c

com.twitter.finatra.http.exceptions

UnsupportedMethodException

class UnsupportedMethodException extends Exception with NoStackTrace

Used to denote that an incoming request HTTP method (verb) is not supported by a matched route (that is a route exists which matches the incoming request URI but is not defined over the incoming request method).

This exception is handled by the framework but is public to allow users to customize their server behavior via an installed ExceptionMapper over this exception type, if desired. Note, that this exception occurs **before** routing and thus any user-defined ExceptionMapper should be added to an ExceptionManager installed on an com.twitter.finatra.http.filters.ExceptionMappingFilter that is installed with beforeRouting = true.

class UnsupportedMethodExceptionMapper
  extends ExceptionMapper[UnsupportedMethodException] {
  def toResponse(request: Request, throwable: UnsupportedMethodException): Response  = ???
}

...

val beforeRoutingExceptionManager: ExceptionManager =
  new ExceptionManager(injector, injector.instance[StatsReceiver])

beforeRoutingExceptionManager.add[UnsupportedMethodException]

...

override def configureHttp(router: HttpRouter) {
  router
    .filter(new ExceptionMappingFilter[Request](beforeRoutingExceptionManager), beforeRouting = true)
    .add[MyAPIController]
}

// or without a custom `ExceptionManager` (uses the default configured by the `ExceptionManagerModule`):

override def configureHttp(router: HttpRouter) {
 router
   .filter[ExceptionMappingFilter[Request]](beforeRouting = true)
   .add[MyAPIController]
   .exceptionMapper[UnsupportedMethodExceptionMapper]
 }
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