Download support

NetworkingSampleApp/NetworkingSampleApp.xcodeproj/project.pbxproj

@@ -18,12 +18,18 @@
 		23EA9CF9292FB70A00B8E418 /* SampleUserResponse.swift in Sources */ = {isa = PBXBuildFile; fileRef = 23EA9CEF292FB70A00B8E418 /* SampleUserResponse.swift */; };
 		23EA9CFA292FB70A00B8E418 /* SampleUserAuthRequest.swift in Sources */ = {isa = PBXBuildFile; fileRef = 23EA9CF1292FB70A00B8E418 /* SampleUserAuthRequest.swift */; };
 		23EA9CFB292FB70A00B8E418 /* SampleUserRequest.swift in Sources */ = {isa = PBXBuildFile; fileRef = 23EA9CF2292FB70A00B8E418 /* SampleUserRequest.swift */; };
+		58C3E75E29B78EE6004FD1CD /* DownloadsView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 58C3E75C29B78ED3004FD1CD /* DownloadsView.swift */; };
+		58C3E75F29B78EE8004FD1CD /* DownloadsViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 58C3E75D29B78ED3004FD1CD /* DownloadsViewModel.swift */; };
+		58C3E76129B79259004FD1CD /* SampleDownloadRouter.swift in Sources */ = {isa = PBXBuildFile; fileRef = 58C3E76029B79259004FD1CD /* SampleDownloadRouter.swift */; };
+		58C3E76529B7D709004FD1CD /* DownloadProgressViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 58C3E76429B7D709004FD1CD /* DownloadProgressViewModel.swift */; };
 		58E4E0ED2982D884000ACBC0 /* SampleAuthorizationStorageManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 58E4E0EC2982D884000ACBC0 /* SampleAuthorizationStorageManager.swift */; };
 		58E4E0EF29843B42000ACBC0 /* NetworkingSampleApp.swift in Sources */ = {isa = PBXBuildFile; fileRef = 58E4E0EE29843B42000ACBC0 /* NetworkingSampleApp.swift */; };
 		58E4E0F129850E86000ACBC0 /* ContentView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 58E4E0F029850E86000ACBC0 /* ContentView.swift */; };
 		58FB80C7298521FF0031FC59 /* AuthorizationView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 58FB80C6298521FF0031FC59 /* AuthorizationView.swift */; };
 		58FB80CE29895ABF0031FC59 /* TestData.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 58FB80CD29895ABF0031FC59 /* TestData.xcassets */; };
 		DD410D6F293F2E6E006D8E31 /* AuthorizationViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = DD410D6E293F2E6E006D8E31 /* AuthorizationViewModel.swift */; };
+		DD6E48732A0E24D30025AD05 /* DownloadProgressView.swift in Sources */ = {isa = PBXBuildFile; fileRef = DD6E48722A0E24D30025AD05 /* DownloadProgressView.swift */; };
+		DD6E48762A0E2CD30025AD05 /* DownloadAPIManager+SharedInstance.swift in Sources */ = {isa = PBXBuildFile; fileRef = DD6E48752A0E2CD30025AD05 /* DownloadAPIManager+SharedInstance.swift */; };
 		DD887780293E33850065ED03 /* SampleErrorProcessor.swift in Sources */ = {isa = PBXBuildFile; fileRef = DD88777F293E33850065ED03 /* SampleErrorProcessor.swift */; };
 		DDD3AD1F2950E794006CB777 /* SampleAuthRouter.swift in Sources */ = {isa = PBXBuildFile; fileRef = DDD3AD1E2950E794006CB777 /* SampleAuthRouter.swift */; };
 		DDD3AD212951F527006CB777 /* SampleAuthorizationManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = DDD3AD202951F527006CB777 /* SampleAuthorizationManager.swift */; };
@@ -45,12 +51,18 @@
 		23EA9CEF292FB70A00B8E418 /* SampleUserResponse.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SampleUserResponse.swift; sourceTree = "<group>"; };
 		23EA9CF1292FB70A00B8E418 /* SampleUserAuthRequest.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SampleUserAuthRequest.swift; sourceTree = "<group>"; };
 		23EA9CF2292FB70A00B8E418 /* SampleUserRequest.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SampleUserRequest.swift; sourceTree = "<group>"; };
+		58C3E75C29B78ED3004FD1CD /* DownloadsView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DownloadsView.swift; sourceTree = "<group>"; };
+		58C3E75D29B78ED3004FD1CD /* DownloadsViewModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DownloadsViewModel.swift; sourceTree = "<group>"; };
+		58C3E76029B79259004FD1CD /* SampleDownloadRouter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SampleDownloadRouter.swift; sourceTree = "<group>"; };
+		58C3E76429B7D709004FD1CD /* DownloadProgressViewModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DownloadProgressViewModel.swift; sourceTree = "<group>"; };
 		58E4E0EC2982D884000ACBC0 /* SampleAuthorizationStorageManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SampleAuthorizationStorageManager.swift; sourceTree = "<group>"; };
 		58E4E0EE29843B42000ACBC0 /* NetworkingSampleApp.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NetworkingSampleApp.swift; sourceTree = "<group>"; };
 		58E4E0F029850E86000ACBC0 /* ContentView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContentView.swift; sourceTree = "<group>"; };
 		58FB80C6298521FF0031FC59 /* AuthorizationView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AuthorizationView.swift; sourceTree = "<group>"; };
 		58FB80CD29895ABF0031FC59 /* TestData.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = TestData.xcassets; sourceTree = "<group>"; };
 		DD410D6E293F2E6E006D8E31 /* AuthorizationViewModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AuthorizationViewModel.swift; sourceTree = "<group>"; };
+		DD6E48722A0E24D30025AD05 /* DownloadProgressView.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = DownloadProgressView.swift; sourceTree = "<group>"; };
+		DD6E48752A0E2CD30025AD05 /* DownloadAPIManager+SharedInstance.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "DownloadAPIManager+SharedInstance.swift"; sourceTree = "<group>"; };
 		DD88777F293E33850065ED03 /* SampleErrorProcessor.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SampleErrorProcessor.swift; sourceTree = "<group>"; };
 		DDD3AD1E2950E794006CB777 /* SampleAuthRouter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SampleAuthRouter.swift; sourceTree = "<group>"; };
 		DDD3AD202951F527006CB777 /* SampleAuthorizationManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SampleAuthorizationManager.swift; sourceTree = "<group>"; };
@@ -91,6 +103,7 @@
 		23A575B325F8B9DA00617551 /* NetworkingSampleApp */ = {
 			isa = PBXGroup;
 			children = (
+				DD6E48742A0E2CC70025AD05 /* Extensions */,
 				58FB80CC29895A8D0031FC59 /* Resources */,
 				23EA9CE7292FB70A00B8E418 /* API */,
 				23A575ED25F8BF0E00617551 /* Scenes */,
@@ -113,6 +126,7 @@
 		23A575ED25F8BF0E00617551 /* Scenes */ = {
 			isa = PBXGroup;
 			children = (
+				58C3E75B29B78ED3004FD1CD /* Download */,
 				58FB80C5298521DA0031FC59 /* Authorization */,
 			);
 			path = Scenes;
@@ -153,6 +167,7 @@
 			isa = PBXGroup;
 			children = (
 				DDD3AD1E2950E794006CB777 /* SampleAuthRouter.swift */,
+				58C3E76029B79259004FD1CD /* SampleDownloadRouter.swift */,
 				23EA9CE9292FB70A00B8E418 /* SampleUserRouter.swift */,
 			);
 			path = Routers;
@@ -178,6 +193,17 @@
 			path = Requests;
 			sourceTree = "<group>";
 		};
+		58C3E75B29B78ED3004FD1CD /* Download */ = {
+			isa = PBXGroup;
+			children = (
+				DD6E48722A0E24D30025AD05 /* DownloadProgressView.swift */,
+				58C3E75C29B78ED3004FD1CD /* DownloadsView.swift */,
+				58C3E75D29B78ED3004FD1CD /* DownloadsViewModel.swift */,
+				58C3E76429B7D709004FD1CD /* DownloadProgressViewModel.swift */,
+			);
+			path = Download;
+			sourceTree = "<group>";
+		};
 		58FB80C5298521DA0031FC59 /* Authorization */ = {
 			isa = PBXGroup;
 			children = (
@@ -195,6 +221,14 @@
 			path = Resources;
 			sourceTree = "<group>";
 		};
+		DD6E48742A0E2CC70025AD05 /* Extensions */ = {
+			isa = PBXGroup;
+			children = (
+				DD6E48752A0E2CD30025AD05 /* DownloadAPIManager+SharedInstance.swift */,
+			);
+			path = Extensions;
+			sourceTree = "<group>";
+		};
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
@@ -271,21 +305,27 @@
 			buildActionMask = 2147483647;
 			files = (
 				58E4E0EF29843B42000ACBC0 /* NetworkingSampleApp.swift in Sources */,
+				DD6E48762A0E2CD30025AD05 /* DownloadAPIManager+SharedInstance.swift in Sources */,
 				DDE8884529476AC300DD3BFF /* SampleRefreshTokenRequest.swift in Sources */,
 				DDD3AD212951F527006CB777 /* SampleAuthorizationManager.swift in Sources */,
 				23EA9CF7292FB70A00B8E418 /* SampleUserAuthResponse.swift in Sources */,
 				58E4E0ED2982D884000ACBC0 /* SampleAuthorizationStorageManager.swift in Sources */,
 				23EA9CF6292FB70A00B8E418 /* SampleAPIError.swift in Sources */,
 				58E4E0F129850E86000ACBC0 /* ContentView.swift in Sources */,
+				58C3E76529B7D709004FD1CD /* DownloadProgressViewModel.swift in Sources */,
 				23EA9CF9292FB70A00B8E418 /* SampleUserResponse.swift in Sources */,
 				DDD3AD1F2950E794006CB777 /* SampleAuthRouter.swift in Sources */,
 				DD887780293E33850065ED03 /* SampleErrorProcessor.swift in Sources */,
 				23EA9CFB292FB70A00B8E418 /* SampleUserRequest.swift in Sources */,
 				23EA9CFA292FB70A00B8E418 /* SampleUserAuthRequest.swift in Sources */,
+				58C3E76129B79259004FD1CD /* SampleDownloadRouter.swift in Sources */,
 				23EA9CF4292FB70A00B8E418 /* SampleUserRouter.swift in Sources */,
 				23EA9CF5292FB70A00B8E418 /* SampleAPIConstants.swift in Sources */,
 				58FB80C7298521FF0031FC59 /* AuthorizationView.swift in Sources */,
 				DD410D6F293F2E6E006D8E31 /* AuthorizationViewModel.swift in Sources */,
+				58C3E75F29B78EE8004FD1CD /* DownloadsViewModel.swift in Sources */,
+				58C3E75E29B78EE6004FD1CD /* DownloadsView.swift in Sources */,
+				DD6E48732A0E24D30025AD05 /* DownloadProgressView.swift in Sources */,
 				23EA9CF8292FB70A00B8E418 /* SampleUsersResponse.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;

NetworkingSampleApp/NetworkingSampleApp/API/Routers/SampleDownloadRouter.swift

@@ -0,0 +1,28 @@
+//
+//  SampleDownloadRouter.swift
+//  
+//
+//  Created by Matej Molnár on 07.03.2023.
+//
+
+import Foundation
+import Networking
+
+/// Implementation of sample API router
+enum SampleDownloadRouter: Requestable {
+    case download(url: URL)
+
+    var baseURL: URL {
+        switch self {
+        case let .download(url):
+            return url
+        }
+    }
+
+    var path: String {
+        switch self {
+        case .download:
+            return ""
+        }
+    }
+}

NetworkingSampleApp/NetworkingSampleApp/API/SampleAPIConstants.swift

@@ -13,4 +13,5 @@ enum SampleAPIConstants {
     static let authHost = "https://nonexistentmockauth.com/api"
     static let validEmail = "eve.holt@reqres.in"
     static let validPassword = "cityslicka"
+    static let videoUrl = "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ElephantsDream.mp4"
 }

NetworkingSampleApp/NetworkingSampleApp/ContentView.swift

@@ -7,23 +7,26 @@
 
 import SwiftUI
 
-enum NetworkingCase: String, Hashable, CaseIterable {
+enum NetworkingFeature: String, Hashable, CaseIterable {
     case authorization
+    case downloads
 }
 
 struct ContentView: View {
     var body: some View {
         NavigationStack {
             List {
-                ForEach(NetworkingCase.allCases, id: \.self) { screen in
-                    NavigationLink(screen.rawValue.capitalized, value: NetworkingCase.authorization)
+                ForEach(NetworkingFeature.allCases, id: \.self) { feature in
+                    NavigationLink(feature.rawValue.capitalized, value: feature)
                 }
             }
             .navigationTitle("Examples")
-            .navigationDestination(for: NetworkingCase.self) { screen in
-                switch screen {
+            .navigationDestination(for: NetworkingFeature.self) { feature in
+                switch feature {
                 case .authorization:
                     AuthorizationView()
+                case .downloads:
+                    DownloadsView()
                 }
             }
         }

NetworkingSampleApp/NetworkingSampleApp/Extensions/DownloadAPIManager+SharedInstance.swift

@@ -0,0 +1,32 @@
+//
+//  DownloadAPIManager+SharedInstance.swift
+//  NetworkingSampleApp
+//
+//  Created by Dominika Gajdová on 12.05.2023.
+//
+
+import Networking
+
+extension DownloadAPIManager {
+    static var shared: DownloadAPIManaging = {
+        var responseProcessors: [ResponseProcessing] = [
+            LoggingInterceptor.shared,
+            StatusCodeProcessor.shared
+        ]
+        var errorProcessors: [ErrorProcessing] = [LoggingInterceptor.shared]
+
+    #if DEBUG
+        responseProcessors.append(EndpointRequestStorageProcessor.shared)
+        errorProcessors.append(EndpointRequestStorageProcessor.shared)
+    #endif
+
+        return DownloadAPIManager(
+            urlSessionConfiguration: .default,
+            requestAdapters: [
+                LoggingInterceptor.shared
+            ],
+            responseProcessors: responseProcessors,
+            errorProcessors: errorProcessors
+        )
+    }()
+}

NetworkingSampleApp/NetworkingSampleApp/Info.plist

@@ -2,6 +2,11 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>NSAppTransportSecurity</key>
+	<dict>
+		<key>NSAllowsArbitraryLoads</key>
+		<true/>
+	</dict>
 	<key>CFBundleDevelopmentRegion</key>
 	<string>$(DEVELOPMENT_LANGUAGE)</string>
 	<key>CFBundleExecutable</key>

NetworkingSampleApp/NetworkingSampleApp/Scenes/Download/DownloadProgressView.swift

@@ -0,0 +1,75 @@
+//
+//  DownloadProgressView.swift
+//  NetworkingSampleApp
+//
+//  Created by Matej Molnár on 07.03.2023.
+//
+
+import SwiftUI
+
+struct DownloadProgressView: View {
+    @StateObject var viewModel: DownloadProgressViewModel
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 8) {
+            content
+        }
+        .task {
+            await viewModel.startObservingDownloadProgress()
+        }
+        .padding(10)
+        .background(
+            Color.white
+                .cornerRadius(15)
+                .shadow(radius: 10)
+        )
+        .padding(15)
+    }
+}
+
+// MARK: Components
+private extension DownloadProgressView {
+    @ViewBuilder
+    var content: some View {
+        Text(viewModel.state.title)
+            .padding(.bottom, 8)
+
+        Text("Status: \(viewModel.state.statusTitle)")
+        Text("\(String(format: "%.1f", viewModel.state.percentCompleted))% of \(String(format: "%.1f", viewModel.state.totalMegaBytes))MB")
+
+        if let errorTitle = viewModel.state.errorTitle {
+            Text("Error: \(errorTitle)")
+        }
+
+        if let fileURL = viewModel.state.fileURL {
+            Text("FileURL: \(fileURL)")
+        }
+
+        downloadState
+    }
+
+    @ViewBuilder
+    var downloadState: some View {
+        if viewModel.state.status != .completed {
+            HStack {
+                Button {
+                    viewModel.suspend()
+                } label: {
+                    Text("Suspend")
+                }
+
+                Button {
+                    viewModel.resume()
+                } label: {
+                    Text("Resume")
+                }
+
+                Button {
+                    viewModel.cancel()
+                } label: {
+                    Text("Cancel")
+                }
+            }
+        }
+    }
+}

NetworkingSampleApp/NetworkingSampleApp/Scenes/Download/DownloadProgressViewModel.swift

@@ -0,0 +1,72 @@
+//
+//  DownloadProgressViewModel.swift
+//  NetworkingSampleApp
+//
+//  Created by Matej Molnár on 07.03.2023.
+//
+
+import Foundation
+import Networking
+
+@MainActor
+final class DownloadProgressViewModel: ObservableObject {
+    private let task: URLSessionTask
+
+    @Published var state: DownloadProgressState = .init()
+
+    init(task: URLSessionTask) {
+        self.task = task
+    }
+
+    func startObservingDownloadProgress() async {
+        let stream = DownloadAPIManager.shared.progressStream(for: task)
+
+        for try await downloadState in stream {
+            var newState = DownloadProgressState()
+            newState.percentCompleted = downloadState.fractionCompleted * 100
+            newState.totalMegaBytes = Double(downloadState.totalBytes) / 1_000_000
+            newState.status = downloadState.taskState
+            newState.statusTitle = downloadState.taskState.title
+            newState.errorTitle = downloadState.error?.localizedDescription
+            newState.fileURL = downloadState.downloadedFileURL?.absoluteString
+            newState.title = task.currentRequest?.url?.absoluteString ?? "-"
+            state = newState
+        }
+    }
+
+    func suspend() {
+        task.suspend()
+    }
+
+    func resume() {
+        task.resume()
+    }
+
+    func cancel() {
+        task.cancel()
+    }
+}
+
+// MARK: Download state
+struct DownloadProgressState {
+    var title: String = ""
+    var status: URLSessionTask.State = .running
+    var statusTitle: String = ""
+    var percentCompleted: Double = 0
+    var totalMegaBytes: Double = 0
+    var errorTitle: String?
+    var fileURL: String?
+}
+
+// MARK: URLSessionTask states
+private extension URLSessionTask.State {
+    var title: String {
+        switch self {
+        case .canceling: return "cancelling"
+        case .completed: return "completed"
+        case .running: return "running"
+        case .suspended: return "suspended"
+        @unknown default: return ""
+        }
+    }
+}