swift 5 具有可编码数组的抽象网络响应

Question

我有一个模型 Employee & Office:

struct Employee: Codable {
    let id: Int
    let firstName: String
    let lastName: String
}
struct Office: Codable {
    let id: Int
    let name: String
}

根据要求要求员工或办公室机构：

{
  total: Int
  rows: [Employee]
}
or
{
  total: Int
  rows: [Office]
}

为此，我想创建如下抽象模型：

struct NetworkResponse: Codable {
    let rows: [Codable]
    let total: Int
}

但它抛出错误：

Type 'NetworkResponse' does not conform to protocol 'Decodable'

Type 'NetworkResponse' does not conform to protocol 'Encodable'

Cannot automatically synthesize 'Decodable' because '[Decodable]' does not conform to 'Decodable'

如何为任何响应创建抽象响应模型？

Answer 1

使用泛型：

struct NetworkResponse<T: Codable>: Codable {
    let rows: [T]
    let total: Int
}

typealias EmployeeResponse = NetworkResponse<Employee>
typealias OfficeReponse = NetworkResponse<Office>

swift 5 具有可编码数组的抽象网络响应

swift 5 abstract network response with codable array

swift

codable