🔀 상품 개수 API 연결 (#33)

* ✨ Implement product count api request model and endpoint

* 🚧 Create mock JSON and response model

- Connected URLProtocol with mock JSON and linked the network flow in `HomeService`, setting up a foundation for network testing.

* 🐛 Fix bug where mock JSON file could not be read

* ✨ Connect HomeProductCount API to view

Author: WhiteHyun

APIService/Package.swift

@@ -32,7 +32,7 @@ let package = Package(
       dependencies: [
         "HomeAPI",
       ],
-      resources: [.process("HomeProductResponse.json")]
+      resources: [.process("Mocks")]
     ),
   ]
 )

APIService/Sources/HomeAPI/HomeEndPoint.swift

@@ -8,12 +8,39 @@
 import Foundation
 import Network
 
-struct HomeEndPoint: EndPoint {
-  let method: HTTPMethod = .get
+// MARK: - HomeEndPoint
 
-  let path: String = "v2/products"
+public enum HomeEndPoint {
+  case fetchProducts(ProductRequest)
+  case fetchCount(ProductCountRequest)
+}
+
+// MARK: EndPoint
+
+extension HomeEndPoint: EndPoint {
+  public var method: HTTPMethod {
+    .get
+  }
+
+  public var path: String {
+    switch self {
+    case .fetchProducts:
+      "/v2/products"
+    case .fetchCount:
+      "/v2/products/count"
+    }
+  }
 
-  let parameters: HTTPParameter = .plain
+  public var parameters: HTTPParameter {
+    switch self {
+    case let .fetchProducts(requestModel):
+      .query(requestModel)
+    case let .fetchCount(requestModel):
+      .query(requestModel)
+    }
+  }
 
-  let headers: [String: String] = ["Content-Type": "application/json"]
+  public var headers: [String: String] {
+    ["Content-Type": "application/json"]
+  }
 }

APIService/Sources/HomeAPI/HomeService.swift

@@ -12,7 +12,8 @@ import Network
 // MARK: - HomeServiceRepresentable
 
 public protocol HomeServiceRepresentable {
-  func fetchProductList() async throws -> [Product]
+  func fetchProductList(request: ProductRequest) async throws -> [Product]
+  func fetchProductCount(request: ProductCountRequest) async throws -> Int
 }
 
 // MARK: - HomeService
@@ -28,10 +29,15 @@ public struct HomeService {
 // MARK: HomeServiceRepresentable
 
 extension HomeService: HomeServiceRepresentable {
-  public func fetchProductList() async throws -> [Product] {
-    let products: [ProductResponse] = try await network.request(with: HomeEndPoint())
+  public func fetchProductList(request: ProductRequest) async throws -> [Product] {
+    let products: [ProductResponse] = try await network.request(with: HomeEndPoint.fetchProducts(request))
     return products.map(Product.init)
   }
+
+  public func fetchProductCount(request: ProductCountRequest) async throws -> Int {
+    let countResponse: ProductCountResponse = try await network.request(with: HomeEndPoint.fetchCount(request))
+    return countResponse.count
+  }
 }
 
 private extension Product {

APIService/Sources/HomeAPI/Requests/ProductCountRequest.swift

@@ -0,0 +1,17 @@
+//
+//  ProductCountRequest.swift
+//
+//
+//  Created by 홍승현 on 2/2/24.
+//
+
+import Entity
+import Foundation
+
+public struct ProductCountRequest: Encodable {
+  public let convenienceStore: ConvenienceStore
+
+  public init(convenienceStore: ConvenienceStore) {
+    self.convenienceStore = convenienceStore
+  }
+}

APIService/Sources/HomeAPI/Requests/ProductRequest.swift

@@ -14,4 +14,12 @@ public struct ProductRequest: Encodable {
   public let order: Order
   public let pageSize: Int
   public let offset: Int
+
+  public init(store: ConvenienceStore, promotion: Promotion, order: Order, pageSize: Int, offset: Int) {
+    self.store = store
+    self.promotion = promotion
+    self.order = order
+    self.pageSize = pageSize
+    self.offset = offset
+  }
 }

APIService/Sources/HomeAPI/Responses/ProductCountResponse.swift

@@ -0,0 +1,12 @@
+//
+//  ProductCountResponse.swift
+//
+//
+//  Created by 홍승현 on 2/2/24.
+//
+
+import Foundation
+
+struct ProductCountResponse: Decodable {
+  let count: Int
+}

APIService/Sources/HomeAPI/Responses/ProductResponse.swift

@@ -8,15 +8,15 @@
 import Entity
 import Foundation
 
-public struct ProductResponse: Decodable {
-  public let id: Int
-  public let imageURL: URL
-  public let price: Int
-  public let name: String
-  public let promotion: Promotion
-  public let convenienceStore: ConvenienceStore
+struct ProductResponse: Decodable {
+  let id: Int
+  let imageURL: URL
+  let price: Int
+  let name: String
+  let promotion: Promotion
+  let convenienceStore: ConvenienceStore
 
-  public enum CodingKeys: String, CodingKey {
+  enum CodingKeys: String, CodingKey {
     case id
     case imageURL = "image_url"
     case price

APIService/Sources/HomeAPISupport/HomeURLProtocol.swift

@@ -6,10 +6,18 @@
 //
 
 import Foundation
+import HomeAPI
 import Network
 
 public final class HomeURLProtocol: URLProtocol {
-  private let fileName = "HomeProductResponse"
+  private lazy var mockData: [String: Data?] = [
+    HomeEndPoint.fetchProducts(
+      .init(store: .gs25, promotion: .allItems, order: .normal, pageSize: 0, offset: 0)
+    ).path: loadMockData(fileName: "HomeProductResponse"),
+    HomeEndPoint.fetchCount(
+      .init(convenienceStore: .gs25)
+    ).path: loadMockData(fileName: "HomeProductCountResponse"),
+  ]
 
   override public class func canInit(with _: URLRequest) -> Bool {
     true
@@ -21,8 +29,9 @@ public final class HomeURLProtocol: URLProtocol {
 
   override public func startLoading() {
     defer { client?.urlProtocolDidFinishLoading(self) }
-    if let data = loadMockData(fileName: fileName),
-       let url = request.url,
+    if let url = request.url,
+       let mockData = mockData[url.path(percentEncoded: true)],
+       let data = mockData,
        let response = HTTPURLResponse(url: url, statusCode: 200, httpVersion: nil, headerFields: nil) {
       client?.urlProtocol(self, didReceive: response, cacheStoragePolicy: .notAllowed)
       client?.urlProtocol(self, didLoad: data)

APIService/Sources/HomeAPISupport/Mocks/HomeProductCountResponse.json

@@ -0,0 +1,3 @@
+{
+  "count": 24
+}