CODEWITHSUNDEEP
swiftgetrequestalamofire
Creative crypter
Creative crypter

Reputation: 1496

Swift - Alamofire completionhandler

I am working with Alamofire to retrieve data from a web API:

func getData(completionHandler: (responseObject: NSDictionary?) -> ()) -> () {
    Alamofire.request(.GET, "http://example.com/api/resource/")
        .validate()
        .authenticate(user: user, password: password)
        .responseJSON { (request, response, responseObject) in

            switch responseObject {
                case .Success:
                    print("Validation Successful")
                    completionHandler(responseObject: responseObject as? NSDictionary)
                case .Failure(_, let error):
                    print(error)
            }

    }
}

override func viewDidLoad() {
    super.viewDidLoad()

    getData { (str, error) in
        if str != nil {
            print(str)
        } else {
            print(error)
        }
    }
}

When I run the code, it gives an error, the error is shown below

Command failed due to signal: Segmentation fault: 11

I don't know what is wrong with it and how to fix it. Any suggestions are very much appreciated.

Upvotes: 3

Views: 1247

Answers (2)

cnoon
cnoon

Reputation: 16643

You are calling getData incorrectly. You are passing the completion handler two parameters (str, error when it only takes a single responseObject.

Upvotes: 3

r4id4
r4id4

Reputation: 6077

Had a similar problem while using Alamofire once. I deleted and reimported framework and then it worked. Looked like the compiler had some problem with that.

Anyway try to Product > Clean your project also.

If it still doesn't work try to set breakpoints (or simply comment) your nested section to spot where is exactly the failure.

Upvotes: 2

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