Nested level validation error wrong key, and if then else problem

[esakarya]

I am try to validate product data json with Amazon Product Type Definitions schema. but I have two problems.

First One: This is part of footwear_size property, there is 3 attribute are required. size, size_class, size_system.

I check the amazon documents they says ve ara use 2019-09 schema then i use Draft201909Validator for validating. ( also i try another ones.)
First Problem is ValidationError return only base attribute 3 time footwear_size, i cant see size, size_class, size_system attributes.

Second Is: schema says if size_system == eu_footwear_size_system then required age_group. But age_group not appear required errors.
Here is product data json part.

Here is schema if then part.

and i am attaching full schema.

schema.json

Any one can help me ?

[Muguett-DBY]

I tested the attached schema.json with the value in your screenshot, using jsonschema 4.26.0. The full schema does report the missing age_group:

import json
from jsonschema import Draft201909Validator

with open("schema.json", encoding="utf-8") as f:
    schema = json.load(f)

product = {
    "footwear_size": [{
        "size": "one_size",
        "size_class": "numeric",
        "size_system": "eu_footwear_size_system",
    }]
}

for error in Draft201909Validator(schema).iter_errors(product):
    if list(error.absolute_path)[:1] == ["footwear_size"]:
        print(f"{error.json_path}: {error.message}")

Output for that field:

$.footwear_size[0]: 'age_group' is a required property
$.footwear_size[0]: 'width' is a required property

The age_group condition is under the root allOf[43]. If you're validating only schema["properties"]["footwear_size"], that rule is left out. Pass the full schema and product to the validator, then filter the errors for display as above.

For your first question, a required error points to the object that should contain the missing property. With {"footwear_size": [{}]}, the three missing-property errors all have path footwear_size[0], while their messages identify size, size_class, and size_system. Display both the full path and message; taking just the first path element loses the array index. The error attributes include absolute_schema_path too, which shows which rule failed.

This checks the standard 2019-09 keywords. Amazon's extra validation keywords, such as minUniqueItems, need additional support.