valcheck

An open-source, lightweight, highly performant, and predictable library for quick data validation.

Installation

pip install valcheck

Usage

• Refer to the examples/ folder, based on the valcheck version you are using.

Performance benchmarks

• On comparison of the performance of Django Rest Framework's (version 3.14.0) serializer with Valcheck's validator, we found that Valcheck (version 1.9) is ~3.8 times faster for cases where the data is valid, and ~2.7 times faster for cases where the data is invalid.
• These numbers are averaged over 25,000 iterations.

from rest_framework import serializers
from valcheck import fields, models, validators

DATE_FORMAT = "%Y-%m-%d"
GENDER_CHOICES = ("Female", "Male")


class PersonDrf(serializers.Serializer):
    name = serializers.CharField()
    age = serializers.IntegerField()
    gender = serializers.ChoiceField(choices=GENDER_CHOICES)
    dob = serializers.DateField(format=DATE_FORMAT)


class PersonValcheck(validators.Validator):
    name = fields.StringField()
    age = fields.IntegerField()
    gender = fields.ChoiceField(choices=GENDER_CHOICES)
    dob = fields.DateStringField(format_=DATE_FORMAT)