Json-Model

Json-Model is simple library to create Json Models from Python Objects. Library supports field validation by Python Types and required fields.

Instalation

pip install json-model

Usage

Usage is really simple. Json-Model on this moment supports 7 basics fields:

• Integer
• String
• Float
• List
• Timestamp
• Datetime
• ForeignField

Each field has attribute:

• required - Boolean attribute in default is set to False.
• default - set default value when field is empty.

To start work with JsonModel, create Json-Model class with all fields what you need in Json object.

import datetime
import time

from json_model import fields
from json_model import libs


class Scholarship(libs.JsonModel):
    amount = fields.Float(required=True)
    currency = fields.String(default='USD')
    months = fields.List(required=True)


class Student(libs.JsonModel):
    name = fields.String(required=True)
    surname = fields.String(required=True)
    age = fields.Integer()
    day_of_birth = fields.Datetime()
    scholarship = fields.ForeignField()

    created_at = fields.Timestamp()


if __name__ == '__main__':
    scholarship = Scholarship()
    scholarship.amount = 500.00
    scholarship.months = [1, 2, 3, 4, 5, 8, 9, 10]

    student = Student()
    student.name = "Andrew"
    student.surname = "Gardner"
    student.age = 26
    student.day_of_birth = datetime.datetime.strptime('Jun 1 1999  1:33PM', '%b %d %Y %I:%M%p')

    student.scholarship = scholarship

    student.created_at = int(time.time())

    print(student.to_json())

    # Create objects by dictionary objects as parameter of JsonModel class.
    student = Student(**{
        'name': 'Andrew',
        'surname': 'Gardner',
        'age': 26,
        'day_of_birth': datetime.datetime.strptime('Jun 1 1999  1:33PM', '%b %d %Y %I:%M%p'),
        'scholarship': Scholarship(**{'amount': 500.00, 'months': [1, 2, 3, 4]}),
        'created_at': int(time.time())
        }
    )

    print(student.to_json())

Congratulation You have just created your first JsonModel implementation.