Merge pull request #3 from Student-Center/feat/network

[WEAV-17] Alamofire 네트워크 레이어 구축

Projects/App/Sources/ContentView.swift

@@ -9,18 +9,29 @@ public struct ContentView: View {
     public init() {}
 
     public var body: some View {
-        Text("Hello, World!")
-            .padding()
-            .onAppear {
-                ThisIsCoreKit.something()
-                ThisIsNetworkKit.something()
-                print(ThisIsNetworkKit.thisServer)
+        VStack {
+            Text("Hello, World!")
+                .padding()
+                .onAppear {
+                    ThisIsCoreKit.something()
+                    ThisIsNetworkKit.something()
+                    print(ThisIsNetworkKit.thisServer)
+                }
+
+            MainView()
+
+            SampleComponent()
+                .foregroundStyle(Color.tempColor)
+        }
+        .onAppear {
+            Task {
+                do {
+                    try await ExampleEndpoint.example.request()
+                } catch {
+                    print(error)
+                }
             }
-
-        MainView()
-
-        SampleComponent()
-            .foregroundStyle(Color.tempColor)
+        }
     }
 }
 

Projects/Core/CoreKit/Sources/AuthStatus.swift

@@ -0,0 +1,27 @@
+//
+//  AuthStatus.swift
+//  NetworkKit
+//
+//  Created by 김지수 on 8/25/24.
+//  Copyright © 2024 com.studentcenter. All rights reserved.
+//
+
+import Foundation
+
+public class AuthState: ObservableObject {
+
+    public enum State {
+        case loggedIn
+        case loggedOut
+    }
+
+    public static let shared = AuthState()
+
+    private init() {}
+
+    @Published public private(set) var current: State = .loggedOut
+
+    public func updateAuthState(to status: State) {
+        self.current = status
+    }
+}

Projects/Core/NetworkKit/Sources/AuthService/AuthEndpoint.swift

@@ -0,0 +1,48 @@
+//
+//  AuthEndpoint.swift
+//  NetworkKit
+//
+//  Created by 김지수 on 8/25/24.
+//  Copyright © 2024 com.studentcenter. All rights reserved.
+//
+
+import Foundation
+import Alamofire
+
+public enum AuthEndpoint {
+    case refreshToken
+}
+
+extension AuthEndpoint: EndpointType {
+
+    public var method: HTTPMethod {
+        switch self {
+        case .refreshToken: return .post
+        }
+    }
+
+    public var path: String {
+        switch self {
+        case .refreshToken: return "auth/refresh-token"
+        }
+    }
+
+    public var parameters: Encodable? {
+        switch self {
+        case .refreshToken:
+            if let refreshToken = TokenManager.refreshToken {
+                return ["refreshToken": refreshToken]
+            }
+            return nil
+        }
+    }
+
+    public var body: Encodable? {
+        return nil
+    }
+}
+
+struct TokenResponse: Decodable {
+    let accessToken: String
+    let refreshToken: String
+}

Projects/Core/NetworkKit/Sources/ExampleService/ExampleEndpoint.swift

@@ -0,0 +1,38 @@
+//
+//  ExampleEndpoint.swift
+//  NetworkKit
+//
+//  Created by 김지수 on 8/24/24.
+//  Copyright © 2024 com.studentcenter. All rights reserved.
+//
+
+import Foundation
+import Alamofire
+
+public enum ExampleEndpoint {
+    case example
+}
+
+extension ExampleEndpoint: EndpointType {
+
+
+    public var method: HTTPMethod {
+        switch self {
+        case .example: return .get
+        }
+    }
+
+    public var path: String {
+        switch self {
+        case .example: return "api/"
+        }
+    }
+
+    public var parameters: Encodable? {
+        return nil
+    }
+
+    public var body: Encodable? {
+        return nil
+    }
+}

Projects/Core/NetworkKit/Sources/NetworkCore/EndpointType.swift

@@ -0,0 +1,19 @@
+//
+//  EndpointType.swift
+//  NetworkKit
+//
+//  Created by 김지수 on 8/24/24.
+//  Copyright © 2024 com.studentcenter. All rights reserved.
+//
+
+import Foundation
+import Alamofire
+
+public protocol EndpointType {
+    var method: HTTPMethod { get }
+    var path: String { get }
+    var parameters: Encodable? { get }
+    var body: Encodable? { get }
+    func request<T: Decodable>(_ type: T.Type) async throws -> T
+    func request() async throws
+}

Projects/Core/NetworkKit/Sources/NetworkCore/Interceptor.swift

@@ -0,0 +1,70 @@
+//
+//  Interceptor.swift
+//  NetworkKit
+//
+//  Created by 김지수 on 8/25/24.
+//  Copyright © 2024 com.studentcenter. All rights reserved.
+//
+
+import Foundation
+import CoreKit
+import Alamofire
+
+class AuthInterceptor: RequestInterceptor {
+
+    private let retryLimit = 3
+    private let retryDelay: TimeInterval = 1.5
+
+    func adapt(
+        _ urlRequest: URLRequest,
+        for session: Session,
+        completion: @escaping (Result<URLRequest, Error>) -> Void
+    ) {
+        var urlRequest = urlRequest
+
+        // AccessToken 추가
+        if let token = TokenManager.accessToken {
+            urlRequest.setValue(
+                "Bearer \(token)",
+                forHTTPHeaderField: "Authorization"
+            )
+        }
+
+        completion(.success(urlRequest))
+    }
+
+    func retry(
+        _ request: Request,
+        for session: Session,
+        dueTo error: Error,
+        completion: @escaping (RetryResult) -> Void
+    ) {
+        guard let response = request.task?.response as? HTTPURLResponse, 
+                response.statusCode == 401,
+                request.retryCount < retryLimit else {
+            completion(.doNotRetry)
+            return
+        }
+
+        // refresh 토큰 갱신 후 retry
+        Task {
+            do {
+                try await refreshAccessToken()
+                completion(.retryWithDelay(retryDelay))
+            } catch {
+                await MainActor.run {
+                    AuthState.shared.updateAuthState(to: .loggedOut)
+                }
+                completion(.doNotRetry)
+            }
+        }
+    }
+
+    private func refreshAccessToken() async throws {
+        let endpoint = AuthEndpoint.refreshToken
+        let response = try await endpoint.request(TokenResponse.self)
+
+        TokenManager.accessToken = response.accessToken
+        TokenManager.refreshToken = response.refreshToken
+    }
+}

Projects/Core/NetworkKit/Sources/NetworkCore/Logger.swift

@@ -0,0 +1,77 @@
+//
+//  Logger.swift
+//  NetworkKit
+//
+//  Created by 김지수 on 8/25/24.
+//  Copyright © 2024 com.studentcenter. All rights reserved.
+//
+
+import Foundation
+import Alamofire
+
+class NetworkLogger: EventMonitor {
+    var queue: DispatchQueue = DispatchQueue(label: "myNetworkLogger")
+
+    func requestDidFinish(_ request: Request) {
+        print("")
+        print("======================== 👉 Network Request Log 👈 ==========================")
+        debugPrint("✅ [URL] : \(request.request?.url?.absoluteString ?? "")")
+        debugPrint("✅ [Method] : \(request.request?.httpMethod ?? "")")
+        debugPrint("✅ [Headers] : \(request.request?.allHTTPHeaderFields ?? [:])")
+
+        if let body = request.request?.httpBody?.toPrettyPrintedString {
+            debugPrint("✅ [Body] : \(body)")
+        } else {
+            debugPrint("✅ [Body] : body 없음")
+        }
+        print("==============================================================================")
+        print("")
+    }
+
+    func request<Value>(
+        _ request: DataRequest,
+        didParseResponse response: DataResponse<Value, AFError>
+    ) {
+        print("")
+        print("======================== 👉 Network Response Log 👈 ========================")
+
+        switch response.result {
+        case .success:
+            debugPrint("✅ [StatusCode] : \(response.response?.statusCode ?? 0)")
+        case .failure:
+            debugPrint("🚨 요청 실패")
+        }
+
+
+        if let statusCode = response.response?.statusCode {
+            switch statusCode {
+            case 400..<500:
+                debugPrint("🚨 클라이언트 오류")
+            case 500..<600:
+                debugPrint("🚨 서버 오류")
+            default:
+                break
+            }
+        }
+
+        if let response = response.data?.toPrettyPrintedString {
+          debugPrint("✅ [Response] : \(response)")
+        }
+
+        print("============================================================================")
+        print("")
+    }
+}
+
+
+fileprivate extension Data {
+    var toPrettyPrintedString: String? {
+        guard let object = try? JSONSerialization.jsonObject(with: self, options: []),
+              let data = try? JSONSerialization.data(withJSONObject: object, options: [.prettyPrinted]),
+              let prettyPrintedString = NSString(data: data, encoding: String.Encoding.utf8.rawValue)
+        else {
+            return nil
+        }
+        return prettyPrintedString as String
+    }
+}