SwiftyJSON Parse JSON error for array object - json

Question

I am retrieving data from URL like this:
let url = NSURL(string: baseURL)
let request = NSURLRequest(URL: url!)
let session = NSURLSession(configuration: NSURLSessionConfiguration.defaultSessionConfiguration())
let task = session.dataTaskWithRequest(request) { (data, response, error) -> Void in
if error == nil {
let swiftyJSON = JSON(data: data!)
let results = swiftyJSON[0]["name"]
print(results)
} else {
print("error")
}
}
For the above, I get data like this:
[
{
"_id":"123",
"_rev":"345",
"name":"hey"
},
{
"_id":"133",
"_rev":"33345",
"name":"hello"
}
]
I always end up in error block and I am not sure why?
I pasted the JSON in chrome console and able to do swiftyJSON[0].name. I would like to print all elements from the above json OBJECT.
Error:
error Optional(Error Domain=NSURLErrorDomain Code=-1003 "A server with the specified hostname could not be found." UserInfo={NSUnderlyingError=0x7f87514ab570 {Error Domain=kCFErrorDomainCFNetwork Code=-1003 "(null)" UserInfo={_kCFStreamErrorCodeKey=8, _kCFStreamErrorDomainKey=12}}, NSErrorFailingURLStringKey=http://localhost:3000/idea, NSErrorFailingURLKey=http://localhost:3000/idea, _kCFStreamErrorDomainKey=12, _kCFStreamErrorCodeKey=8, NSLocalizedDescription=A server with the specified hostname could not be found.})
Please note, localhost:3000 is on.

Answer 1

The error you pasted may be the request's hostname not found.
"A server with the specified hostname could not be found." The JSON parse seems right totally.

Answer 2

The error is not in the JSON data. The data cannot be retrieved in the first place since the URL http://localhost:3000/idea is not working.
Most likey, the URL is valid on your Mac but not on your iPhone. The URL would only be valid if your server side was running on the iPhone or simulator itself, which is rather unlikely.
localhost isn't a global address. On your Mac, it refers to your Mac. On an iPhone, it refers to the iPhone itself.
Open the Network Utility app on your Mac, look up the IP address and replace localhost with your IP address, e.g. http://192.168.1.37:3000/idea. Then your iOS app will be able to retrieve the data.