JSON from String not working

[itssimon]

In the playground try this (branch swift-2.0):

import JASON

let json = JSON("{\"name\": \"foo\"}")
json["name"].stringValue

I'd expect the last line to show "foo". But it doesn't.

[BluMist]

You want to actually invoke the init(NSData?) to get the JSON functionality. Otherwise, json.object in your example is just a literal string.

To convert string into NSData:

import JASON

let jsonString: NSString = "{"name": "foo"}"
let data = jsonString.dataUsingEncoding(NSUTF8StringEncoding)

let json = JSON(data)
json["name"].stringValue

[itssimon]

Ah, I see. Wouldn't it be nice if there was a JSON.init(String) or a static method JSON.fromString(String) that did just that? Otherwise it would be good to mention this in the README

[BluMist]

Most of the time, you'll either be reading the JSON from a file or from an API response. Both of those are usually read as NSData, which can then be plugged into the init()

It'd be quite cumbersome to construct JSON strings manually ;)

[delba]

Hey @itssimon, initializing JASON from a raw string of JSON doesn't work and there is no plan to support this in the future.

Meanwhile, if you want to read JSON from a file, you can write something like this:

if let path = NSBundle.mainBundle().pathForResource("person", ofType: "json"),
    data = try? NSData(contentsOfFile: path) {
        let json = JSON(data)
        print(json["name"].stringValue)
}

Thanks for the support @BluMist 😉