Error serializing data received from a swift web service 2

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Error serializing data received from a swift web service 2

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#1 by (0 votes)

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Good morning I would like you to help me please, I have a web service in Swift 2 returns an array like that

{"message": "Successfully Stored Image." "error": false}

but at the time of serializing it

 do{
     let json = try NSJSONSerialization.JSONObjectWithData(nsdata, options: NSJSONReadingOptions.MutableContainers)
   }catch{
          print(error)
          }

shows me the following error:

{Error Domain = NSCocoaErrorDomain Code = 3840 "JSON text did not start with array or object and option to allow fragments not set. "}

ios swift2 xcode ios8

asked by Juan David Gil 25.05.2016 в 16:05

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1 answer

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score 0 · Answer 1

On the one hand, the JSON string that you have passed lacks a comma between the end of message and the start of error . That is, you have:

con Exito." "error": false}

and it should be:

con Exito.", "error": false}

On the other hand, fixing that error and leaving the options to zero with [] to me works in a Playground with the following code without any error:

var str = "{\"message\": \"Imagen Almacenada con Exito.\", \"error\": false}"
var nsdata = str.dataUsingEncoding(NSUTF8StringEncoding)!

do {

    let json = try NSJSONSerialization.JSONObjectWithData(nsdata, options: [])

} catch {

    print(error)

}

Update 1

If it does not work, try the AllowFragments option

do {

    let json = try NSJSONSerialization.JSONObjectWithData(nsdata, options: NSJSONReadingOptions.AllowFragments)

} catch {

    print(error)

}