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examples: Error information is not in the server response 

Or rather, server response is ambiguous and this usage is not generally
what we mean when we say it. The example shows how to get an error for
any failed RPC, not just those coming from a failing server.

The existing comment caused confusion at
https://stackoverflow.com/a/78104828
This commit is contained in:
Eric Anderson 2024-03-05 08:21:01 -08:00
parent 867e469404
commit 6b3526d200
1 changed files with 3 additions and 1 deletions
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4
examples/src/main/java/io/grpc/examples/errorhandling/ErrorHandlingClient.java
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@ -45,7 +45,7 @@ import java.util.concurrent.TimeUnit;
import javax.annotation.Nullable;
/**
* Shows how to extract error information from a server response.
* Shows how to extract error information from a failed RPC.
*/
public class ErrorHandlingClient {
public static void main(String [] args) throws Exception {
@ -60,6 +60,8 @@ public class ErrorHandlingClient {
.addService(new GreeterGrpc.GreeterImplBase() {
@Override
public void sayHello(HelloRequest request, StreamObserver<HelloReply> responseObserver) {
// The server will always fail, and we'll see this failure on client-side. The exception is
// not sent to the client, only the status code (i.e., INTERNAL) and description.
responseObserver.onError(Status.INTERNAL
.withDescription("Eggplant Xerxes Crybaby Overbite Narwhal").asRuntimeException());
}