Simple schema validator

A dead-simple utility that validates if object has a certain structure. Used in some of our projects.

pip install simple_schema_validator

An example:

Lets say we have an API that returns the following data:

{
  "user": 1,
  "profile": {
    "email": "some@user.com",
    "name": "Some User",
    "age": 20
  },
  "tokens": {
    "jwt": "...",
    "refresh": "...",
    "firebase": "...",
  }
}

And we are writing a simple integration test, that wants to assure the response has a certain structure.

Then we can use the schema validator like so:

from simple_schema_validator import schema_validator

data = get_data_from_api()

schema = {
  'user': Any,
  'profile': {
    'email': Any,
    'name': Any,
    'age': Any
  },
  'tokens': {
    'jwt': Any,
    'refresh': Any,
    'firebase': Any
  }
}

valid, missing_keys, additional_keys = schema_validator(schema, data)

assert valid, f'Response not valid, missing: {missing_keys}, additional: {additional_keys}'

• missing_keys are those keys that are required in the schema, but not found in data.
• additional_keys are those keys present in data, but not required by the schema.
• Nested keys are represented with "dot" notation - profile.email, tokens.jwt, etc.