How to create decodable of nested array in swift?-CodePudding

Background: I'm using swift [email protected] and I need to parse json data

AF.request("https://xxx.json").validate().responseDecodable(of: Decodable)

The data looks like:

[
   [
       "a",
       123,
       1.0,
   ],
   [
       "b",
       456,
       2.0,
   ],
]

My code (this is the wrong way):

struct Item: Codable {
   var name: String
}

...responseDecodable(of: [Item].self)

Should I use enum instead? I read some similar answers but they all have keys at some point, my data is pure array without keys.

CodePudding user response：

Assuming the types are always the same in the same order this is a simple example how to decode the inner array, the struct member names are arbitrary

struct Item: Decodable {
    let name: String
    let someInt: Int
    let someDouble: Double
    
    init(from decoder: Decoder) throws {
        var container = try decoder.unkeyedContainer()
        name = try container.decode(String.self)
        someInt = try container.decode(Int.self)
        someDouble = try container.decode(Double.self)
    }
}

and decode [Item].self