open fun addHeaderParamWithCustomTypeValidator(headerName: String, validator: ParameterTypeValidator, required: Boolean, allowEmptyValue: Boolean): HTTPRequestValidationHandler
Add a header parameter with a custom type validator. For more informations about how to construct built-in or custom type validator, check out io.vertx.rxjava.ext.web.api.validation.ParameterTypeValidator
headerName - expected header namery
required - true if parameter is required
allowEmptyValue - true if parameter allowEmptyValue. For more informations about allowEmptyValue behaviour: io.vertx.rxjava.ext.web.api.validation.ParameterValidationRule#allowEmptyValue
Return
this handler