Decode Swift Dictionary Json

Question

我在解码以下json时遇到了问题，因为我有不同数据类型的字典数组，并且任何不支持可编码?

我可以在模型中改变什么来使它工作?谢谢你。

这是json

"alerts":[
{
"id":"https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.eae34c2b3a065ca71d8746f3c67123c93a12257d.002.1",
"areaDescription":"Ashland, OH; Knox, OH; Richland, OH",
"dateSent":1680365400,
"dateEffective":1680365400,
"dateOnset":1680365400,
"dateExpires":1680366600,
"dateEnds":1680366600,
"severity":"Severe",
"certainty":"Observed",
"urgency":"Immediate",
"senderName":"NWS Cleveland OH",
"description":"At 1208 PM EDT, severe thunderstorms were located along a line extending from near Nashville to 7 miles east of Utica, moving east at 60 mph.nnHAZARD...60 mph wind gusts.nnSOURCE...Radar indicated.nnIMPACT...Expect damage to trees and power lines.nnLocations impacted include... Mansfield, Mount Vernon, Lexington, Loudonville, Fredericktown, Gambier, Utica, Bellville, Centerburg, Danville, Waterford, Butler, Perrysville, Lucas, Martinsburg, Gann, North Liberty and Bladensburg.",
"instruction":"For your protection move to an interior room on the lowest floor of a building.",
"response":"Shelter",
"event":"Severe Thunderstorm Warning",
"headline":"Severe Thunderstorm Warning issued April 1 at 12:10PM EDT until April 1 at 12:30PM EDT by NWS Cleveland OH",
"nwsHeadline":[
"A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 PM EDT FOR SOUTHERN RICHLAND...SOUTHEASTERN ASHLAND AND KNOX COUNTIES"
],
"polygon":[
[
40.24,
-82.48
],
[
40.27,
-82.48
],
[
40.28,
-82.74000000000001
],
[
40.35,
-82.75000000000001
],
[
40.35,
-82.65000000000002
],
[
40.550000000000004,
-82.64000000000001
],
[
40.550000000000004,
-82.62000000000002
],
[
40.67,
-82.65000000000002
],
[
40.67,
-82.62000000000002
],
[
40.71,
-82.62000000000002
],
[
40.72,
-82.73000000000002
],
[
40.729999899999996,
-82.73000000000002
],
[
40.709999999999994,
-82.13000000000002
],
[
40.669999999999995,
-82.13000000000002
],
[
40.669999999999995,
-82.22000000000003
],
[
40.56999999999999,
-82.22000000000003
],
[
40.56999999999999,
-82.18000000000002
],
[
40.239999999999995,
-82.20000000000002
],
[
40.24,
-82.48
]
],
"multiPolygon":[
[
[
40.24,
-82.48
],
[
40.27,
-82.48
],
[
40.28,
-82.74000000000001
],
[
40.35,
-82.75000000000001
],
[
40.35,
-82.65000000000002
],
[
40.550000000000004,
-82.64000000000001
],
[
40.550000000000004,
-82.62000000000002
],
[
40.67,
-82.65000000000002
],
[
40.67,
-82.62000000000002
],
[
40.71,
-82.62000000000002
],
[
40.72,
-82.73000000000002
],
[
40.729999899999996,
-82.73000000000002
],
[
40.709999999999994,
-82.13000000000002
],
[
40.669999999999995,
-82.13000000000002
],
[
40.669999999999995,
-82.22000000000003
],
[
40.56999999999999,
-82.22000000000003
],
[
40.56999999999999,
-82.18000000000002
],
[
40.239999999999995,
-82.20000000000002
],
[
40.24,
-82.48
]
]
],
"affectedZoneIDs":[
{
"type":"county",
"id":"OHC005"
},
{
"type":"county",
"id":"OHC083"
},
{
"type":"county",
"id":"OHC139"
}
],
"messageType":"update"
},
{,

下面是我现在的文字:

func getWeatherAlerts() -> AnyPublisher<Alerts, Error> {
guard let url = URL(string: "https://api.alltheapps.org/weather/v3/allActiveAlerts?apiKey=da230328") else {
return Fail(error: CustomError.invalidUrl).eraseToAnyPublisher()
}
return URLSession.shared.dataTaskPublisher(for: url)
.catch { error in
return Fail(error: error).eraseToAnyPublisher()
}.map( {$0.data})
.decode(type: Alerts.self, decoder: JSONDecoder())
.eraseToAnyPublisher()
}

和映射

struct Alerts: Decodable {
let alerts: [[String:String]]

}

enum CodingKeys: String, CodingKey {
case alertTitle = "event"
case startDateAlert = "dateOnset"
case endDateAlert = "dateEnds"
case sourceOfAlert = "senderName"

}

struct WeatherAlertsModel:Decodable {
var alertTitle:String
var startDateAlert:Date
var endDateAlert:Date
var sourceOfAlert:String
var severity:String
var certainty:String
var urgency:String
var description:String
var affectedZoneIDs:[String]

}

它给了我一个错误的解析，因为我有[String:String]， json也有[String:Int]或[String:Date]

Answer 1

您可以使用这样的结构体:

struct WeatherALaertsModel: Codable {
struct Alert: Codable, Identifiable {
var id: String
var areaDescription: String
var description: String
// add any other needed record

typealias Point = [Double]
typealias Polygon = [Point]
typealias MultiPolygon = [Polygon]
var polygon: Polygon

var multiPolygon: MultiPolygon

struct ZoneId: Codable, Identifiable {
var type: String
var id: String
}

var affectedZoneIDs: [ZoneId]
var messageType: String
}
let alerts: [Alert]
}
// Assuming you get the json in a Data var named "data"
let weatherModel = try decoder.decode(WeatherALaertsModel.self, from: data)