example_typedjson.py

#!/usr/bin/env python3

from typing import NamedTuple

import typedjson


class NameJson(NamedTuple):
    first: str
    last: str


class UserJson(NamedTuple):
    id: str
    age: int
    name: NameJson


json = {'id': 'test-user', 'age': 20, 'name': {'first': 'foo', 'last': 'bar'}}
invalid_json = {'age': 20, 'name': {'first': 'foo', 'last': 'bar'}}

print(typedjson.decode(UserJson, json)) # UserJson(id='test-user', age=20, name=NameJson(first='foo', last='bar'))
print(typedjson.decode(UserJson, invalid_json)) # DecodingError(path=('id',))