diff --git a/packages/server/src/api/controllers/Purchases/Bills.ts b/packages/server/src/api/controllers/Purchases/Bills.ts
index 2cd9e62de..9de79ecf7 100644
--- a/packages/server/src/api/controllers/Purchases/Bills.ts
+++ b/packages/server/src/api/controllers/Purchases/Bills.ts
@@ -303,7 +303,7 @@ export default class BillsController extends BaseController {
     try {
       const bill = await this.billsApplication.getBill(tenantId, billId);
 
-      return res.status(200).send(this.transfromToResponse({ bill }));
+      return res.status(200).send({ bill });
     } catch (error) {
       next(error);
     }
@@ -348,14 +348,11 @@ export default class BillsController extends BaseController {
     };
 
     try {
-      const { bills, pagination, filterMeta } =
-        await this.billsApplication.getBills(tenantId, filter);
-
-      return res.status(200).send({
-        bills: this.transfromToResponse(bills),
-        pagination: this.transfromToResponse(pagination),
-        filter_meta: this.transfromToResponse(filterMeta),
-      });
+      const billsWithPagination = await this.billsApplication.getBills(
+        tenantId,
+        filter
+      );
+      return res.status(200).send(billsWithPagination);
     } catch (error) {
       next(error);
     }
diff --git a/packages/server/src/api/controllers/Purchases/BillsPayments.ts b/packages/server/src/api/controllers/Purchases/BillsPayments.ts
index a663a3032..984ab6fba 100644
--- a/packages/server/src/api/controllers/Purchases/BillsPayments.ts
+++ b/packages/server/src/api/controllers/Purchases/BillsPayments.ts
@@ -158,15 +158,11 @@ export default class BillsPayments extends BaseController {
     const { tenantId } = req;
     const { vendorId } = this.matchedQueryData(req);
 
-    try {
-      const entries = await this.billPaymentsPages.getNewPageEntries(
-        tenantId,
-        vendorId
-      );
-      return res.status(200).send({
-        entries: this.transfromToResponse(entries),
-      });
-    } catch (error) {}
+    const entries = await this.billPaymentsPages.getNewPageEntries(
+      tenantId,
+      vendorId
+    );
+    return res.status(200).send({ entries });
   }
 
   /**
@@ -183,16 +179,12 @@ export default class BillsPayments extends BaseController {
     const { id: paymentReceiveId } = req.params;
 
     try {
-      const { billPayment, entries } =
+      const billPaymentsWithEditEntries =
         await this.billPaymentsPages.getBillPaymentEditPage(
           tenantId,
           paymentReceiveId
         );
-
-      return res.status(200).send({
-        bill_payment: this.transfromToResponse(billPayment),
-        entries: this.transfromToResponse(entries),
-      });
+      return res.status(200).send(billPaymentsWithEditEntries);
     } catch (error) {
       next(error);
     }
@@ -304,9 +296,7 @@ export default class BillsPayments extends BaseController {
         tenantId,
         billPaymentId
       );
-      return res.status(200).send({
-        bill_payment: this.transfromToResponse(billPayment),
-      });
+      return res.status(200).send({ billPayment });
     } catch (error) {
       next(error);
     }
@@ -359,17 +349,12 @@ export default class BillsPayments extends BaseController {
     };
 
     try {
-      const { billPayments, pagination, filterMeta } =
+      const billPaymentsWithPagination =
         await this.billPaymentsApplication.getBillPayments(
           tenantId,
           billPaymentsFilter
         );
-
-      return res.status(200).send({
-        bill_payments: this.transfromToResponse(billPayments),
-        pagination: this.transfromToResponse(pagination),
-        filter_meta: this.transfromToResponse(filterMeta),
-      });
+      return res.status(200).send(billPaymentsWithPagination);
     } catch (error) {
       next(error);
     }
diff --git a/packages/server/src/api/controllers/Sales/CreditNotes.ts b/packages/server/src/api/controllers/Sales/CreditNotes.ts
index 77b506c7d..4644b55c5 100644
--- a/packages/server/src/api/controllers/Sales/CreditNotes.ts
+++ b/packages/server/src/api/controllers/Sales/CreditNotes.ts
@@ -26,6 +26,7 @@ import GetCreditNoteAssociatedInvoicesToApply from '@/services/CreditNotes/GetCr
 import GetCreditNoteAssociatedAppliedInvoices from '@/services/CreditNotes/GetCreditNoteAssociatedAppliedInvoices';
 import GetRefundCreditTransaction from '@/services/CreditNotes/GetRefundCreditNoteTransaction';
 import GetCreditNotePdf from '../../../services/CreditNotes/GetCreditNotePdf';
+import { ACCEPT_TYPE } from '@/interfaces/Http';
 /**
  * Credit notes controller.
  * @service
@@ -293,7 +294,7 @@ export default class PaymentReceivesController extends BaseController {
     return [
       check('from_account_id').exists().isNumeric().toInt(),
       check('description').optional(),
-      
+
       check('amount').exists().isNumeric().toFloat(),
       check('exchange_rate').optional().isFloat({ gt: 0 }).toFloat(),
 
@@ -438,7 +439,7 @@ export default class PaymentReceivesController extends BaseController {
   };
 
   /**
-   * Retrieve the payment receive details.
+   * Retrieve the credit note details.
    * @param {Request} req
    * @param {Response} res
    * @param {NextFunction} next
@@ -451,38 +452,28 @@ export default class PaymentReceivesController extends BaseController {
     const { tenantId } = req;
     const { id: creditNoteId } = req.params;
 
-    try {
+    const accept = this.accepts(req);
+
+    const acceptType = accept.types([
+      ACCEPT_TYPE.APPLICATION_JSON,
+      ACCEPT_TYPE.APPLICATION_PDF,
+    ]);
+    if (ACCEPT_TYPE.APPLICATION_PDF === acceptType) {
+      const pdfContent = await this.creditNotePdf.getCreditNotePdf(
+        tenantId,
+        creditNoteId
+      );
+      res.set({
+        'Content-Type': 'application/pdf',
+        'Content-Length': pdfContent.length,
+      });
+      res.send(pdfContent);
+    } else {
       const creditNote = await this.getCreditNoteService.getCreditNote(
         tenantId,
         creditNoteId
       );
-      const ACCEPT_TYPE = {
-        APPLICATION_PDF: 'application/pdf',
-        APPLICATION_JSON: 'application/json',
-      };
-      // Response formatter.
-      res.format({
-        // Json content type.
-        [ACCEPT_TYPE.APPLICATION_JSON]: () => {
-          return res
-            .status(200)
-            .send({ credit_note: this.transfromToResponse(creditNote) });
-        },
-        // Pdf content type.
-        [ACCEPT_TYPE.APPLICATION_PDF]: async () => {
-          const pdfContent = await this.creditNotePdf.getCreditNotePdf(
-            tenantId,
-            creditNote
-          );
-          res.set({
-            'Content-Type': 'application/pdf',
-            'Content-Length': pdfContent.length,
-          });
-          res.send(pdfContent);
-        },
-      });
-    } catch (error) {
-      next(error);
+      return res.status(200).send({ creditNote });
     }
   };
 
diff --git a/packages/server/src/api/controllers/Sales/PaymentReceives.ts b/packages/server/src/api/controllers/Sales/PaymentReceives.ts
index 20e61fe3a..818fcb713 100644
--- a/packages/server/src/api/controllers/Sales/PaymentReceives.ts
+++ b/packages/server/src/api/controllers/Sales/PaymentReceives.ts
@@ -14,6 +14,7 @@ import DynamicListingService from '@/services/DynamicListing/DynamicListService'
 import { PaymentReceivesApplication } from '@/services/Sales/PaymentReceives/PaymentReceivesApplication';
 import CheckPolicies from '@/api/middleware/CheckPolicies';
 import { ServiceError } from '@/exceptions';
+import { ACCEPT_TYPE } from '@/interfaces/Http';
 
 @Service()
 export default class PaymentReceivesController extends BaseController {
@@ -348,17 +349,12 @@ export default class PaymentReceivesController extends BaseController {
     };
 
     try {
-      const { paymentReceives, pagination, filterMeta } =
+      const paymentsReceivedWithPagination =
         await this.paymentReceiveApplication.getPaymentReceives(
           tenantId,
           filter
         );
-
-      return res.status(200).send({
-        payment_receives: this.transfromToResponse(paymentReceives),
-        pagination: this.transfromToResponse(pagination),
-        filter_meta: this.transfromToResponse(filterMeta),
-      });
+      return res.status(200).send(paymentsReceivedWithPagination);
     } catch (error) {
       next(error);
     }
@@ -435,37 +431,34 @@ export default class PaymentReceivesController extends BaseController {
     const { tenantId } = req;
     const { id: paymentReceiveId } = req.params;
 
-    try {
-      const ACCEPT_TYPE = {
-        APPLICATION_PDF: 'application/pdf',
-        APPLICATION_JSON: 'application/json',
-      };
-      res.format({
-        [ACCEPT_TYPE.APPLICATION_JSON]: async () => {
-          const paymentReceive =
-            await this.paymentReceiveApplication.getPaymentReceive(
-              tenantId,
-              paymentReceiveId
-            );
-          return res.status(200).send({
-            payment_receive: paymentReceive,
-          });
-        },
-        [ACCEPT_TYPE.APPLICATION_PDF]: async () => {
-          const pdfContent =
-            await this.paymentReceiveApplication.getPaymentReceivePdf(
-              tenantId,
-              paymentReceiveId
-            );
-          res.set({
-            'Content-Type': 'application/pdf',
-            'Content-Length': pdfContent.length,
-          });
-          res.send(pdfContent);
-        },
+    const accept = this.accepts(req);
+
+    const acceptType = accept.types([
+      ACCEPT_TYPE.APPLICATION_JSON,
+      ACCEPT_TYPE.APPLICATION_PDF,
+    ]);
+    // Response in pdf format.
+    if (ACCEPT_TYPE.APPLICATION_PDF === acceptType) {
+      const pdfContent =
+        await this.paymentReceiveApplication.getPaymentReceivePdf(
+          tenantId,
+          paymentReceiveId
+        );
+      res.set({
+        'Content-Type': 'application/pdf',
+        'Content-Length': pdfContent.length,
+      });
+      res.send(pdfContent);
+      // Response in json format.
+    } else {
+      const paymentReceive =
+        await this.paymentReceiveApplication.getPaymentReceive(
+          tenantId,
+          paymentReceiveId
+        );
+      return res.status(200).send({
+        payment_receive: paymentReceive,
       });
-    } catch (error) {
-      next(error);
     }
   }
 
@@ -499,7 +492,7 @@ export default class PaymentReceivesController extends BaseController {
   };
 
   /**
-   *
+   * Retrieves the sms details of the given payment receive.
    * @param {Request} req
    * @param {Response} res
    * @param {NextFunction} next
@@ -588,10 +581,10 @@ export default class PaymentReceivesController extends BaseController {
 
   /**
    * Handles service errors.
-   * @param error
-   * @param req
-   * @param res
-   * @param next
+   * @param {Error} error
+   * @param {Request} req
+   * @param {Response} res
+   * @param {NextFunction} next
    */
   private handleServiceErrors(
     error: Error,
diff --git a/packages/server/src/api/controllers/Sales/SalesEstimates.ts b/packages/server/src/api/controllers/Sales/SalesEstimates.ts
index b34c1ccf2..e26b40c30 100644
--- a/packages/server/src/api/controllers/Sales/SalesEstimates.ts
+++ b/packages/server/src/api/controllers/Sales/SalesEstimates.ts
@@ -334,7 +334,6 @@ export default class SalesEstimatesController extends BaseController {
         tenantId,
         estimateId
       );
-
       return res.status(200).send({
         id: estimateId,
         message: 'The sale estimate has been approved successfully.',
@@ -363,7 +362,6 @@ export default class SalesEstimatesController extends BaseController {
         tenantId,
         estimateId
       );
-
       return res.status(200).send({
         id: estimateId,
         message: 'The sale estimate has been rejected successfully.',
@@ -383,33 +381,30 @@ export default class SalesEstimatesController extends BaseController {
     const { id: estimateId } = req.params;
     const { tenantId } = req;
 
-    try {
-      // Response formatter.
-      res.format({
-        // JSON content type.
-        [ACCEPT_TYPE.APPLICATION_JSON]: async () => {
-          const estimate = await this.saleEstimatesApplication.getSaleEstimate(
-            tenantId,
-            estimateId
-          );
-          return res.status(200).send({ estimate });
-        },
-        // PDF content type.
-        [ACCEPT_TYPE.APPLICATION_PDF]: async () => {
-          const pdfContent =
-            await this.saleEstimatesApplication.getSaleEstimatePdf(
-              tenantId,
-              estimateId
-            );
-          res.set({
-            'Content-Type': 'application/pdf',
-            'Content-Length': pdfContent.length,
-          });
-          res.send(pdfContent);
-        },
+    const accept = this.accepts(req);
+
+    const acceptType = accept.types([
+      ACCEPT_TYPE.APPLICATION_JSON,
+      ACCEPT_TYPE.APPLICATION_PDF,
+    ]);
+    // Retrieves estimate in pdf format.
+    if (ACCEPT_TYPE.APPLICATION_PDF == acceptType) {
+      const pdfContent = await this.saleEstimatesApplication.getSaleEstimatePdf(
+        tenantId,
+        estimateId
+      );
+      res.set({
+        'Content-Type': 'application/pdf',
+        'Content-Length': pdfContent.length,
       });
-    } catch (error) {
-      next(error);
+      res.send(pdfContent);
+      // Retrieves estimates in json format.
+    } else {
+      const estimate = await this.saleEstimatesApplication.getSaleEstimate(
+        tenantId,
+        estimateId
+      );
+      return res.status(200).send({ estimate });
     }
   }
 
@@ -427,22 +422,11 @@ export default class SalesEstimatesController extends BaseController {
       pageSize: 12,
       ...this.matchedQueryData(req),
     };
-
     try {
-      const { salesEstimates, pagination, filterMeta } =
+      const salesEstimatesWithPagination =
         await this.saleEstimatesApplication.getSaleEstimates(tenantId, filter);
 
-      res.format({
-        [ACCEPT_TYPE.APPLICATION_JSON]: () => {
-          return res.status(200).send(
-            this.transfromToResponse({
-              salesEstimates,
-              pagination,
-              filterMeta,
-            })
-          );
-        },
-      });
+      return res.status(200).send(salesEstimatesWithPagination);
     } catch (error) {
       next(error);
     }
diff --git a/packages/server/src/api/controllers/Sales/SalesInvoices.ts b/packages/server/src/api/controllers/Sales/SalesInvoices.ts
index c66d2dae1..b45604e43 100644
--- a/packages/server/src/api/controllers/Sales/SalesInvoices.ts
+++ b/packages/server/src/api/controllers/Sales/SalesInvoices.ts
@@ -14,11 +14,8 @@ import {
 } from '@/interfaces';
 import CheckPolicies from '@/api/middleware/CheckPolicies';
 import { SaleInvoiceApplication } from '@/services/Sales/Invoices/SaleInvoicesApplication';
+import { ACCEPT_TYPE } from '@/interfaces/Http';
 
-const ACCEPT_TYPE = {
-  APPLICATION_PDF: 'application/pdf',
-  APPLICATION_JSON: 'application/json',
-};
 @Service()
 export default class SaleInvoicesController extends BaseController {
   @Inject()
@@ -403,7 +400,6 @@ export default class SaleInvoicesController extends BaseController {
         saleInvoiceId,
         user
       );
-
       return res.status(200).send({
         id: saleInvoiceId,
         message: 'The sale invoice has been deleted successfully.',
@@ -422,30 +418,32 @@ export default class SaleInvoicesController extends BaseController {
     const { id: saleInvoiceId } = req.params;
     const { tenantId, user } = req;
 
-    // Response formatter.
-    return res.format({
-      // JSON content type.
-      [ACCEPT_TYPE.APPLICATION_JSON]: async () => {
-        const saleInvoice = await this.saleInvoiceApplication.getSaleInvoice(
-          tenantId,
-          saleInvoiceId,
-          user
-        );
-        return res.status(200).send(this.transfromToResponse({ saleInvoice }));
-      },
-      // PDF content type.
-      [ACCEPT_TYPE.APPLICATION_PDF]: async () => {
-        const pdfContent = await this.saleInvoiceApplication.saleInvoicePdf(
-          tenantId,
-          saleInvoiceId
-        );
-        res.set({
-          'Content-Type': 'application/pdf',
-          'Content-Length': pdfContent.length,
-        });
-        res.send(pdfContent);
-      },
-    });
+    const accept = this.accepts(req);
+
+    const acceptType = accept.types([
+      ACCEPT_TYPE.APPLICATION_JSON,
+      ACCEPT_TYPE.APPLICATION_PDF,
+    ]);
+    // Retrieves invoice in pdf format.
+    if (ACCEPT_TYPE.APPLICATION_PDF == acceptType) {
+      const pdfContent = await this.saleInvoiceApplication.saleInvoicePdf(
+        tenantId,
+        saleInvoiceId
+      );
+      res.set({
+        'Content-Type': 'application/pdf',
+        'Content-Length': pdfContent.length,
+      });
+      res.send(pdfContent);
+      // Retrieves invoice in json format.
+    } else {
+      const saleInvoice = await this.saleInvoiceApplication.getSaleInvoice(
+        tenantId,
+        saleInvoiceId,
+        user
+      );
+      return res.status(200).send({ saleInvoice });
+    }
   }
   /**
    * Retrieve paginated sales invoices with custom view metadata.
@@ -467,14 +465,10 @@ export default class SaleInvoicesController extends BaseController {
       ...this.matchedQueryData(req),
     };
     try {
-      const { salesInvoices, filterMeta, pagination } =
+      const salesInvoicesWithPagination =
         await this.saleInvoiceApplication.getSaleInvoices(tenantId, filter);
 
-      return res.status(200).send({
-        sales_invoices: this.transfromToResponse(salesInvoices),
-        pagination: this.transfromToResponse(pagination),
-        filter_meta: this.transfromToResponse(filterMeta),
-      });
+      return res.status(200).send(salesInvoicesWithPagination);
     } catch (error) {
       next(error);
     }
@@ -501,9 +495,7 @@ export default class SaleInvoicesController extends BaseController {
           tenantId,
           customerId
         );
-      return res.status(200).send({
-        sales_invoices: this.transfromToResponse(salesInvoices),
-      });
+      return res.status(200).send({ salesInvoices });
     } catch (error) {
       next(error);
     }
@@ -531,7 +523,6 @@ export default class SaleInvoicesController extends BaseController {
         invoiceId,
         writeoffDTO
       );
-
       return res.status(200).send({
         id: saleInvoice.id,
         message: 'The given sale invoice has been written-off successfully.',
diff --git a/packages/server/src/api/controllers/Sales/SalesReceipts.ts b/packages/server/src/api/controllers/Sales/SalesReceipts.ts
index 6151561f8..04edfd9f8 100644
--- a/packages/server/src/api/controllers/Sales/SalesReceipts.ts
+++ b/packages/server/src/api/controllers/Sales/SalesReceipts.ts
@@ -3,12 +3,17 @@ import { body, check, param, query } from 'express-validator';
 import { Inject, Service } from 'typedi';
 import asyncMiddleware from '@/api/middleware/asyncMiddleware';
 import BaseController from '../BaseController';
-import { ISaleReceiptDTO, SaleReceiptMailOpts, SaleReceiptMailOptsDTO } from '@/interfaces/SaleReceipt';
+import {
+  ISaleReceiptDTO,
+  SaleReceiptMailOpts,
+  SaleReceiptMailOptsDTO,
+} from '@/interfaces/SaleReceipt';
 import { ServiceError } from '@/exceptions';
 import DynamicListingService from '@/services/DynamicListing/DynamicListService';
 import CheckPolicies from '@/api/middleware/CheckPolicies';
 import { AbilitySubject, SaleReceiptAction } from '@/interfaces';
 import { SaleReceiptApplication } from '@/services/Sales/Receipts/SaleReceiptApplication';
+import { ACCEPT_TYPE } from '@/interfaces/Http';
 
 @Service()
 export default class SalesReceiptsController extends BaseController {
@@ -62,9 +67,7 @@ export default class SalesReceiptsController extends BaseController {
     );
     router.get(
       '/:id/mail',
-      [
-        ...this.specificReceiptValidationSchema,
-      ],
+      [...this.specificReceiptValidationSchema],
       this.validationResult,
       asyncMiddleware(this.getSaleReceiptMail.bind(this)),
       this.handleServiceErrors
@@ -228,7 +231,6 @@ export default class SalesReceiptsController extends BaseController {
         tenantId,
         saleReceiptId
       );
-
       return res.status(200).send({
         id: saleReceiptId,
         message: 'Sale receipt has been deleted successfully.',
@@ -317,15 +319,10 @@ export default class SalesReceiptsController extends BaseController {
       ...this.matchedQueryData(req),
     };
     try {
-      const { data, pagination, filterMeta } =
+      const salesReceiptsWithPagination =
         await this.saleReceiptsApplication.getSaleReceipts(tenantId, filter);
 
-      const response = this.transfromToResponse({
-        data,
-        pagination,
-        filterMeta,
-      });
-      return res.status(200).send(response);
+      return res.status(200).send(salesReceiptsWithPagination);
     } catch (error) {
       next(error);
     }
@@ -337,34 +334,34 @@ export default class SalesReceiptsController extends BaseController {
    * @param {Response} res
    * @param {NextFunction} next
    */
-  public async getSaleReceipt(req: Request, res: Response, next: NextFunction) {
+  public async getSaleReceipt(req: Request, res: Response) {
     const { id: saleReceiptId } = req.params;
     const { tenantId } = req;
 
-    try {
-      res.format({
-        'application/json': async () => {
-          const saleReceipt = await this.saleReceiptsApplication.getSaleReceipt(
-            tenantId,
-            saleReceiptId
-          );
-          return res.status(200).send({ saleReceipt });
-        },
-        'application/pdf': async () => {
-          const pdfContent =
-            await this.saleReceiptsApplication.getSaleReceiptPdf(
-              tenantId,
-              saleReceiptId
-            );
-          res.set({
-            'Content-Type': 'application/pdf',
-            'Content-Length': pdfContent.length,
-          });
-          res.send(pdfContent);
-        },
+    const accept = this.accepts(req);
+
+    const acceptType = accept.types([
+      ACCEPT_TYPE.APPLICATION_JSON,
+      ACCEPT_TYPE.APPLICATION_PDF,
+    ]);
+    // Retrieves receipt in pdf format.
+    if (ACCEPT_TYPE.APPLICATION_PDF == acceptType) {
+      const pdfContent = await this.saleReceiptsApplication.getSaleReceiptPdf(
+        tenantId,
+        saleReceiptId
+      );
+      res.set({
+        'Content-Type': 'application/pdf',
+        'Content-Length': pdfContent.length,
       });
-    } catch (error) {
-      next(error);
+      res.send(pdfContent);
+      // Retrieves receipt in json format.
+    } else {
+      const saleReceipt = await this.saleReceiptsApplication.getSaleReceipt(
+        tenantId,
+        saleReceiptId
+      );
+      return res.status(200).send({ saleReceipt });
     }
   }
 
diff --git a/packages/server/src/services/CreditNotes/GetCreditNotePdf.ts b/packages/server/src/services/CreditNotes/GetCreditNotePdf.ts
index c34dfd330..c54c8096e 100644
--- a/packages/server/src/services/CreditNotes/GetCreditNotePdf.ts
+++ b/packages/server/src/services/CreditNotes/GetCreditNotePdf.ts
@@ -1,6 +1,7 @@
 import { Inject, Service } from 'typedi';
 import { ChromiumlyTenancy } from '../ChromiumlyTenancy/ChromiumlyTenancy';
 import { TemplateInjectable } from '../TemplateInjectable/TemplateInjectable';
+import GetCreditNote from './GetCreditNote';
 
 @Service()
 export default class GetCreditNotePdf {
@@ -10,11 +11,19 @@ export default class GetCreditNotePdf {
   @Inject()
   private templateInjectable: TemplateInjectable;
 
+  @Inject()
+  private getCreditNoteService: GetCreditNote;
+
   /**
    * Retrieve sale invoice pdf content.
-   * @param {} saleInvoice -
+   * @param {number} tenantId - Tenant id.
+   * @param {number} creditNoteId - Credit note id.
    */
-  public async getCreditNotePdf(tenantId: number, creditNote) {
+  public async getCreditNotePdf(tenantId: number, creditNoteId: number) {
+    const creditNote = await this.getCreditNoteService.getCreditNote(
+      tenantId,
+      creditNoteId
+    );
     const htmlContent = await this.templateInjectable.render(
       tenantId,
       'modules/credit-note-standard',