API调用和；JSON解码_Json_Swift_Api_Dictionary

API调用和；JSON解码

json swift api dictionary

API调用和；JSON解码,json,swift,api,dictionary,Json,Swift,Api,Dictionary,尝试执行API请求时遇到错误，随后将JSON解码到数据字段中目标是在应用程序内查询API并将数据映射到字典中，以便按国家轻松查询数据以下是API格式，不需要API密钥： { "Global": { "NewConfirmed": 98206, "TotalConfirmed": 5492996, "NewDeaths": 3030, "TotalDeaths": 351576, "NewRecovered": 56379, "TotalRe

尝试执行API请求时遇到错误，随后将JSON解码到数据字段中

目标是在应用程序内查询API并将数据映射到字典中，以便按国家轻松查询数据

以下是API格式，不需要API密钥：

{
  "Global": {
    "NewConfirmed": 98206,
    "TotalConfirmed": 5492996,
    "NewDeaths": 3030,
    "TotalDeaths": 351576,
    "NewRecovered": 56379,
    "TotalRecovered": 2167913
  },
  "Countries": [
    {
      "Country": "Afghanistan",
      "CountryCode": "AF",
      "Slug": "afghanistan",
      "NewConfirmed": 584,
      "TotalConfirmed": 10582,
      "NewDeaths": 2,
      "TotalDeaths": 218,
      "NewRecovered": 35,
      "TotalRecovered": 1075,
      "Date": "2020-05-26T03:04:40Z"
    },
    {
      "Country": "Albania",
      "CountryCode": "AL",
      "Slug": "albania",
      "NewConfirmed": 9,
      "TotalConfirmed": 998,
      "NewDeaths": 1,..........

以下是数据字段的结构，我认为这是我的问题所在，但我是一个初学者，不确定正确的结构/格式：

struct GlobalSum: Decodable {
    let globalNC: Int
    let globalTC: Int
    let globalND: Int
    let globalTD: Int
    let globalNR: Int
    let globalTR: Int
    let sumByCntry: [CountrySum]

    enum CodingKeys: String, CodingKey {
        case globalNC = "NewConfirmed"
        case globalTC = "TotalConfirmed"
        case globalND = "NewDeaths"
        case globalTD = "TotalDeaths"
        case globalNR = "NewRecovered"
        case globalTR = "TotalRecovered"
        case sumByCntry = "Countries"
    }
}

struct CountrySum: Decodable {
    let Country: String
    let CountryCode: String
    let Slug: String
    let NewConfirmed: Int
    let TotalConfirmed: Int
    let NewDeaths: Int
    let TotalDeaths: Int
    let NewRecovered: Int
    let TotalRecovered: Int
    let Date: String

}

下面是API调用和JSON解码：

func getSummary() {
        let callString = "https://api.covid19api.com/summary"
        let urlCall = URL(string: callString)
        guard urlCall != nil else {
            print("Error reaching API")
            return
        }
        let session = URLSession.shared
        let dataTask = session.dataTask(with: urlCall!) { (data, response, error) in
            if error == nil && data != nil {
                let decoder = JSONDecoder()
                do {
                    let sumPull = try decoder.decode(GlobalSum.self, from: data!)
                    print(sumPull.globalNC)
                }
                catch {
                    print(error)               }
            }
        }
        dataTask.resume()
    }

下面是错误：

dataCorrupted(Swift.DecodingError.Context(codingPath: [], debugDescription: "The given data was not valid JSON.", underlyingError: Optional(Error Domain=NSCocoaErrorDomain Code=3840 "Invalid value around character 0." UserInfo={NSDebugDescription=Invalid value around character 0.})))

如有任何建议，将不胜感激。为可能明显的错误道歉。刚刚开始在Swift上进行自我教育。

我从json获得的信息。。你的语气应该是这样的

 struct CoronaCases {
        let global : GlobalSum
        let countries: CountrySum
        let date: String

        enum CodingKeys: String, CodingKey {
            case global = "Global"
            case countries = "Countries"
            case date = "Date"

        }
    }

    struct GlobalSum: Decodable {
        let globalNC: Int
        let globalTC: Int
        let globalND: Int
        let globalTD: Int
        let globalNR: Int
        let globalTR: Int


        enum CodingKeys: String, CodingKey {
            case globalNC = "NewConfirmed"
            case globalTC = "TotalConfirmed"
            case globalND = "NewDeaths"
            case globalTD = "TotalDeaths"
            case globalNR = "NewRecovered"
            case globalTR = "TotalRecovered"

        }
    }
    struct CountrySum: Decodable {
        let Country: String
        let CountryCode: String
        let Slug: String
        let NewConfirmed: Int
        let TotalConfirmed: Int
        let NewDeaths: Int
        let TotalDeaths: Int
        let NewRecovered: Int
        let TotalRecovered: Int
        let Date: String

    }

然后

let sumPull = try decoder.decode(CoronaCases.self, from: data!)

下面是app.quicktype.io生成的内容

import Foundation

// MARK: - Welcome
struct Welcome: Codable {
    let global: Global
    let countries: [Country]
    let date: Date

    enum CodingKeys: String, CodingKey {
        case global = "Global"
        case countries = "Countries"
        case date = "Date"
    }
}

// MARK: - Country
struct Country: Codable {
    let country, countryCode, slug: String
    let newConfirmed, totalConfirmed, newDeaths, totalDeaths: Int
    let newRecovered, totalRecovered: Int
    let date: Date

    enum CodingKeys: String, CodingKey {
        case country = "Country"
        case countryCode = "CountryCode"
        case slug = "Slug"
        case newConfirmed = "NewConfirmed"
        case totalConfirmed = "TotalConfirmed"
        case newDeaths = "NewDeaths"
        case totalDeaths = "TotalDeaths"
        case newRecovered = "NewRecovered"
        case totalRecovered = "TotalRecovered"
        case date = "Date"
    }
}

// MARK: - Global
struct Global: Codable {
    let newConfirmed, totalConfirmed, newDeaths, totalDeaths: Int
    let newRecovered, totalRecovered: Int

    enum CodingKeys: String, CodingKey {
        case newConfirmed = "NewConfirmed"
        case totalConfirmed = "TotalConfirmed"
        case newDeaths = "NewDeaths"
        case totalDeaths = "TotalDeaths"
        case newRecovered = "NewRecovered"
        case totalRecovered = "TotalRecovered"
    }
}

我从json获得的信息。。你的语气应该是这样的

 struct CoronaCases {
        let global : GlobalSum
        let countries: CountrySum
        let date: String

        enum CodingKeys: String, CodingKey {
            case global = "Global"
            case countries = "Countries"
            case date = "Date"

        }
    }

    struct GlobalSum: Decodable {
        let globalNC: Int
        let globalTC: Int
        let globalND: Int
        let globalTD: Int
        let globalNR: Int
        let globalTR: Int


        enum CodingKeys: String, CodingKey {
            case globalNC = "NewConfirmed"
            case globalTC = "TotalConfirmed"
            case globalND = "NewDeaths"
            case globalTD = "TotalDeaths"
            case globalNR = "NewRecovered"
            case globalTR = "TotalRecovered"

        }
    }
    struct CountrySum: Decodable {
        let Country: String
        let CountryCode: String
        let Slug: String
        let NewConfirmed: Int
        let TotalConfirmed: Int
        let NewDeaths: Int
        let TotalDeaths: Int
        let NewRecovered: Int
        let TotalRecovered: Int
        let Date: String

    }

然后

let sumPull = try decoder.decode(CoronaCases.self, from: data!)

下面是app.quicktype.io生成的内容

import Foundation

// MARK: - Welcome
struct Welcome: Codable {
    let global: Global
    let countries: [Country]
    let date: Date

    enum CodingKeys: String, CodingKey {
        case global = "Global"
        case countries = "Countries"
        case date = "Date"
    }
}

// MARK: - Country
struct Country: Codable {
    let country, countryCode, slug: String
    let newConfirmed, totalConfirmed, newDeaths, totalDeaths: Int
    let newRecovered, totalRecovered: Int
    let date: Date

    enum CodingKeys: String, CodingKey {
        case country = "Country"
        case countryCode = "CountryCode"
        case slug = "Slug"
        case newConfirmed = "NewConfirmed"
        case totalConfirmed = "TotalConfirmed"
        case newDeaths = "NewDeaths"
        case totalDeaths = "TotalDeaths"
        case newRecovered = "NewRecovered"
        case totalRecovered = "TotalRecovered"
        case date = "Date"
    }
}

// MARK: - Global
struct Global: Codable {
    let newConfirmed, totalConfirmed, newDeaths, totalDeaths: Int
    let newRecovered, totalRecovered: Int

    enum CodingKeys: String, CodingKey {
        case newConfirmed = "NewConfirmed"
        case totalConfirmed = "TotalConfirmed"
        case newDeaths = "NewDeaths"
        case totalDeaths = "TotalDeaths"
        case newRecovered = "NewRecovered"
        case totalRecovered = "TotalRecovered"
    }
}

像这样更新您的模型并尝试解析它。这是我的密码

以下是正确的结构：

<代码>导入基础结构摘要：可编码{ 让全球：全球让国家：[国家] 让日期：字符串枚举编码键：字符串，编码键{ case global=“global” 案例国家=“国家” 案例日期=“日期” } } 结构国家：可编码{ let country，countryCode，slug:String 让newconfirm，totalconfirm，newdeath，totaldeath:Int 让newRecovered，totalRecovered:Int 让日期：字符串枚举编码键：字符串，编码键{ 案例国家=“国家” 案例countryCode=“countryCode” case slug=“slug” 案例newconfirm=“newconfirm” 病例总数已确认=“总数已确认” 案例newDeaths=“newDeaths” 案例总死亡数=“总死亡数” 案例newRecovered=“newRecovered” 案例totalRecovered=“totalRecovered” 案例日期=“日期” } } 结构全局：可编码{ 让newconfirm，totalconfirm，newdeath，totaldeath:Int 让newRecovered，totalRecovered:Int 枚举编码键：字符串，编码键{ 案例newconfirm=“newconfirm” 病例总数已确认=“总数已确认” 案例newDeaths=“newDeaths” 案例总死亡数=“总死亡数” 案例newRecovered=“newRecovered” 案例totalRecovered=“totalRecovered” } } 下面是API调用和JSON解码：

func getSummary() {
        let callString = "https://api.covid19api.com/summary"
        let urlCall = URL(string: callString)
        guard urlCall != nil else {
            print("Error reaching API")
            return
        }
        let session = URLSession.shared
        let dataTask = session.dataTask(with: urlCall!) { (data, response, error) in
            if error == nil && data != nil {
                let decoder = JSONDecoder()
                do {
                    let sumPull = try decoder.decode(GlobalSum.self, from: data!)
                    print(sumPull.globalNC)
                }
                catch {
                    print(error)               }
            }
        }
        dataTask.resume()
    }

func getSummary（）{
让调用字符串=”https://api.covid19api.com/summary"
让urlCall=URL（字符串：callString）
守卫呼叫！=无其他呼叫{
打印（“到达API时出错”）
返回
}
让session=URLSession.shared
让dataTask=session.dataTask（带：urlCall！）{（数据、响应、错误）在
如果错误==nil&&data！=nil{
let decoder=JSONDecoder（）
做{
让sumPull=try decoder.decode（Summary.self，from:data！）
打印（sumPull.global）
}
抓住{
打印（错误）
}
}
}
dataTask.resume（）
}

像这样更新您的模型并尝试解析它。这是我的密码

以下是正确的结构：

func getSummary() {
        let callString = "https://api.covid19api.com/summary"
        let urlCall = URL(string: callString)
        guard urlCall != nil else {
            print("Error reaching API")
            return
        }
        let session = URLSession.shared
        let dataTask = session.dataTask(with: urlCall!) { (data, response, error) in
            if error == nil && data != nil {
                let decoder = JSONDecoder()
                do {
                    let sumPull = try decoder.decode(GlobalSum.self, from: data!)
                    print(sumPull.globalNC)
                }
                catch {
                    print(error)               }
            }
        }
        dataTask.resume()
    }

func getSummary（）{
让调用字符串=”https://api.covid19api.com/summary"
让urlCall=URL（字符串：callString）
守卫呼叫！=无其他呼叫{
打印（“到达API时出错”）
返回
}
让session=URLSession.shared
让dataTask=session.dataTask（带：urlCall！）{（数据、响应、错误）在
如果错误==nil&&data！=nil{
let decoder=JSONDecoder（）
做{
让sumPull=try decoder.decode（Summary.self，from:data！）
打印（sumPull.global）
}
抓住{
打印（错误）
}
}
}
dataTask.resume（）
}

请发布完整的json？将您的json粘贴到当前返回“您已达到最大请求限制”的端点，这确实是无效的json请发布完整的json？将您的json粘贴到当前返回“您已达到最大请求限制”的端点，这确实是无效的json