This project is now deprecated and has been replaced by Odin.

JSRN - JavaScript Resource Notation for Python

A JSON based notation for resources that can be easily converted into object graphs.

Highlights

• Class based declarative style
• Support for all JSON primitive types (including JavaScript Date)
• Fields for building composite resources
• Field and Resource level validation
• Easy extension to support custom fields
• Python 2.7+ and Python 3.3+ supported

Quick links

• Documentation
• Project home
• Issue tracker

Upcoming features

In development

• Customisable generation of documentation of resources (for integration into Sphinx)
• Complete documentation (around 70-80% complete for current features)

Planning

• Integration with other libraries (ie Django Models/Forms)

Requires

• six

Optional

• jinja2 >= 2.7 - For documentation generation
• simplejson - Performance improvements

Example

With definition:

import jsrn

class Author(jsrn.Resource):
    name = jsrn.StringField()

class Publisher(jsrn.Resource):
    name = jsrn.StringField()

class Book(jsrn.Resource):
    title = jsrn.StringField()
    authors = jsrn.ArrayOf(Author)
    publisher = jsrn.ObjectAs(Publisher)
    genre = jsrn.StringField()
    num_pages = jsrn.IntegerField()

>>> b = Book(
        title="Consider Phlebas",
        genre="Space Opera",
        publisher=Publisher(name="Macmillan"),
        num_pages=471
    )
>>> b.authors.append(Author(name="Iain M. Banks"))
>>> jsrn.dumps(b, pretty_print=True)
{
    "$": "Book",
    "authors": [
        {
            "$": "Author",
            "name": "Iain M. Banks"
        }
    ],
    "genre": "Space Opera",
    "num_pages": 471,
    "publisher": {
        "$": "Publisher",
        "name": "Macmillan"
    },
    "title": "Consider Phlebas"
}