CODEWITHSUNDEEP
iosxcodetuplesalamofire
Anuj Arora
Anuj Arora

Reputation: 3047

Alamofire Not Working Properly - Tuple Issue Different number of elements

Using Xcode 7.1

In the Alamofire responseJSON request I cannot put 4 parameters. Below is the code

 let url2 = "https://httpbin.org/get"
    Alamofire.request(.GET, url2).responseJSON{ request, response, JSON, error  in
        print(JSON)
    }

I get this error: Tuple types '(NSURLRequest?, NSHTTPURLResponse?, Result)' (aka '(Optional, Optional, Result)') and '(_, _, _, _)' have a different number of elements (3 vs. 4)

If I remove the "error" parameter from responseJSON and run it...the app builds but no json is printed on the console..

  let url2 = "https://httpbin.org/get"
    Alamofire.request(.GET, url2).responseJSON{ request, response, JSON in
        print(JSON)
    }

Console Output

enter image description here

There is no JSON being printed. If you go to sample URL from the code you will see JSON.

I have followed the instructions from GitHub but its not working

Upvotes: 6

Views: 1598

Answers (2)

Rob
Rob

Reputation: 437452

Alamofire v1.x had four parameters to the responseJSON closure. Alamofire v2.x had three parameters. Alamofire v3.x now calls the closure with a single parameter, a Response:

Alamofire.request(.GET, url2).responseJSON { response in
    switch (response.result) {
    case .Success(let value):
        print(value)
    case .Failure(let error):
        if let data = response.data, let string = String(data: data, encoding: NSUTF8StringEncoding) {
            print(string)
        }
        print(error)
    }
}

Alternatively, you can use the isSuccess, isFailure, value, data and error computed properties for Result, e.g.:

Alamofire.request(.GET, url2).responseJSON { response in
    print(response.result.value)
}

[This has been updated for the Alamofire 3 syntax. If you need the Alamofire 2 syntax, please refer to this question's revision history.]

Upvotes: 10

irkinosor
irkinosor

Reputation: 776

The documentation on Github has not been updated to the latest version of Alamofire.

To see the properties that Rob pointed out, check the source code of the Framework.

Upvotes: 0

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