المخرجات المنظمة والتحقق

import json
def reject_constant(value):
    raise ValueError("nonstandard JSON constant")
def validate(text):
    try:
        value = json.loads(text, parse_constant=reject_constant)
    except ValueError:
        return "invalid_json"
    if not isinstance(value, dict) or set(value) != {"count"} or type(value["count"]) is not int:
        return "schema_error"
    if not 0 <= value["count"] <= 3:
        return "domain_error"
    return "accepted"
for candidate in ['{"count": 2}', '{"count": true}', '{"count": 5}', "count=2"]:
    print(validate(candidate))

accepted
schema_error
domain_error
invalid_json

يقبل العدد الدقيق ضمن الحد فقط، والمحقق لعقد ضيق لا قياس جودة نموذج.

{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","required":["answer","source_ids"],"properties":{"answer":{"type":"string","maxLength":200},"source_ids":{"type":"array","maxItems":5,"uniqueItems":true,"items":{"type":"string"}}},"additionalProperties":false}

يقيد الشكل والحجم لا وجود المصدر وسنده، وليس API مزود ولا ينفذ بمحرك أونموذج.