feat(router): add request_external_three_ds_authentication flag in payment_method_list_response (#4864)

Co-authored-by: hyperswitch-bot[bot] <148525504+hyperswitch-bot[bot]@users.noreply.github.com>

crates/api_models/src/payment_methods.rs

@@ -791,6 +791,10 @@ pub struct PaymentMethodListResponse {
 
     #[schema(value_type = Option<PaymentType>)]
     pub payment_type: Option<api_enums::PaymentType>,
+
+    /// flag to indicate whether to perform external 3ds authentication
+    #[schema(example = true)]
+    pub request_external_three_ds_authentication: bool,
 }
 
 #[derive(Eq, PartialEq, Hash, Debug, serde::Deserialize, ToSchema)]

crates/router/src/core/payment_methods/cards.rs

@@ -2572,6 +2572,10 @@ pub async fn list_payment_methods(
         });
     }
     let currency = payment_intent.as_ref().and_then(|pi| pi.currency);
+    let request_external_three_ds_authentication = payment_intent
+        .as_ref()
+        .and_then(|intent| intent.request_external_three_ds_authentication)
+        .unwrap_or(false);
     let merchant_surcharge_configs =
         if let Some((payment_attempt, payment_intent, business_profile)) = payment_attempt
             .as_ref()
@@ -2627,6 +2631,7 @@ pub async fn list_payment_methods(
                 .show_surcharge_breakup_screen
                 .unwrap_or_default(),
             currency,
+            request_external_three_ds_authentication,
         },
     ))
 }

openapi/openapi_spec.json

@@ -13471,7 +13471,8 @@
           "currency",
           "payment_methods",
           "mandate_payment",
-          "show_surcharge_breakup_screen"
+          "show_surcharge_breakup_screen",
+          "request_external_three_ds_authentication"
         ],
         "properties": {
           "redirect_url": {
@@ -13518,6 +13519,11 @@
               }
             ],
             "nullable": true
+          },
+          "request_external_three_ds_authentication": {
+            "type": "boolean",
+            "description": "flag to indicate whether to perform external 3ds authentication",
+            "example": true
           }
         }
       },