Skip to main content

Python JSON schema validator with better error message

Project description

kanpai is a library for validating Python data structures, mainly those coverted from JSON. e.g. JSON received from api request, obtained from config file etc.

Example

Here is a quick example

import kanpai as Kanpai

schema = Kanpai.Object({
        'first_name': (Kanpai.String(error='User first name must be string.')
                       .trim()
                       .required(error='Please provide user first name.')
                       .max(256, error='Maximum allowed length is 256')),

        'last_name': (Kanpai.String(error='User last name must be a String')
                      .trim()
                      .required(error='Please provide user last name.')),

        'age'      : (Kanpai.Number(error='Age must be a number.')
                      .max(35,'Maximum allowed age is 35')
                      .min(18,'Age must be minimum 18'))

    })

validation_result = schema.validate({
  'first_name':'Chandrakanta',
  'age': 15
})

assert validation_result == {
  'success': False,
  'error': {
    'last_name': 'Please provide user last name.',
    'age': 'Age must be minimum 18'
  },
  'data': {
     'first_name':'Chandrakanta',
     'age': 15
  }
}

schema.validate return a dictionary obejct containing

{
 'success':'Whether validation is success or not',
 'error':'Validation error',
 'data':'Incase of error data provided for validation , in case success validated data'
}

Installation

Use pip

pip install kanpai

Test

pytest # to run tests
pytest --cov-report=html  --cov-branch --cov=kanpai # to generate coverage report

Project details


Download files

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

Files for kanpai, version 0.1.11
Filename, size File type Python version Upload date Hashes
Filename, size kanpai-0.1.11-py3-none-any.whl (7.8 kB) File type Wheel Python version py3 Upload date Hashes View hashes
Filename, size kanpai-0.1.11.tar.gz (4.4 kB) File type Source Python version None Upload date Hashes View hashes

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