MT#57227 API: fix query to check if entity exists

* provide_scenario.sh: continue even if the domain is not there
  when deleting

It seems that API behavior has changed

Change-Id: I6373eba6903491b39623329e29128de059f0b569
(cherry picked from commit c3db5b2cb5)

bin/provide_scenario.sh

@@ -130,7 +130,7 @@ delete_voip() {
     "${BIN_DIR}/create_registrations.pl" -delete "${SCEN_CHECK_DIR}/registration.yml"
   fi
 
-  ngcp-delete-domain "$1" >/dev/null 2>&1
+  ngcp-delete-domain "$1" >/dev/null 2>&1 || echo "$(date) - can't delete domain $1"
 
   if [ -f "${SCEN_CHECK_DIR}/peer.yml" ]; then
     echo "$(date) - Deleting peers"

lib/Sipwise/API.pm

@@ -283,6 +283,10 @@ sub _post_content {
 
 sub _exists {
 	my ($self, $data, $urldata, $collection_id) = @_;
+	# remove empty values
+	foreach (keys %{$data}) {
+		delete $data->{$_} unless $data->{$_};
+	}
 	my $collection = $self->_get_content($data, $urldata);
 
 	if (defined $collection && $collection->{total_count} == 1) {