added fetchBillByBillId

src/main/java/com/billpaymentservice/bbps/dto/AdditionalInfoBill.java

@@ -0,0 +1,16 @@
+package com.billpaymentservice.bbps.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+@Getter
+@Setter
+@AllArgsConstructor
+@NoArgsConstructor
+public class AdditionalInfoBill {
+	   private String additionalInfoId;
+	   private String name;
+	   private String value;
+}

src/main/java/com/billpaymentservice/bbps/dto/BillerResponseBill.java

@@ -0,0 +1,24 @@
+package com.billpaymentservice.bbps.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
+public class BillerResponseBill {
+	private String billId;
+    private String amount;
+    private String billDate;
+    private String billNumber;
+    private String billPeriod;
+    private String custConvFee;
+    private String couCustConvFee;
+    private String dueDate;
+    private String customerName;
+    private boolean amountOption;
+    private Object tagList; // null in response, so keeping Object
+}

src/main/java/com/billpaymentservice/bbps/dto/CustomerParamBill.java

@@ -0,0 +1,16 @@
+package com.billpaymentservice.bbps.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+@Getter
+@Setter
+@AllArgsConstructor
+@NoArgsConstructor
+public class CustomerParamBill {
+	    private String name;
+	    private String value;
+	    private String type;
+}

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

@@ -0,0 +1,21 @@
+package com.billpaymentservice.bbps.dto.request;
+
+import jakarta.validation.constraints.NotNull;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+@Getter
+@Setter
+@AllArgsConstructor
+@NoArgsConstructor
+public class BillFetchByBillIdRequest extends BaseClass {
+    
+	@NotNull
+	private String billId;
+	private String tenantId;                 //                //M
+	private String digiledgeKey;           // M
+	private String agentId;   
+
+}

src/main/java/com/billpaymentservice/bbps/dto/response/BillDataResponse.java

@@ -0,0 +1,40 @@
+package com.billpaymentservice.bbps.dto.response;
+
+import java.util.List;
+
+import com.billpaymentservice.bbps.dto.AdditionalInfoBill;
+import com.billpaymentservice.bbps.dto.BillerResponseBill;
+import com.billpaymentservice.bbps.dto.CustomerParamBill;
+import com.billpaymentservice.bbps.dto.GeneralResp;
+import com.billpaymentservice.bbps.dto.GeneralResponse;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+@Getter
+@Setter
+@AllArgsConstructor
+@NoArgsConstructor
+@JsonIgnoreProperties(ignoreUnknown = true)
+public class BillDataResponse {
+	
+	    private GeneralResp genericResponse;
+	    private String billId;
+	    private String refId;
+	    private String billerId;
+	    private String status;
+	    private String actionType;
+	    private String userId;
+	    
+	    private BillerResponseBill billerResponse;   // nested object
+	    private List<AdditionalInfoBill> additionalInfo;  // array of objects
+	    private List<CustomerParamBill> customerParams;   // array of objects
+
+	    private String creationDate;
+	    private String modifiedDate;
+	    private long createdEpochDate;
+	    private long modifiedEpochDate;
+}