imroved webbased datasaved

src/main/java/com/billpaymentservice/bbps/dto/request/CallbackRequest.java

@@ -1,8 +1,13 @@
 package com.billpaymentservice.bbps.dto.request;
 
+import jakarta.validation.constraints.NotBlank;
+
 public class CallbackRequest {
+	@NotBlank(message = "mid is mandatory")
     private String mid;
+	@NotBlank(message = "data is mandatory")
     private String data;
+	@NotBlank(message = "signature is mandatory")
     private String signature;
 
     public String getMid() {

src/main/java/com/billpaymentservice/bbps/dto/request/PaymentStartUserRequest.java

@@ -2,6 +2,7 @@ package com.billpaymentservice.bbps.dto.request;
 
 import java.io.Serializable;
 
+import jakarta.validation.constraints.NotBlank;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
@@ -13,14 +14,21 @@ import lombok.Setter;
 @AllArgsConstructor
 // DTO representing the user request payload described by the user
 public class PaymentStartUserRequest extends BaseClass implements Serializable {
+	@NotBlank(message = "amount can not be null")
     private String amount;
-    private String currency;
-    private String emailId;
+	@NotBlank(message = "currency can not be null")
+    String currency;
+    @NotBlank(message = "customerVpa can not be null")
     private String customerVpa;
-    private String mobileNo;
-    private String respUrl;
+    @NotBlank(message = "txnReqType can not be null")
     private String txnReqType;
+    @NotBlank(message = "udf1(Latitude) can not be null")
+    private String udf1;
+    @NotBlank(message = "udf2(Longitude) can not be null")
+    private String udf2;
+    private String emailId;
+    private String mobileNo;
     private String name;
 
-    
+
 }