Encodable and Decodable With (Codable = Decodable + Encodable) in Swift

Encodable : - "Encodable means convert Request Parameters(Model) to Data"

By using the Encodable protocol we can generate request parameters by Model Class / Struct

struct AddProduct: Encodable{

    var title: String = ""

    init(title: String){

        self.title = title

    }

}

Decodable: -  "Decodable means convert Data to Request Parameters(Model)"

By using the Decodable protocol we can convert API response in Model Class / Struct. When done with API call decoding the response in terms of UserResponse object

struct ProductResponse: Decodable {

    let id: Int

    let title: String

}

Codable = Decodable + Encodable

Codable :-  typealias of Encodable +  Decodable

Codable is a type alias for the 'Encodable' and 'Decodable' protocols. 

When you use 'Codable' as a type or a generic constraint, it matches 

Any type that conforms to both protocols. 

public typealias Codable = Decodable & Encodable

struct AddProduc: Codable{

    var id: Int = 0

    var title: String = ""

    

    init(title: String){

        self.title = title

    }

}