Cocoa - reporting custom errors

SDKs
1

Is there a way in the Cocoa SDK to report custom errors which didn’t reach the main exception handler - e.g. if a service or API I use returns an NSError with some failure codes and messages, or I catch a Swift Error object in a do/try/catch block? Is client.send(event:) meant for such use cases? If I pass the NSError info there and call snapshotStacktrace, will this be added as an entry on my “Issues” list on sentry.io just like if it was a fatal exception?

2

Yes, of course, I would take this as guidance

https://docs.sentry.io/clients/cocoa/advanced/#adding-stacktrace-to-message

you can set every property on the event.
You could also create an event without the snapshotStacktrace method depending on your needs.

3

Ok, I’ve tried it now - I’m getting a report, but the stack trace isn’t being sent:

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Screen Shot 2017-09-01 at 23.22.49.png2362×942 125 KB

Here’s my code:

func applicationDidFinishLaunching(_ aNotification: Notification) {
    // Create a Sentry client and start crash handler
    do {
        Client.shared = try Client(dsn: "...")
        try Client.shared?.startCrashHandler()
    } catch let error {
        print("\(error)")
        // Wrong DSN or KSCrash not installed
    }

    Client.shared?.snapshotStacktrace {
        let event = Event(level: .warning)
        event.message = "API call failed: incorrect image size"
        event.environment = "debug"

        Client.shared?.appendStacktrace(to: event)
        Client.shared?.send(event: event)
    }
}

Sample project: https://www.dropbox.com/s/ettp29nk4xas3ie/SentryEventTest.zip?dl=0

The effect is the same when I log the error from some other place, e.g. after pressing a button, and in an iOS app.

4

Oh, @mackuba that must be a bug, I will look into this now.

5

I’ve released 3.7.1 which fixes this error.

1 Like
6

Wow, you guys are unbelievable :slight_smile: Just tested 3.7.1, looks like it’s working :+1:

1 Like
7

Hello, I have tried:

    SentryEvent* event = [[SentryEvent alloc] initWithLevel:kSentrySeverityFatal];
    [event setMessage:[exception reason]];
    [SentryClient.sharedClient appendStacktraceToEvent:event];
    [SentryClient.sharedClient sendEvent:event withCompletionHandler:nil];

but unfortunately there is no stack trace on the web UI.