letjsonObject:AnyObject!=NSJSONSerialization.JSONObjectWithData(dataFromTwitter, options:NSJSONReadingOptions.MutableContainers, error:nil)iflet statusesArray= jsonObjectas?NSArray{iflet aStatus=statusesArray[0]as?NSDictionary{iflet user=aStatus["user"]as?NSDictionary{iflet userName=user["name"]as?NSDictionary{                //Finally We Got The Name}}}}

letjsonObject:AnyObject!=NSJSONSerialization.JSONObjectWithData(dataFromTwitter, options:NSJSONReadingOptions.MutableContainers, error:nil)iflet userName=(((jsonObjectas?NSArray)?[0]as?NSDictionary)?["user"]as?NSDictionary)?["name"]{  //What A disaster above}

letjson=JSON(data: dataFromNetworking)iflet userName=json[0]["user"]["name"].string{  //Now you got your value}

letjson=JSON(data: dataFromNetworking)iflet userName=json[999999]["wrong_key"]["wrong_name"].string{    //Calm down, take it easy, the ".string" property still produces the correct Optional String type with safety}else{    //Print the errorprintln(json[999999]["wrong_key"]["wrong_name"])}

Requirements

Usage

letjson=JSON(data: dataFromNetworking)

letjson=JSON(jsonObject)

//With a int from JSON supposed to an Arrayletname=json[0].double

//With a string from JSON supposed to an Dictionaryletname=json["name"].stringValue

//With an array like path to the elementletpath=[1,"list",2,"name"]letname=json[path].string //Just the sameletname=json[1]["list"][2]["name"].string

//With a literal array to the elementletname=json[1,"list",2,"name"].string //Just the sameletname=json[1]["list"][2]["name"].string

//With a Hard Wayletname=json[[1,"list",2,"name"]].string

//If json is .Dictionaryfor(key: String, subJson: JSON)in json{   //Do something you want}

//If json is .Array//The `index` is 0..<json.count's string valuefor(index: String, subJson: JSON)in json{    //Do something you want}

letjson=JSON(["name","age"])letname=json[999].string{    //Do something you want} else{println(json[999].error) // "Array[999] is out of bounds"}

letjson=JSON(["name":"Jack","age":25])letname=json["address"].string{    //Do something you want} else{println(json["address"].error) // "Dictionary["address"] does not exist"}

letjson=JSON(12345)letage=json[0].string{    //Do something you want} else{println(json[0])       // "Array[0] failure, It is not an array"println(json[0].error) // "Array[0] failure, It is not an array"}letname=json["name"].string{    //Do something you want} else{println(json["name"])       // "Dictionary[\"name"] failure, It is not an dictionary"println(json["name"].error) // "Dictionary[\"name"] failure, It is not an dictionary"}

//NSNumberiflet id=json["user"]["favourites_count"].number{   //Do something you want}else{   //Print the errorprintln(json["user"]["favourites_count"].error)}

//Stringiflet id=json["user"]["name"].string{   //Do something you want}else{   //Print the errorprintln(json["user"]["name"])}

//Booliflet id=json["user"]["is_translator"].bool{   //Do something you want}else{   //Print the errorprintln(json["user"]["is_translator"])}

//Intiflet id=json["user"]["id"].int{   //Do something you want}else{   //Print the errorprintln(json["user"]["id"])}...

//If not a Number or nil, return 0letid:Int=json["id"].intValue

//If not a String or nil, return ""letname:String=json["name"].stringValue

//If not a Array or nil, return []letlist:Array<JSON>=json["list"].arrayValue

//If not a Dictionary or nil, return [:]letuser:Dictionary<String,JSON>=json["user"].dictionaryValue

json["name"]=JSON("new-name")json[0]=JSON(1)

json["id"].int=1234567890json["coordinate"].double=8766.766json["name"].string="Jack"json.array=[1,2,3,4]json.dictionary=["name":"Jack","age":25]

letjsonObject:AnyObject= json.object

iflet jsonObject:AnyObject= json.rawValue

//convert the JSON to raw NSDataiflet data= json.rawData(){    //Do something you want}

//convert the JSON to raw Stringiflet string= json.rawString(){    //Do something you want}

//StringLiteralConvertibleletjson:JSON="I'm a json"

//IntegerLiteralConvertibleletjson:JSON=12345

//BooleanLiteralConvertibleletjson:JSON=true

//FloatLiteralConvertibleletjson:JSON=2.8765

//DictionaryLiteralConvertibleletjson:JSON=["I":"am","a":"json"]

//ArrayLiteralConvertibleletjson:JSON=["I","am","a","json"]

//NilLiteralConvertibleletjson:JSON=nil

//With subscript in arrayvarjson:JSON=[1,2,3]json[0]=100json[1]=200json[2]=300json[999]=300 //Don't worry, nothing will happen

//With subscript in dictionaryvarjson:JSON=["name":"Jack","age":25]json["name"]="Mike"json["age"]="25" //It's OK to set Stringjson["address"]="L.A." // Add the "address": "L.A." in json

//Array & Dictionaryvarjson:JSON=["name":"Jack","age":25,"list":["a","b","c",["what":"this"]]]json["list"][3]["what"]="that"json["list",3,"what"]="that"letpath=["list",3,"what"]json[path]="that"

Alamofire.request(.GET, url, parameters: parameters).responseJSON{(req, res, json, error)inif(error!=nil){NSLog("Error:\(error)")println(req)println(res)}else{NSLog("Success:\(url)")varjson=JSON(json!)}}