Swift ObjectMapper 映射具有多种类型值的数组 - 数字和复杂对象混合

Question

I have this JSON object that I want to parse using Swift ObjectMapper

{
    "id": 1,
    "jsonrpc": "2.0",
    "result": [
        0,
        {
            "data": {
                "username": "myuser"
            },
            "expires": 300,
            "timeout": 300,
            "ubus_rpc_session": "some_value"
        }
    ]
}

I can't figure out how to properly parsed the inner array with mixed content, specifically this part:

[ 0, { /* ... */ } ]

I have tried to solve it in various ways, but haven't been able to find a working solution. I suspect StaticMappable might work, and I have used it for other Polymorphic parsing, but never when one of the array items is a number.

Any help would be appreciated.

Answer 1

I am afraid that the only way to map this array, using ObjectMapper , is in [Any] :

class Result: Mappable {
    var id: Int?
    var jsonrpc: String?
    var result: [Any]?
    
    required init?(map: Map) {}
    
    func mapping(map: Map) {
        id <- map["id"]
        jsonrpc <- map["jsonrpc"]
        result <- map["result"]
    }
}

That way, for this particular json response, the first element of the array will be of type Int and the second will be of type [String: Any] .

Of course, this includes the type casting procedure whenever you are trying to access an element of this array. (which is just bad)