Encodable for setupToken payment source, pr feedback

Co-authored-by: Ricardo Herrera <[email protected]>

Author: KunJeongPark

Demo/Demo/Models/PaymentTokenResponse.swift

@@ -14,18 +14,18 @@ struct Customer: Codable, Equatable {
 
 struct PaymentSource: Decodable, Equatable {
 
-    var card: BasicCard?
-    var paypal: BasicPayPal?
+    var card: CardPaymentSource?
+    var paypal: PayPalPaymentSource?
 }
 
-struct BasicCard: Decodable, Equatable {
-    
+struct CardPaymentSource: Decodable, Equatable {
+
     let brand: String?
     let lastDigits: String
     let expiry: String
 }
 
-struct BasicPayPal: Decodable, Equatable {
+struct PayPalPaymentSource: Decodable, Equatable {
 
     let emailAddress: String
 }

Demo/Demo/Models/SetupTokenRequest.swift

@@ -1,12 +1,68 @@
 import Foundation
 
-enum PaymentSourceType {
+struct VaultExperienceContext: Encodable {
+
+    let returnUrl = "sdk.ios.paypal://vault/success"
+    let cancelUrl = "sdk.ios.paypal://vault/cancel"
+
+    enum CodingKeys: String, CodingKey {
+        case returnUrl = "return_url"
+        case cancelUrl = "cancel_url"
+    }
+}
+
+struct PayPal: Encodable {
+
+    var usageType: String
+    let experienceContext = VaultExperienceContext()
+
+    enum CodingKeys: String, CodingKey {
+        case usageType = "usage_type"
+        case experienceContext = "experience_context"
+    }
+}
+
+enum PaymentSourceType: Encodable {
     case card
     case paypal(usageType: String)
+
+    private enum CodingKeys: String, CodingKey {
+        case card, paypal
+    }
+
+    func encode(to encoder: Encoder) throws {
+        var container = encoder.container(keyedBy: CodingKeys.self)
+        switch self {
+        case .card:
+            try container.encode(EmptyBodyParams(), forKey: .card)
+        case .paypal(let usageType):
+            try container.encode(PayPal(usageType: usageType), forKey: .paypal)
+        }
+    }
 }
 
-struct SetUpTokenRequest {
-    
+struct VaultCustomer: Encodable {
+
+    var id: String?
+
+    private enum CodingKeys: String, CodingKey {
+        case id
+    }
+}
+
+struct SetupTokenRequestBody: Encodable {
+
+    var customer: VaultCustomer?
+    let paymentSource: PaymentSourceType
+
+    enum CodingKeys: String, CodingKey {
+        case paymentSource = "payment_source"
+        case customer
+    }
+}
+
+struct SetUpTokenRequest: Encodable {
+
     let customerID: String?
     let paymentSource: PaymentSourceType
 
@@ -21,28 +77,9 @@ struct SetUpTokenRequest {
     var headers: [String: String] {
         ["Content-Type": "application/json"]
     }
-    
-    var body: Data? {
-        var paymentSourceDict: [String: Any] = [:]
 
-        switch paymentSource {
-        case .card:
-            paymentSourceDict["card"] = [:]
-        case .paypal(let usageType):
-            paymentSourceDict["paypal"] = [
-                "usage_type": usageType,
-                "experience_context": [
-                    "return_url": "sdk.ios.paypal://vault/success",
-                    "cancel_url": "sdk.ios.paypal://vault/cancel"
-                ]
-            ]
-        }
-
-        let requestBody: [String: Any] = [
-            "customer": ["id": customerID],
-            "payment_source": paymentSourceDict
-        ]
-
-        return try? JSONSerialization.data(withJSONObject: requestBody)
+    var body: Data? {
+        let requestBodyParam = SetupTokenRequestBody(customer: VaultCustomer(id: customerID), paymentSource: paymentSource)
+        return try? JSONEncoder().encode(requestBodyParam)
     }
 }

Demo/Demo/Models/SetupTokenResponse.swift

@@ -10,11 +10,7 @@ struct SetUpTokenResponse: Decodable, Equatable {
     let customer: Customer?
     let links: [Link]
     var paypalURL: String? {
-        if let link = links.first(where: { $0.rel == "approve" }) {
-            let url = link.href
-            return url
-        }
-        return nil
+        links.first { $0.rel == "approve" }?.href
     }
 
     struct Customer: Decodable {

Demo/Demo/SwiftUIComponents/PayPalVaultViews/PayPalVaultResultView.swift

@@ -3,10 +3,10 @@ import PayPalWebPayments
 
 struct PayPalVaultResultView: View {
 
-    @ObservedObject var paypalVaultViewModel: PayPalVaultViewModel
+    @ObservedObject var viewModel: PayPalVaultViewModel
 
     var body: some View {
-        switch paypalVaultViewModel.state.paypalVaultTokenResponse {
+        switch viewModel.state.paypalVaultTokenResponse {
         case .idle, .loading:
             EmptyView()
         case .loaded(let vaultResult):

Demo/Demo/SwiftUIComponents/PayPalVaultViews/PayPalVaultView.swift

@@ -23,7 +23,7 @@ struct PayPalVaultView: View {
                         .buttonStyle(RoundedBlueButtonStyle())
                         .padding()
                     }
-                    PayPalVaultResultView(paypalVaultViewModel: paypalVaultViewModel)
+                    PayPalVaultResultView(viewModel: paypalVaultViewModel)
                     if let paypalVaultResult = paypalVaultViewModel.state.paypalVaultToken {
                         CreatePaymentTokenView(
                             vaultViewModel: paypalVaultViewModel,