feat(router): Add customer_list_saved_payment_methods endpoint to OLAP (#7241)

crates/router/src/core/payment_methods.rs

@@ -1264,6 +1264,23 @@ pub async fn list_payment_methods_for_session(
     ))
 }
 
+#[cfg(all(feature = "v2", feature = "olap"))]
+#[instrument(skip_all)]
+pub async fn list_saved_payment_methods_for_customer(
+    state: SessionState,
+    merchant_account: domain::MerchantAccount,
+    key_store: domain::MerchantKeyStore,
+    customer_id: id_type::GlobalCustomerId,
+) -> RouterResponse<api::CustomerPaymentMethodsListResponse> {
+    let customer_payment_methods =
+        list_customer_payment_method_core(&state, &merchant_account, &key_store, &customer_id)
+            .await?;
+
+    Ok(hyperswitch_domain_models::api::ApplicationResponse::Json(
+        customer_payment_methods,
+    ))
+}
+
 #[cfg(feature = "v2")]
 /// Container for the inputs required for the required fields
 struct RequiredFieldsInput {
@@ -1641,11 +1658,7 @@ fn get_pm_list_context(
     Ok(payment_method_retrieval_context)
 }
 
-#[cfg(all(
-    feature = "v2",
-    feature = "payment_methods_v2",
-    feature = "customer_v2"
-))]
+#[cfg(all(feature = "v2", feature = "olap"))]
 pub async fn list_customer_payment_method_core(
     state: &SessionState,
     merchant_account: &domain::MerchantAccount,

crates/router/src/routes/app.rs

@@ -1038,6 +1038,10 @@ impl Customers {
                         .route(web::get().to(customers::customers_retrieve))
                         .route(web::delete().to(customers::customers_delete)),
                 )
+                .service(
+                    web::resource("/{id}/saved-payment-methods")
+                        .route(web::get().to(payment_methods::list_customer_payment_method_api)),
+                )
         }
         route
     }

crates/router/src/routes/payment_methods.rs

@@ -581,6 +581,43 @@ pub async fn initiate_pm_collect_link_flow(
     .await
 }
 
+#[cfg(all(feature = "v2", feature = "olap"))]
+#[instrument(skip_all, fields(flow = ?Flow::CustomerPaymentMethodsList))]
+pub async fn list_customer_payment_method_api(
+    state: web::Data<AppState>,
+    customer_id: web::Path<id_type::GlobalCustomerId>,
+    req: HttpRequest,
+    query_payload: web::Query<api_models::payment_methods::PaymentMethodListRequest>,
+) -> HttpResponse {
+    let flow = Flow::CustomerPaymentMethodsList;
+    let payload = query_payload.into_inner();
+    let customer_id = customer_id.into_inner();
+
+    Box::pin(api::server_wrap(
+        flow,
+        state,
+        &req,
+        payload,
+        |state, auth: auth::AuthenticationData, _, _| {
+            payment_methods_routes::list_saved_payment_methods_for_customer(
+                state,
+                auth.merchant_account,
+                auth.key_store,
+                customer_id.clone(),
+            )
+        },
+        auth::auth_type(
+            &auth::HeaderAuth(auth::ApiKeyAuth),
+            &auth::JWTAuth {
+                permission: Permission::MerchantCustomerRead,
+            },
+            req.headers(),
+        ),
+        api_locking::LockAction::NotApplicable,
+    ))
+    .await
+}
+
 #[cfg(all(any(feature = "v1", feature = "v2"), not(feature = "customer_v2")))]
 /// Generate a form link for collecting payment methods for a customer
 #[instrument(skip_all, fields(flow = ?Flow::PaymentMethodCollectLink))]