fix(payment_link): added expires_on in payment response (#3332)

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

Author: sahkal

crates/api_models/src/payments.rs

@@ -2277,6 +2277,11 @@ pub struct PaymentsResponse {
     /// List of incremental authorizations happened to the payment
     pub incremental_authorizations: Option<Vec<IncrementalAuthorizationResponse>>,
 
+    /// Date Time expiry of the payment
+    #[schema(example = "2022-09-10T10:11:12Z")]
+    #[serde(default, with = "common_utils::custom_serde::iso8601::option")]
+    pub expires_on: Option<PrimitiveDateTime>,
+
     /// Payment Fingerprint
     pub fingerprint: Option<String>,
 }

crates/router/src/core/payments/transformers.rs

@@ -709,6 +709,7 @@ where
                         .set_fingerprint(payment_intent.fingerprint_id)
                         .set_authorization_count(payment_intent.authorization_count)
                         .set_incremental_authorizations(incremental_authorizations_response)
+                        .set_expires_on(payment_intent.session_expiry)
                         .to_owned(),
                     headers,
                 ))
@@ -775,6 +776,7 @@ where
                 incremental_authorization_allowed: payment_intent.incremental_authorization_allowed,
                 authorization_count: payment_intent.authorization_count,
                 incremental_authorizations: incremental_authorizations_response,
+                expires_on: payment_intent.session_expiry,
                 ..Default::default()
             },
             headers,

openapi/openapi_spec.json

@@ -10948,6 +10948,13 @@
             "description": "List of incremental authorizations happened to the payment",
             "nullable": true
           },
+          "expires_on": {
+            "type": "string",
+            "format": "date-time",
+            "description": "Date Time expiry of the payment",
+            "example": "2022-09-10T10:11:12Z",
+            "nullable": true
+          },
           "fingerprint": {
             "type": "string",
             "description": "Payment Fingerprint",