Return payment link in API response

src/main/kotlin/com/android/trisolarisserver/controller/PayuPaymentLinksController.kt

@@ -10,6 +10,7 @@ import com.android.trisolarisserver.repo.PaymentRepo
 import com.android.trisolarisserver.repo.PayuPaymentLinkSettingsRepo
 import com.android.trisolarisserver.repo.RoomStayRepo
 import com.android.trisolarisserver.security.MyPrincipal
+import com.fasterxml.jackson.databind.ObjectMapper
 import org.springframework.http.HttpEntity
 import org.springframework.http.HttpHeaders
 import org.springframework.http.HttpStatus
@@ -32,7 +33,8 @@ class PayuPaymentLinksController(
     private val roomStayRepo: RoomStayRepo,
     private val paymentRepo: PaymentRepo,
     private val settingsRepo: PayuPaymentLinkSettingsRepo,
-    private val restTemplate: RestTemplate
+    private val restTemplate: RestTemplate,
+    private val objectMapper: ObjectMapper
 ) {
 
     @PostMapping("/link")
@@ -126,9 +128,11 @@ class PayuPaymentLinksController(
             throw ResponseStatusException(HttpStatus.BAD_GATEWAY, "PayU request failed")
         }
 
+        val paymentLink = extractPaymentLink(responseBody)
         return PayuPaymentLinkCreateResponse(
             amount = amountLong ?: pending,
             currency = booking.property.currency,
+            paymentLink = paymentLink,
             payuResponse = responseBody
         )
     }
@@ -141,6 +145,17 @@ class PayuPaymentLinksController(
         }
     }
 
+    private fun extractPaymentLink(body: String): String? {
+        if (body.isBlank()) return null
+        return try {
+            val node = objectMapper.readTree(body)
+            val link = node.path("result").path("paymentLink").asText(null)
+            link?.takeIf { it.isNotBlank() }
+        } catch (_: Exception) {
+            null
+        }
+    }
+
     private fun buildReturnUrl(propertyId: UUID, success: Boolean): String {
         val path = if (success) "success" else "failure"
         return "https://api.hoteltrisolaris.in/properties/$propertyId/payu/return/$path"

src/main/kotlin/com/android/trisolarisserver/controller/dto/PayuDtos.kt

@@ -80,5 +80,6 @@ data class PayuPaymentLinkCreateRequest(
 data class PayuPaymentLinkCreateResponse(
     val amount: Long,
     val currency: String,
+    val paymentLink: String?,
     val payuResponse: String
 )