Date Decoding Strategy Key Encoding and Decoding in Swift

DateDecodingStrategy.swift

struct TestDecode:Codable {
    let updated:Date
}

let json = """
{
   "updated":"2019-2-21T02:02:55-08:00"
}
"""

let data = Data(json.utf8) //convert to data
let decoder = JSONDecoder()
decoder.dateDecodingStrategy = .iso8601
let decoded = try decoder.decode(TestDecode.self, from: data)
print(type(of: decoded.updated))
print(decoded.updated)

//output
Date
2019-02-21 10:02:55 +0000