“應解碼Dictionary<String,Any>但找到了一個陣列。”，underlyingError:nil;GitHub存盤庫顯示應用程式；SwiftUI

我需要創建一個能夠回傳 GitHub 用戶擁有的所有存盤庫的應用程式。

我創建了一個包含 3 個檔案的應用程式：內容視圖

import SwiftUI

struct ContentView: View {
    
    @StateObject var netManager = NetworkingManager()
    
    
    var body: some View {
            List {
                ForEach(netManager.owner) { item in
                    Text(item.reposUrl)
                }
        }
    }
}

API 密鑰

import Foundation

struct Root : Decodable, Identifiable {
    let id: Int
    let items : [Repository]
}

struct Repository: Decodable, Identifiable {
    let id: Int
    let name, fullName: String
    let owner : Owner
}

struct Owner : Decodable, Identifiable {
    let id: Int
    let reposUrl : String
}

解碼器（因為我知道我以后應該需要另一個，除非我可以足夠抽象這個）

class NetworkingManager: ObservableObject{
    @Published var owner = [Owner]()
    
    init() {
            loadData()
        }

        func loadData() {
            guard let url = URL(string: "https://api.github.com/users/jacobtoye/repos") else { return }
            URLSession.shared.dataTask(with: url) {(data, _, _) in
                guard let data = data else { return }
                do {
                    let response = try JSONDecoder().decode(Owner.self, from: data)
                } catch {
                    print("error: \(error)")
                }
                
            }.resume()
        }
        
    }

代碼運行良好，但我沒有得到任何結果（第一個螢屏是空白的），我想在那里查看所選用戶存盤庫的串列。你能幫我解碼字典嗎？

我還想知道問題是否不在于我也沒有使用 convertFromSnakeCase 鍵解碼策略，但是當 JSONDecoder 包裝在常量中時，我不知道如何將其放在那里。

uj5u.com熱心網友回復：

對于極簡的作業示例代碼，試試這個：

struct Repository: Decodable, Identifiable {
    let id: Int
    let name, fullName: String
    let owner: Owner
    
    enum CodingKeys: String, CodingKey {
        case id, name, owner
        case fullName = "full_name"  // <-- here
    }
}

struct Owner : Decodable, Identifiable {
    let id: Int
    let reposUrl : String

    enum CodingKeys: String, CodingKey, CaseIterable {
        case id
        case reposUrl = "repos_url"  // <-- here
    }
}

class NetworkingManager: ObservableObject{
    @Published var owner = [Owner]()
    
    init() {
        loadData()
    }
    
    func loadData() {
        guard let url = URL(string: "https://api.github.com/users/jacobtoye/repos") else { return }
        URLSession.shared.dataTask(with: url) {(data, _, _) in
            guard let data = data else { return }
            DispatchQueue.main.async { // <-- here
                do {
                    let repos = try JSONDecoder().decode([Repository].self, from: data)  // <-- here
                    repos.forEach{ self.owner.append($0.owner) }
                } catch {
                    print("error: \(error)")
                }
           }
        }.resume()
    }
}

struct ContentView: View {
    @StateObject var netManager = NetworkingManager()
    
    var body: some View {
        List {
            ForEach(netManager.owner) { item in
                Text(item.reposUrl)
            }
        }
    }
}

這應該給你一個串列，"https://api.github.com/users/jacobtoye/repos"因為那是資料的組成部分。

EDIT-1：列出所有回購

class NetworkingManager: ObservableObject{
    @Published var repos = [Repository]() // <-- here repos
    
    init() {
        loadData()
    }
    
    func loadData() {
        guard let url = URL(string: "https://api.github.com/users/jacobtoye/repos") else { return }
        URLSession.shared.dataTask(with: url) {(data, _, _) in
            guard let data = data else { return }
            DispatchQueue.main.async { // <-- here
                do {
                    self.repos = try JSONDecoder().decode([Repository].self, from: data)  // <-- here
                } catch {
                    print("error: \(error)")
                }
            }
        }.resume()
    }
}

struct ContentView: View {
    @StateObject var netManager = NetworkingManager()
    
    var body: some View {
        List {
            ForEach(netManager.repos) { repo in
              VStack {
                Text(repo.fullName).foregroundColor(.blue)
                Text(repo.owner.reposUrl)
              }
            }
        }
    }
}

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