diff --git a/src/app.ts b/src/app.ts
index dd46728..3303a31 100644
--- a/src/app.ts
+++ b/src/app.ts
@@ -133,6 +133,7 @@ class App {
      * configure body parser
      */
     app.use(express.json());
+    app.use(express.urlencoded({ extended: true }));
 
     /**
      * configure morgan for http logging
diff --git a/src/modules/payment/DTO/verifyOnlinePayment.dto.ts b/src/modules/payment/DTO/verifyOnlinePayment.dto.ts
index 86d7f71..62f8211 100644
--- a/src/modules/payment/DTO/verifyOnlinePayment.dto.ts
+++ b/src/modules/payment/DTO/verifyOnlinePayment.dto.ts
@@ -1,14 +1,68 @@
+import { Expose } from "class-transformer";
+import { IsNotEmpty, IsString } from "class-validator";
+
+import { ApiProperty } from "../../../common/decorator/swggerDocs";
+
 export class VerifyOnlinePaymentDTO {
+  @Expose()
+  @IsString()
+  @ApiProperty({ type: "string", description: "Merchant ID", example: "123456789" })
   MID: string;
+
+  @Expose()
+  @IsString()
+  @ApiProperty({ type: "string", description: "Transaction state", example: "OK" })
   State: string;
+
+  @Expose()
+  @IsNotEmpty()
+  @IsString()
+  @ApiProperty({ type: "string", description: "Transaction status", example: "OK" })
   Status: string;
+
+  @Expose()
+  @IsString()
+  @ApiProperty({ type: "string", description: "Retrieval Reference Number", example: "123456789012" })
   RRN: string;
+
+  @Expose()
+  @IsNotEmpty()
+  @IsString()
+  @ApiProperty({ type: "string", description: "Reference number", example: "123456789012" })
   RefNum: string;
+
+  @Expose()
+  @IsString()
+  @ApiProperty({ type: "string", description: "Reservation number", example: "123456" })
   ResNum: string;
+
+  @Expose()
+  @IsString()
+  @ApiProperty({ type: "string", description: "Terminal ID", example: "12345678" })
   TerminalId: string;
+
+  @Expose()
+  @IsString()
+  @ApiProperty({ type: "string", description: "Trace number", example: "123456" })
   TraceNo: string;
+
+  @Expose()
+  @IsString()
+  @ApiProperty({ type: "string", description: "Transaction amount", example: "10000" })
   Amount: string;
+
+  @Expose()
+  @IsString()
+  @ApiProperty({ type: "string", description: "Transaction wage", example: "0" })
   Wage: string;
+
+  @Expose()
+  @IsString()
+  @ApiProperty({ type: "string", description: "Secure PAN", example: "123456******7890" })
   SecurePan: string;
+
+  @Expose()
+  @IsString()
+  @ApiProperty({ type: "string", description: "Hashed card number", example: "hashed_value" })
   HashedCardNumber: string;
 }
diff --git a/src/modules/payment/payment.controller.ts b/src/modules/payment/payment.controller.ts
index 27a91c9..01af650 100644
--- a/src/modules/payment/payment.controller.ts
+++ b/src/modules/payment/payment.controller.ts
@@ -12,6 +12,7 @@ import { BaseController } from "../../common/base/controller";
 import { ApiAuth, ApiModel, ApiOperation, ApiParam, ApiQuery, ApiResponse, ApiTags } from "../../common/decorator/swggerDocs";
 import { GatewayProvider } from "../../common/enums/payment.enum";
 import { Guard } from "../../core/middlewares/guard.middleware";
+import { ValidationMiddleware } from "../../core/middlewares/validator.middleware";
 import { IOCTYPES } from "../../IOC/ioc.types";
 import { verifyPaymentTemplate } from "../../template/payment";
 import { verifyPRPaymentTemplate } from "../../template/PRPayment";
@@ -110,7 +111,7 @@ class PaymentController extends BaseController {
   @ApiOperation("verify a payment for current session user for cartCheckout (method post for SEP)")
   @ApiResponse("successful", HttpStatus.Ok)
   @ApiParam("gateway", "the name of api gateway", true)
-  @httpPost("/verify/:gateway/cart")
+  @httpPost("/verify/:gateway/cart", ValidationMiddleware.validateInput(VerifyOnlinePaymentDTO))
   public async VerifyCartCheckoutPost(
     @requestParam("gateway") gateway: string,
     @response() res: Response,