JUNSON

JUNSON is JSON decode and encode Library for Swift3.0.

// decode json to person object.

let json = JUNSON(data: data)
let lukeSkywalker: Person = json["results"][0].decode()

// by Optional
let darthVader: Person = json["results"][1].asOptional.decode()

// by try-Catch
do {
	let leiaOrgana: Person = json["results"][2].asTry.decode()
} catch {
}

Features

JUNSON is simple library for encoding/decoding JSON for Swift.

• type-safe JSON decode.
• make any type decodable by implementing JUNSONDecodable
• make any type encodable by implementing JUNSONEncodable
• handling decode/encode error by try-catch, optional, and replacing with default value(like SwiftyJSON).

Example

Create JUNSON object with any objects

First of all, you have to create JUNSON object to access json easily. You can create JUNSON object with various type (like String,NSData,AnyObject).

String

// with String	
let rawValue: String = "{\"hoge\":\"hoge\",\"foo\":1,\"bar\":0.12 }"
let junson = JUNSON(string: rawValue)

Data

let rawData: Data = rawValue.data(using: .utf8)!
let junson = JUNSON(data: rawValue)

Retrieve the value[WIP]

when you retrieve value from JSON, you do not need specify value type.

class Person {
	let name: String = ""
	let age: Int = 0
}
let junson = JUNSON(string:string)
let person = Person()

person.name = junson.decode(key:"name")
person.name = junson["age"].decode()

Implementing JUNSONDecodable to your class, or struct,
decoding JSON is more easily.

class Person: JUNSONDecodable {
	let name: String = ""
	let age: Int = 0
	
	// AnyJUNSON is protocol implemented by JUNSON,OptionalJUNSON and TryJUNSON
   static func decode(junson: AnyJUNSON) -> Person? {
    	let defaultJunson = junson.asDefault
    	return Person(name: defaultJunson.decode(key: "name"),
    					 age: defaultJunson.decode(key: "age"))
   }
	
}

let junson = JUNSON(string:string)
let person = junson.decode()

To retrieve the value, JUNSON supports various approaches to handle parsing error.

handling by default value (like SwiftyJSON)

when decode error occured, If you want to replace object by specified value(default value), use JUNSON *when you use JUNSON,please implement JUNSONDefaultValue to your class/struct,and define default value.

class Person: JUNSONDecodable,JUNSONDefaultValue {
	
    static var defaultValue: Person {
    	return Person(name:"",age:20)
    }
	
	static func decode(junson: AnyJUNSON) -> Person? {
   ..
   }
	
}

let junson = JUNSON(string:string)
let person: Person = junson.asDefault.decode()

handling by Optional

• there is potential that object is not exist, use OptionalJUNSON(or JUNSON.asOptional)

let junson = OptionalJUNSON(string:string) // or JUNSON(string;string).asOptional

let person: Person? = junson.asDefault

try-catch

• If you want to decode JSON more strictly, use TryJUNSON(or JUNSON.asTry)

let junson = TryJUNSON(string:string) // or JUNSON(string;string).asTry
do {
	let person: Person = try json.decode()
} catch JUNSONError.hasNoValue(let key) {
	// failed decoding value
}

Encode

By implementing JUNSONEncodable to your any class/structs, you can encode object to JSON more easily.

class Person: JUNSONEncodable {
	let name: String
	let age: Int
	
    func encode() -> Any? {
    	return ["name",name,"age",age]
    }
}

var persons = [Person]()
persons.append(Person(name:"Luke Skywalker",age:19))
persons.append(Person(name:"Darth Vader",age:42))
persons.append(Person(name:"Leia Organa",age:19))

let dict = [String:Any]()
dict["count"] = persons.count
dict["persons"] = persons

let data = JUNSON.encode(any:dict)
let string: String = String(data:data,encoding: .utf8)!
/*
{
    "count": 3, 
    "persons": [
        {
            "age": 19, 
            "name": "Luke Skywalker"
        }, 
        {
            "age": 42, 
            "name": "Darth Vader"
        }, 
        {
            "age": 19, 
            "name": "Leia Organa"
        }
    ]
}
*/

Requirements

Swift 3.0 , Xcode8

Installation

Cocoapods

JUNSON is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod "JUNSON"

Carthage

Add github SatoshiN21/JUNSON to your cart file. Execute carthage update to install it.

Author

SatoshiN21, satoshi.nagasaka21@gmail.com

License

JUNSON is available under the MIT license. See the LICENSE file for more info.