Service { ... }

List<Service> serviceList = ...

for (Service service: serviceList) {
  service.execute();
}

Answer 2

Firstly, ArrayList<T> only can accept the declared type T, so you cannot add objects of a different type, say K into the same ArrayList.

Solution 1
A solution for your need could be to declare ArrayList<Object> list and then add the two services.

Solution 2
Now, because you want a common execute method, it would be natural for your Service1 and Service2 classes to implement some interface, say Service to achieve a unique execute method implementation for each class. And you can declare your ArrayList as ArrayList<Service> list