Array

Schema template

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JSON Schema

{
  "type": "array",
  "minItems": 2
}

Valid example JSON

[
  "alpha",
  "beta"
]

Invalid example JSON

[
  "alpha"
]

Fields

FieldTypeRequiredDescription
minItemsintegerYesThe inclusive minimum array length. The value must be zero or greater.

How to use this schema

Use minItems for required selections, tag lists, uploaded files, coordinates, and any array where an empty list is not useful.

Version support and combinations

This keyword or pattern is commonly supported across modern JSON Schema workflows. Check your validator for Draft-04, Draft-07, 2019-09, and 2020-12 behavior before relying on newer composition or conditional features.

Common combination: pair this reference with type, required, and properties so validation errors are specific enough for API clients and form users.

Batch validation seed

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