json schema date-time does not check correctly

json datetime jsonschema
IHeartAndroid picture IHeartAndroid · Nov 28, 2013 · Viewed 73.1k times · Source

I have a JSON and a JSON-schema

JSON:

{
"aaa": "4000-02-01 00:00:00"
}

JSON-schema:

{
    "$schema": "http://json-schema.org/draft-04/schema",
    "type": "object",
    "properties": {

        "aaa": {
            "type": "string",
            "format": "date-time"
        }


    }, "required": ["aaa"]
}

The JSON gets validated by the JSON-schema. However if I change the field aaa to "bla" the schema does not notice that it is not a date-time any longer.

Did I miss anything in the schema?

Answer

Beau Barker picture Beau Barker · Sep 12, 2014

For Python's jsonschema library, specify the format checker when calling validate:

jsonschema.validate(data, schema, format_checker=jsonschema.FormatChecker())

To validate a date-time format, the strict-rfc3339 package should be installed.

See Validating Formats.

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