Can I write all policies in one json file?

[puraminy]

Can I write all policies for different resources in one json file? if yes how to use it?

[vpsinghg]

Yes, you can write them in one json file and read that file inside the method get_policy_statements.
Here is the Pseudocode for that.

import json

class YourCustomAccessPolicy(AccessPolicy):
    id = 'custom-policy'

    def get_policy_statements(self, request, view) -> List[dict]:
        statements  = open('data.json')
        return json.loads(statements)