In Swift 2.1, how do you get the NSError that was thrown?

Question

I'm initializing an AVCaptureDeviceInput. In Swift 2 rather than getting an NSError variable you catch an error with a do-try-catch sandwich. However I don't see how to get the NSError inside the catch part. The recommendation given on Apple's developer forum does not indicate how you can access the NSError.

Can someone enlighten me?

score 28 · Accepted Answer · answered Nov 17 '15 at 06:54

28

This worked for me:

 var error: NSError?

        do {
            request.HTTPBody = try NSJSONSerialization.dataWithJSONObject(jsonString, options: [])
        } catch let error1 as NSError {
            error = error1
            request.HTTPBody = nil
        }

Hope this will be helpful

answered Nov 17 '15 at 06:54

Karlos

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3

I've done this a bunch of times, and it's still hard to remember... Such awkward syntax, IMO – elsurudo Jul 11 '16 at 08:31
1

It's just one of those ones that you add to your autocomplete snippets in XCode because otherwise you're just going to be coming back right here :D – CommaToast Aug 18 '16 at 18:41
@Karlos, why do you assign `nil` to `request.HTTPBody` ? – bibscy Aug 31 '17 at 18:43
@bibscy: Its just an example. – Karlos Sep 08 '17 at 04:40

In Swift 2.1, how do you get the NSError that was thrown?

1 Answers1