Call share endpoint in FC for Panther

Author: mats-stripe

StripeFinancialConnections/StripeFinancialConnections/Source/API Bindings/FinancialConnectionsAPIClient.swift

@@ -219,6 +219,14 @@ protocol FinancialConnectionsAPI {
         bankAccountId: String
     ) -> Future<FinancialConnectionsPaymentDetails>
 
+    // TODO: Figure out return type for this request.
+    // We'll need to sort out the down-scoped client secret first.
+    func sharePaymentDetails(
+        consumerSessionClientSecret: String,
+        paymentDetailsId: String,
+        expectedPaymentMethodType: String
+    ) -> Future<FinancialConnectionsPaymentMethod>
+
     func paymentMethods(
         consumerSessionClientSecret: String,
         paymentDetailsId: String
@@ -944,6 +952,27 @@ extension FinancialConnectionsAPIClient: FinancialConnectionsAPI {
         )
     }
 
+    func sharePaymentDetails(
+        consumerSessionClientSecret: String,
+        paymentDetailsId: String,
+        expectedPaymentMethodType: String
+    ) -> Future<FinancialConnectionsPaymentMethod> {
+        let parameters: [String: Any] = [
+            "request_surface": requestSurface,
+            "id": paymentDetailsId,
+            "credentials": [
+                "consumer_session_client_secret": consumerSessionClientSecret
+            ],
+            "expected_payment_method_type": expectedPaymentMethodType,
+            "expand": ["payment_method"],
+        ]
+        return post(
+            resource: APIEndpointSharePaymentDetails,
+            parameters: parameters,
+            useConsumerPublishableKeyIfNeeded: false
+        )
+    }
+
     func paymentMethods(
         consumerSessionClientSecret: String,
         paymentDetailsId: String
@@ -995,4 +1024,5 @@ private let APIEndpointPollAccountNumbers = "link_account_sessions/poll_account_
 private let APIEndpointLinkAccountsSignUp = "consumers/accounts/sign_up"
 private let APIEndpointAttachLinkConsumerToLinkAccountSession = "consumers/attach_link_consumer_to_link_account_session"
 private let APIEndpointPaymentDetails = "consumers/payment_details"
+private let APIEndpointSharePaymentDetails = "consumers/payment_details/share"
 private let APIEndpointPaymentMethods = "payment_methods"

StripeFinancialConnections/StripeFinancialConnections/Source/API Bindings/Models/FinancialConnectionsSessionManifest.swift

@@ -126,6 +126,11 @@ struct FinancialConnectionsSessionManifest: Decodable {
         !livemode
     }
 
+    var isPantherPayment: Bool {
+        let isLinkPaymentMethod = paymentMethodType == .link
+        return isProductInstantDebits && isLinkPaymentMethod
+    }
+
     init(
         accountholderCustomerEmailAddress: String? = nil,
         accountholderIsLinkConsumer: Bool? = nil,

StripeFinancialConnections/StripeFinancialConnections/Source/Native/NativeFlowController.swift

@@ -513,10 +513,18 @@ extension NativeFlowController {
             }
 
             bankAccountDetails = paymentDetails.redactedPaymentDetails.bankAccountDetails
-            return self.dataManager.createPaymentMethod(
-                consumerSessionClientSecret: consumerSession.clientSecret,
-                paymentDetailsId: paymentDetails.redactedPaymentDetails.id
-            )
+            if self.dataManager.manifest.isPantherPayment {
+                return self.dataManager.apiClient.sharePaymentDetails(
+                    consumerSessionClientSecret: consumerSession.clientSecret,
+                    paymentDetailsId: paymentDetails.redactedPaymentDetails.id,
+                    expectedPaymentMethodType: "card"
+                )
+            } else {
+                return self.dataManager.createPaymentMethod(
+                    consumerSessionClientSecret: consumerSession.clientSecret,
+                    paymentDetailsId: paymentDetails.redactedPaymentDetails.id
+                )
+            }
         }
         .observe { result in
             switch result {
@@ -801,7 +809,7 @@ extension NativeFlowController: ManualEntryViewControllerDelegate {
         // to the Link signup/save call later in the flow. We don't need them anymore since we know
         // they've failed us in some way at this point.
         dataManager.linkedAccounts = nil
-        
+
         dataManager.paymentAccountResource = paymentAccountResource
         dataManager.accountNumberLast4 = accountNumberLast4