parsing-json.swift

struct Device: Codable {
    var name: String
    var manufacturer: String
}

struct User: Encodable {
    var name: String
    var username: String
    var phoneNumber: String
    var devices: [Device]
}

func encode(user: User) -> Data? {
    do {
        let encoder = JSONEncoder()
        let data = try encoder.encode(user)
        return data
    } catch let error {
        print(error)
        return nil
    }
}

let device = Device(name: "iPhone 8 Plus", manufacturer: "Apple")
let user = User(name: "Mike Ross", username: "mross", phoneNumber: "555-523-234", devices: [device])
if let data = encode(user: user) {
    print(data)
}