vault backup: 2026-07-12 14:13:25

2026-07-12 14:13:25 +02:00
parent e3d32f26ee
commit 469babcffe
4 changed files with 59 additions and 26 deletions
@@ -580,6 +580,21 @@ public void getAlbumMetadata(EntitiesRequest request, StreamObserver<Albums> res
 	responseObserver.onCompleted();
 }
 ```
+
+#### If you want to return an error
+```java
+public void getTrafficData(RouteRequest request, StreamObserver<TrafficResponse> responseObserver) {
+	var trafficModel = db.getTrafficModel(request);
+	var response = trafficModel.query(request);
+	if(response.isPresent()) {
+		responseObserver.onNext(response.get());
+		responseObserver.onCompleted();
+	} else {
+		// Just pass an exception with the onError method
+		responseObserver.onError(new Exception("No data available."));
+	}
+}
+```
 ## Client Side

 #### Setup