JSON Schema to check date of YYYY-MM-DD

Question

Could someone tell me JSON Schema Validation for accepting date of YYYY-MM-DD format alone?

My sample JSON:

{"data1" : "foo", "date" :"2016-11-24"}

Answer 1

JSON Schema already have defined format for date, time, datetime, email, hostname, IP address. You can prefer this easier and recommended method rather than writing your own regex.

"date": {
  "type": "string",
  "format": "date"
}

Date and time format names are derived from RFC 3339, section 5.6 [RFC3339].

Reference: http://json-schema.org/latest/json-schema-validation.html#rfc.section.7.3

Answer 2

add regex to json schema in schema use the following.

{
   "type": "string",
   "pattern": "^\d{4}\-(0?[1-9]|1[012])\-(0?[1-9]|[12][0-9]|3[01])$"
}

Answer 3

Use built-in support for date validation:

{"type": "string", "format": "date"}