add: check unique trx id error

src/transaction/transaction.service.ts

@@ -444,6 +444,22 @@ export class TransactionService {
       await this.connection.transaction(async (manager) => {
         const transactionData = new Transactions();
 
+        const partnerExist = await this.transactionRepository.findOne({
+          where: {
+            partner_trx_id: orderTransactionDto.trx_id,
+          }
+        });
+
+        if (partnerExist) {
+          throw new HttpException(
+            {
+              statusCode: HttpStatus.BAD_REQUEST,
+              error: 'Previous transaction with the same ID have been made. Please contact administrator for more information.',
+            },
+            HttpStatus.BAD_REQUEST
+          );
+        }
+
         transactionData.id = uuid.v4();
         transactionData.amount =
             product_price.mark_up_price + product_price.price;
@@ -778,6 +794,22 @@ export class TransactionService {
         await this.connection.transaction(async (manager) => {
           const transactionData = new Transactions();
 
+          const partnerExist = await this.transactionRepository.findOne({
+            where: {
+              partner_trx_id: orderTransactionDto.trx_id,
+            }
+          });
+  
+          if (partnerExist) {
+            throw new HttpException(
+              {
+                statusCode: HttpStatus.BAD_REQUEST,
+                error: 'Previous transaction with the same ID have been made. Please contact administrator for more information.',
+              },
+              HttpStatus.BAD_REQUEST
+            );
+          }
+  
           transactionData.id = uuid.v4();
           transactionData.amount =
               product_price.mark_up_price + product_price.price;