fiboa Schema

As fiboa is targeting multiple encodings, there's no single solution for validation. We must define our own validation vocabulary, based on the fiboa Schema data types. Nevertheless, fiboa Schema can be translated into JSON Schema.

• Schema identifier: https://fiboa.github.io/schema/v0.2.0/schema.json
• Metaschema (as JSON Schema)

Vocabulary

The following keywords are generally supported:

• type: The fiboa data types as a string, required.
• deprecated: Indicates whether a schema is deprecated.
• default: Indicates the default value of a schema.
• description: Describes the schema.

At the top-level, you can also indicate the schema language and version:

• $schema: The schema identifier, see above.

Additionally, the following validation vocabulary per data type is defined by JSON Schema.

In principle any keywords available in JSON Schema 2020-12 can be used, but it is likely unsupported by the fiboa tooling.

String data type

• format (values: email, idn-email, iri, uri, uuid)
• pattern
• minLength
• maxLength
• enum

Numerical data type

• minimum
• maximum
• exclusiveMinimum
• exclusiveMaximum
• enum (for integer data types only)

Array data type

• items (required, object only, sub-schema must be compliant to fiboa Schema)
• minItems
• maxItems
• uniqueItems
• contains (sub-schema must be compliant to fiboa Schema)

Object data type

• required
• properties (sub-schemas must be compliant to fiboa Schema)
• additionalProperties (Note: In objects additional properties are disallowed by default, i.e. the default value is false. In JSON Schema the default value is true.)
• patternProperties (Note: In objects additional properties are disallowed by default, i.e. the default value is false. In JSON Schema the default value is true.)
• minProperties
• maxProperties (>= 1)

Either properties, additionalProperties or patternProperties must be provided.

Geometry data type

• geometryTypes (not part of JSON Schema): A list of allowed geometry types. Any of: Point, MultiPoint, LineString, MultiLineString, Polygon, MultiPolygon