vertx / io.vertx.reactivex.ext.web.api.validation / HTTPRequestValidationHandler / addQueryParamWithPattern

# addQueryParamWithPattern

`open fun addQueryParamWithPattern(parameterName: String, pattern: String, required: Boolean): HTTPRequestValidationHandler`

Add a query parameter with a custom pattern

### Parameters

`parameterName` - expected name of parameter inside the query

`pattern` - regular expression for validation

`required` - true if parameter is required

Return
this handler