Created
September 6, 2019 15:09
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easily convert json data to model object
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import Foundation | |
protocol Receivable { | |
init?(from: Data) | |
} | |
extension Receivable where Self: Decodable { | |
init?(from jsonData: Data) { | |
guard let decoded = try? JSONDecoder().decode(Self.self, from: jsonData) else { return nil } | |
self = decoded | |
} | |
} | |
extension Array where Element: Receivable & Decodable { | |
init?(from jsonData: Data) { | |
guard let decoded = try? JSONDecoder().decode(Array<Element>.self, from: jsonData) else { return nil } | |
self = decoded | |
} | |
} | |
struct TestObject2: Codable, Receivable { | |
let id: String | |
let pass: String | |
} | |
// TEST | |
let jsonData = "{\"id\":\"hi\", \"pass\":\"omg\"}".data(using: .utf8)! | |
// try! JSONEncoder().encode(TestObject2(id: "hi", pass: "omg")) | |
print(TestObject2(from: jsonData)) | |
let jsonArrayData = "[{\"id\":\"hi\", \"pass\":\"omg\"}, {\"id\":\"bye\", \"pass\":\"good\"}]".data(using: .utf8)! | |
//try! JSONEncoder().encode([TestObject2(id: "hi", pass: "omg"), TestObject2(id: "hi2", pass: "omg!!!")]) | |
print([TestObject2](from: jsonArrayData)) |
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