Skip to main content

JSONObjects allows you to declaratively specify how to extract and convert elements from a JSON document.

Project description

jsonobjects allows you to declaratively specify how to extract and convert elements from a JSON document.

Installation

We recommend the use of virtualenv and of pip. You can then use pip install -U jsonobjects. You may also have setuptools and thus you can use easy_install -U jsonobjects. Otherwise, you can download the source from GitHub and run python setup.py install.

Dependencies

All dependencies are optional.

Usage

Example of schema to parse iTunes lookup response for software item:

import json
import requests
import jsonobjects as jo


class iTunesAppSchema(jo.Schema):
    id = jo.IntegerField('trackId')
    url = jo.Field('trackViewUrl')
    name = jo.StringField('trackName')
    currency = jo.StringField()
    price = jo.FloatField(min_value=0.0)
    rating = jo.FloatField('averageUserRating')
    reviews = jo.IntegerField('userRatingCountForCurrentVersion')
    version = jo.StringField()
    publisher_id = jo.IntegerField('artistId')
    publisher_url = jo.Field('artistViewUrl')
    publisher_name = jo.StringField('artistName')
    categories = jo.ListField('genres', child=jo.StringField())
    icon = jo.Field(
        ['artworkUrl512', 'artworkUrl60'], post_process=lambda v: {'url': v})
    screenshots = jo.ListField(
        'screenshotUrls', child=jo.Field(post_process=lambda v: {'url': v}))


parser = iTunesAppSchema('results[0]')


@parser.as_decorator
def get_app_details(app_id):
    url = 'https://itunes.apple.com/lookup?id={}'
    return requests.get(url.format(app_id)).json()

# https://itunes.apple.com/lookup?id=880047117
details = get_app_details(880047117)
print(details)

The code above produces next result:

{
  "categories": ["Games", "Puzzle", "Action"],
  "currency": "USD",
  "icon": {"url": "http://is3.mzstatic.com/image/thumb/Purple3/v4/27/f0/d9/27f0d923-e00b-5f2c-a1e9-235ed3f83d14/source/512x512bb.jpg"},
  "id": 880047117,
  "name": "Angry Birds 2",
  "price": 0.0,
  "publisher_id": 298910979,
  "publisher_name": "Rovio Entertainment Ltd",
  "publisher_url": "https://itunes.apple.com/us/developer/rovio-entertainment-ltd/id298910979?uo=4",
  "rating": 4.0,
  "reviews": 4796,
  "screenshots": [
    {"url": "http://a4.mzstatic.com/us/r30/Purple3/v4/5c/5e/54/5c5e542c-54a1-7812-12df-045aca3ebb86/screen1136x1136.jpeg"},
    {"url": "http://a1.mzstatic.com/us/r30/Purple3/v4/95/50/db/9550dbba-9cbf-d588-fac4-5ebf04614023/screen1136x1136.jpeg"},
    {"url": "http://a5.mzstatic.com/us/r30/Purple3/v4/22/ef/e7/22efe7c2-bd05-6f58-f176-92e7230853bd/screen1136x1136.jpeg"},
    {"url": "http://a2.mzstatic.com/us/r30/Purple69/v4/72/44/ba/7244ba34-6c8c-5dc5-38e4-e134a97cd0d1/screen1136x1136.jpeg"},
    {"url": "http://a5.mzstatic.com/us/r30/Purple6/v4/1b/e4/98/1be49811-f5be-cb3f-1a31-a20b5f5663ee/screen1136x1136.jpeg"}
  ],
  "url": "https://itunes.apple.com/us/app/angry-birds-2/id880047117?mt=8&uo=4",
  "version": "2.2.1"
}

See tests.py for more examples.

Tests

Getting the tests running looks like:

# Install dependencies
$ pip install -r requirement.txt
# Run the test suites
$ python tests.py

License

The MIT License (MIT)

Contributed by Maxim Kamenkov

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Filename, size & hash SHA256 hash help File type Python version Upload date
jsonobjects-1.0.3.tar.gz (13.9 kB) Copy SHA256 hash SHA256 Source None

Supported by

Elastic Elastic Search Pingdom Pingdom Monitoring Google Google BigQuery Sentry Sentry Error logging AWS AWS Cloud computing DataDog DataDog Monitoring Fastly Fastly CDN SignalFx SignalFx Supporter DigiCert DigiCert EV certificate StatusPage StatusPage Status page