feat: implement standardized error handling for WhatsApp API responses

src/api/routes/business.router.ts

@@ -3,6 +3,7 @@ import { NumberDto } from '@api/dto/chat.dto';
 import { businessController } from '@api/server.module';
 import { catalogSchema, collectionsSchema } from '@validate/validate.schema';
 import { RequestHandler, Router } from 'express';
+import { createMetaErrorResponse } from '@utils/errorResponse';
 
 import { HttpStatus } from './index.router';
 
@@ -11,27 +12,45 @@ export class BusinessRouter extends RouterBroker {
     super();
     this.router
       .post(this.routerPath('getCatalog'), ...guards, async (req, res) => {
-        const response = await this.dataValidate<NumberDto>({
-          request: req,
-          schema: catalogSchema,
-          ClassRef: NumberDto,
-          execute: (instance, data) => businessController.fetchCatalog(instance, data),
-        });
+        try {
+          const response = await this.dataValidate<NumberDto>({
+            request: req,
+            schema: catalogSchema,
+            ClassRef: NumberDto,
+            execute: (instance, data) => businessController.fetchCatalog(instance, data),
+          });
 
-        return res.status(HttpStatus.OK).json(response);
+          return res.status(HttpStatus.OK).json(response);
+        } catch (error) {
+          // Log error for debugging
+          console.error('Business catalog error:', error);
+          
+          // Use utility function to create standardized error response
+          const errorResponse = createMetaErrorResponse(error, 'business_catalog');
+          return res.status(errorResponse.status).json(errorResponse);
+        }
       })
 
       .post(this.routerPath('getCollections'), ...guards, async (req, res) => {
-        const response = await this.dataValidate<NumberDto>({
-          request: req,
-          schema: collectionsSchema,
-          ClassRef: NumberDto,
-          execute: (instance, data) => businessController.fetchCollections(instance, data),
-        });
+        try {
+          const response = await this.dataValidate<NumberDto>({
+            request: req,
+            schema: collectionsSchema,
+            ClassRef: NumberDto,
+            execute: (instance, data) => businessController.fetchCollections(instance, data),
+          });
 
-        return res.status(HttpStatus.OK).json(response);
+          return res.status(HttpStatus.OK).json(response);
+        } catch (error) {
+          // Log error for debugging
+          console.error('Business collections error:', error);
+          
+          // Use utility function to create standardized error response
+          const errorResponse = createMetaErrorResponse(error, 'business_collections');
+          return res.status(errorResponse.status).json(errorResponse);
+        }
       });
   }
 
   public readonly router: Router = Router();
-}
+}

src/api/routes/template.router.ts

@@ -5,6 +5,7 @@ import { templateController } from '@api/server.module';
 import { ConfigService } from '@config/env.config';
 import { instanceSchema, templateSchema } from '@validate/validate.schema';
 import { RequestHandler, Router } from 'express';
+import { createMetaErrorResponse } from '@utils/errorResponse';
 
 import { HttpStatus } from './index.router';
 
@@ -16,26 +17,44 @@ export class TemplateRouter extends RouterBroker {
     super();
     this.router
       .post(this.routerPath('create'), ...guards, async (req, res) => {
-        const response = await this.dataValidate<TemplateDto>({
-          request: req,
-          schema: templateSchema,
-          ClassRef: TemplateDto,
-          execute: (instance, data) => templateController.createTemplate(instance, data),
-        });
+        try {
+          const response = await this.dataValidate<TemplateDto>({
+            request: req,
+            schema: templateSchema,
+            ClassRef: TemplateDto,
+            execute: (instance, data) => templateController.createTemplate(instance, data),
+          });
 
-        res.status(HttpStatus.CREATED).json(response);
+          res.status(HttpStatus.CREATED).json(response);
+        } catch (error) {
+          // Log error for debugging
+          console.error('Template creation error:', error);
+          
+          // Use utility function to create standardized error response
+          const errorResponse = createMetaErrorResponse(error, 'template_creation');
+          res.status(errorResponse.status).json(errorResponse);
+        }
       })
       .get(this.routerPath('find'), ...guards, async (req, res) => {
-        const response = await this.dataValidate<InstanceDto>({
-          request: req,
-          schema: instanceSchema,
-          ClassRef: InstanceDto,
-          execute: (instance) => templateController.findTemplate(instance),
-        });
+        try {
+          const response = await this.dataValidate<InstanceDto>({
+            request: req,
+            schema: instanceSchema,
+            ClassRef: InstanceDto,
+            execute: (instance) => templateController.findTemplate(instance),
+          });
 
-        res.status(HttpStatus.OK).json(response);
+          res.status(HttpStatus.OK).json(response);
+        } catch (error) {
+          // Log error for debugging
+          console.error('Template find error:', error);
+          
+          // Use utility function to create standardized error response
+          const errorResponse = createMetaErrorResponse(error, 'template_find');
+          res.status(errorResponse.status).json(errorResponse);
+        }
       });
   }
 
   public readonly router: Router = Router();
-}
+}

src/api/services/template.service.ts

@@ -60,6 +60,13 @@ export class TemplateService {
       const response = await this.requestTemplate(postData, 'POST');
 
       if (!response || response.error) {
+        // If there's an error from WhatsApp API, throw it with the real error data
+        if (response && response.error) {
+          // Create an error object that includes the template field for Meta errors
+          const metaError = new Error(response.error.message || 'WhatsApp API Error');
+          (metaError as any).template = response.error;
+          throw metaError;
+        }
         throw new Error('Error to create template');
       }
 
@@ -75,8 +82,9 @@ export class TemplateService {
 
       return template;
     } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error to create template');
+      this.logger.error('Error in create template: ' + error);
+      // Propagate the real error instead of "engolindo" it
+      throw error;
     }
   }
 
@@ -86,6 +94,7 @@ export class TemplateService {
       const version = this.configService.get<WaBusiness>('WA_BUSINESS').VERSION;
       urlServer = `${urlServer}/${version}/${this.businessId}/message_templates`;
       const headers = { 'Content-Type': 'application/json', Authorization: `Bearer ${this.token}` };
+      
       if (method === 'GET') {
         const result = await axios.get(urlServer, { headers });
         return result.data;
@@ -94,8 +103,15 @@ export class TemplateService {
         return result.data;
       }
     } catch (e) {
-      this.logger.error(e.response.data);
-      return e.response.data.error;
+      this.logger.error('WhatsApp API request error: ' + (e.response?.data || e.message));
+      
+      // Return the complete error response from WhatsApp API
+      if (e.response?.data) {
+        return e.response.data;
+      }
+      
+      // If no response data, throw connection error
+      throw new Error(`Connection error: ${e.message}`);
     }
   }
-}
+}

src/utils/errorResponse.ts

@@ -0,0 +1,47 @@
+import { HttpStatus } from '@api/routes/index.router';
+
+export interface MetaErrorResponse {
+  status: number;
+  error: string;
+  message: string;
+  details: {
+    whatsapp_error: string;
+    whatsapp_code: string | number;
+    error_user_title: string;
+    error_user_msg: string;
+    error_type: string;
+    error_subcode: number | null;
+    fbtrace_id: string | null;
+    context: string;
+    type: string;
+  };
+  timestamp: string;
+}
+
+/**
+ * Creates standardized error response for Meta/WhatsApp API errors
+ */
+export function createMetaErrorResponse(error: any, context: string): MetaErrorResponse {
+  // Extract Meta/WhatsApp specific error fields
+  const metaError = error.template || error;
+  const errorUserTitle = metaError.error_user_title || metaError.message || 'Unknown error';
+  const errorUserMsg = metaError.error_user_msg || metaError.message || 'Unknown error';
+  
+  return {
+    status: HttpStatus.BAD_REQUEST,
+    error: 'Bad Request',
+    message: errorUserTitle,
+    details: {
+      whatsapp_error: errorUserMsg,
+      whatsapp_code: metaError.code || 'UNKNOWN_ERROR',
+      error_user_title: errorUserTitle,
+      error_user_msg: errorUserMsg,
+      error_type: metaError.type || 'UNKNOWN',
+      error_subcode: metaError.error_subcode || null,
+      fbtrace_id: metaError.fbtrace_id || null,
+      context,
+      type: 'whatsapp_api_error'
+    },
+    timestamp: new Date().toISOString()
+  };
+}