Query parameters

Query Parameters

Implementation specific query parameters MUST adhere to the same constraints as member names with the additional requirement that they MUST contain at least one non a-z character (U+0061 to U+007A). It is RECOMMENDED that a U+002D HYPHEN-MINUS, "-", U+005F LOW LINE, "_", or capital letter is used (e.g. camelCasing).

If a server encounters a query parameter that does not follow the naming conventions above, and the server does not know how to process it as a query parameter from this specification, it MAY return 400 Bad Request.

Note: This is to preserve the ability of JSON:API to make additive additions to standard query parameters without conflicting with existing implementations.