@paul-1 said in Webhook Errordrift hunters:

Hello,

I've had working webhooks for sometime and recently added the ability in my application to modify the user registration which is sending a user registration update. I can see on my side that I receive and process the webhook in a few seconds using the C# code below. Also see below for the content of the Webhook log in FusionAuth.

Other random note since I updated to 1.55.1 I don't seem to be able to test webhooks, while developing my handler the test feature worked fine. If I cut and paste the json from the log and paste into the test my webhook app throws exceptions on trying to parse the tenantID portion, regardless of what webhook type I test. I've had a few moving parts so this issue might be on me, but I can't put a finger on it.

Any ideas on what might be going wrong here?

Thanks,
-Paul

webhook code:
using (StreamReader reader = new StreamReader(context.Request.Body, Encoding.UTF8))
{
try
{
string jsonString = await reader.ReadToEndAsync();
using (JsonDocument document = JsonDocument.Parse(jsonString))
//lots of code
context.Response.StatusCode = 200;
Log.Information("FusionAuth Success");
return jsonString;
}

Webhook log info below:

Webhook [http://xxxxxxxx:8080/webapi/fusionauth] returned response code [-1] when sending [UserRegistrationUpdate] event with Id [xxxxxxxxxxxxxxxxxxxx].

Exception:
java.net.SocketTimeoutException: Read timed out
at java.base/sun.nio.ch.NioSocketImpl.timedRead(NioSocketImpl.java:278)
at java.base/sun.nio.ch.NioSocketImpl.implRead(NioSocketImpl.java:304)
at java.base/sun.nio.ch.NioSocketImpl.read(NioSocketImpl.java:346)
at java.base/sun.nio.ch.NioSocketImpl$1.read(NioSocketImpl.java:796)
at java.base/java.net.Socket$SocketInputStream.read(Socket.java:1099)
at java.base/java.io.BufferedInputStream.fill(BufferedInputStream.java:291)
at java.base/java.io.BufferedInputStream.read1(BufferedInputStream.java:347)
at java.base/java.io.BufferedInputStream.implRead(BufferedInputStream.java:420)
at java.base/java.io.BufferedInputStream.read(BufferedInputStream.java:399)
at java.base/sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:827)
at java.base/sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:759)
at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1690)
at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1599)
at java.base/java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:531)
at com.inversoft.rest.RESTClient.go(RESTClient.java:403)
at io.fusionauth.api.service.event.WebhookEventSender.send(WebhookEventSender.java:114)
at io.fusionauth.api.service.event.DefaultEventExecutorService$SenderTask.call(DefaultEventExecutorService.java:102)
at io.fusionauth.api.service.event.DefaultEventExecutorService$SenderTask.call(DefaultEventExecutorService.java:90)
at com.codahale.metrics.InstrumentedExecutorService$InstrumentedCallable.call(InstrumentedExecutorService.java:197)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
at java.base/java.lang.Thread.run(Thread.java:1583)
Your webhook is timing out. Try:

1. Increase FusionAuth timeout in webhook settings.
2. Ensure your webhook responds quickly (log timestamps).
3. Test manually with Postman/curl to check response.
4. Fix tenantId parsing in test mode.
5. Check firewall/network issues if self-hosted.

Let me know if you need more help!