jsondecoder

everyone, how to serialize json struct, if one of field unknown? My json is: {"brands":{"any":false,"19":{"is_all":false,"values":[185,182,178],"include":true},"23":{"is_all":false,"values":[198,199,201],"include":true}},"price":[2000,10000],"year":[1990,2018],"fuel_type":[1,2],"engine_capacity":[\"1.8\",\"4.8\"],"color":[1,2,3],"gearbox_id":[2],"is_georgia":false} but: "19":{"is_all":false,"values":[185,182,178],"include":true} "23":{"is_all":false,"values":[198,199,201],"include":true} 19 and 23 - is string unknown value, it's generated by API. So my struct is: struct auto_order_model:

We have some response returned by backend: { "name": "Some name", "number": 42, ............ "param0": value0, "param1": value1, "param2": value2 } Model structure for response: struct Model: Codable { let name: String let number: Int let params: [String: Any] } How to make JSONDecoder combine all unknown key-value pairs into params property? Decodable is incredibly powerful. It can decode completely arbitrary JSON, so this is just a sub-set of that problem. For a fully worked-out JSON Decodable , see this JSON . I'll pull the concept of Key from example, but for simplicity I'll assume that

I am trying to parse a JSON array which can be { "config_data": [ { "name": "illuminate", "config_title": "Blink" }, { "name": "shoot", "config_title": "Fire" } ] } or it can be of following type { "config_data": [ "illuminate", "shoot" ] } or even { "config_data": [ 25, 100 ] } So to parse this using JSONDecoder I created a struct as follows - Struct Model: Codable { var config_data: [Any]? enum CodingKeys: String, CodingKey { case config_data = "config_data" } init(from decoder: Decoder) throws { let values = try decoder.container(keyedBy: CodingKeys.self) config_data = try values.decode(

I try to use Swift 4.1's new feature to convert snake-case to camelCase during JSON decoding. Here is the example : struct StudentInfo: Decodable { internal let studentID: String internal let name: String internal let testScore: String private enum CodingKeys: String, CodingKey { case studentID = "student_id" case name case testScore } } let jsonString = """ {"student_id":"123","name":"Apple Bay Street","test_score":"94608"} """ do { let decoder = JSONDecoder() decoder.keyDecodingStrategy = .convertFromSnakeCase let decoded = try decoder.decode(StudentInfo.self, from: Data(jsonString.utf8))

if I want to decode my JSON there is something weird happening. Here's the structs struct chatMessages : Codable { var message: [chatMessage] } struct chatMessage : Codable { var user: String var message: String var status: String var latitude: Double var longitude: Double init(from decoder: Decoder) throws { let values = try decoder.container(keyedBy: CodingKeys.self) user = try values.decode(String.self, forKey: .user) message = try values.decode(String.self, forKey: .message) status = try values.decode(String.self, forKey: .status) latitude = try values.decodeIfPresent(Double.self, forKey: