预期的数组，但在 Swift 中找到字典

如何解决预期的数组，但在 Swift 中找到字典

我是 Swift 中 Codable 的新手，我正在尝试从 API (https://sportspagefeeds.com/documentation) 获取一些数据。我不需要从 API 获取所有数据，只需要在模型中指定字段。尝试运行我的代码时出现此错误：typeMismatch(Swift.Array<Any>,Swift.DecodingError.Context(codingPath: [],debugDescription: "Expected to decode Array<Any> but found a dictionary instead.",underlyingError: nil))

奇怪的是，当我将 API 响应放入字符串中然后对其进行编码时，我可以使用完全相同的代码成功对其进行解码。有人对这里有任何见解吗？我从响应中收到 200 代码

代码：

let request = NSMutableuRLRequest(url: NSURL(string: "https://sportspage-Feeds.p.rapidapi.com/games?league=NBA")! as URL,cachePolicy: .useProtocolCachePolicy,timeoutInterval: 10.0)
        request.httpMethod = "GET"
        request.allHTTPHeaderFields = headers
        
        let session = URLSession.shared
        session.dataTask(with: request as URLRequest,completionHandler: { (data,response,error) -> Void in
            
            if let data = data {
                do {
                    let dec = JSONDecoder()
                    dec.keyDecodingStrategy = .convertFromSnakeCase
                    let games = try dec.decode([Game].self,from: data)
                    print(games)
                    
                } catch {
                    print(error)
                    
                }
   
            }
        }).resume()

API 返回结构（来自链接）：

[
    {
        "gameId":"tv7mnr2-g7c4fe5-p95kxge-ptyhr72","details":{
            "league":"NFL","season":2018,"seasonType":"regular","conferenceGame":true,"divisionGame":true
        },"schedule":{
            "date":"2018-12-30T18:00:00.000Z","tbaTime":false
        },"teams":{
            "away":{
                "team":"Miami Dolphins","location":"Miami","mascot":"Dolphins","abbreviation":"MIA","conference":"AFC","division":"East"
            },"home":{
                "team":"buffalo Bills","location":"buffalo","mascot":"Bills","abbreviation":"BUF","division":"East"
            }
        },"venue":{
            "name":"New Era Field","city":"Orchard Park","state":"NY","neutralSite":false
        },"scoreboard":{
            "score":{
                "away":17,"home":42,"awayPeriods": [0,14,3,0],"homePeriods": [14,14]
            },"currentPeriod":4,"periodTimeRemaining":"0:00"
        },[ etc...... ]

]

这是我的模型：

public struct Game: Codable {
    public var gameId: String?
    public var details: Details?
    public var teams: Teams?
    public var scoreboard: scoreboard?
}

public struct Details: Codable {
    public var league: String?
    
}

public struct Teams: Codable {
    public var home: Team?
    public var away: Team?
}

public struct Team: Codable {
    public var team: String?
    public var abbreviation: String?
}

public struct scoreboard: Codable {
    public var score: score?
    public var currentPeriod: Int?
    public var periodTimeRemaining: String?
}

public struct score: Codable {
    public var away: Int?
    public var home: Int?
}

解决方法

让我们看看来自 api 的响应：

    "status": 200,"time": "2021-03-26T01:42:14.010Z","games": 5,"skip": 0,"results": [....]

响应是字典，但您将其编码为 [Game] 数组，这是您收到此错误的原因。您需要创建更多这样的模型

public struct GameResponse: Codable {
    var status: Int
    var time: String
    var games: Int
    var skip: Int
    var results: [Game]

}

并将响应解码为 GameResponseModel：

    let games = try dec.decode(GameResponse.self,from: data)

把你的游戏id改成Int，因为它不是String

public struct Game: Codable {
    public var gameId: Int?
    public var details: Details?
    public var teams: Teams?
    public var scoreboard: Scoreboard?
}