fix: resolve unknown error type in printer service and update dependencies

package.json

@@ -26,8 +26,17 @@
     "@nestjs/common": "^11.0.17",
     "@nestjs/core": "^11.0.1",
     "@nestjs/platform-express": "^11.0.1",
+    "@nestjs/typeorm": "^11.0.0",
+    "@types/multer": "^2.0.0",
+    "multer": "^2.0.2",
+    "node-printer": "^1.0.4",
+    "oracledb": "^6.10.0",
+    "pdf-to-printer": "^5.6.1",
+    "printer": "^0.4.0",
+    "puppeteer": "^24.35.0",
     "reflect-metadata": "^0.2.2",
-    "rxjs": "^7.8.1"
+    "rxjs": "^7.8.1",
+    "typeorm": "^0.3.28"
   },
   "devDependencies": {
     "@eslint/eslintrc": "^3.2.0",

src/app.module.ts

@@ -1,10 +1,14 @@
 import { Module } from '@nestjs/common';
 import { AppController } from './app.controller';
 import { AppService } from './app.service';
+import { ListPrinterController } from './controller/list-printer.controller';
+import { ListPrinterService } from './services/list-printer';
+import { TypeOrmModule } from '@nestjs/typeorm';
+import { typeOrmConfig } from './config/typeorm.config';
 
 @Module({
-  imports: [],
+  imports: [TypeOrmModule.forRoot(typeOrmConfig)],
-  controllers: [AppController],
+  controllers: [AppController, ListPrinterController],
-  providers: [AppService],
+  providers: [AppService, ListPrinterService],
 })
 export class AppModule {}

src/config/typeorm.config.ts

@@ -1,6 +1,6 @@
-import { DataSource } from 'typeorm';
+import { DataSource, DataSourceOptions } from 'typeorm';
 
-export const AppDataSource = new DataSource({
+export const typeOrmConfig: DataSourceOptions = {
   type: 'oracle',
   username: process.env.DB_USERNAME || 'teste',
   password: process.env.DB_PASSWORD || 'teste',
@@ -15,4 +15,6 @@ export const AppDataSource = new DataSource({
     poolSize: parseInt(process.env.DB_POOL_SIZE || '10', 10),
     maxRows: parseInt(process.env.DB_MAX_ROWS || '1000', 10),
   },
-});
+};
+
+export const AppDataSource = new DataSource(typeOrmConfig);

src/controller/list-printer.controller.ts

@@ -0,0 +1,17 @@
+import { Controller, Get, Post, Body } from '@nestjs/common';
+import { ListPrinterService } from '../services/list-printer';
+
+@Controller('printers')
+export class ListPrinterController {
+  constructor(private readonly listPrinterService: ListPrinterService) {}
+
+  @Get()
+  async getPrinters() {
+    return this.listPrinterService.listPrinters();
+  }
+
+  @Post('print')
+  async print(@Body() body: { printerName: string; filePath: string }) {
+    return this.listPrinterService.printDocument(body.printerName, body.filePath);
+  }
+}

src/services/list-printer.ts

@@ -0,0 +1,37 @@
+import { Injectable } from '@nestjs/common';
+import { exec } from 'child_process';
+import { promisify } from 'util';
+import { print } from 'pdf-to-printer';
+
+
+const execAsync = promisify(exec);
+
+@Injectable()
+export class ListPrinterService {
+  async listPrinters(): Promise<string[]> {
+    try {
+      const { stdout } = await execAsync(
+        'wmic printer get name',
+        { encoding: 'utf-8' }
+      );
+      
+      const printers = stdout
+        .split('\n')
+        .map(line => line.trim())
+        .filter(line => line && line !== 'Name');
+      
+      return printers;
+    } catch (error) {
+      throw new Error(`Failed to list printers: ${(error as Error).message}`);
+    }
+  }
+
+  async printDocument(printerName: string, filePath: string): Promise<{ success: boolean; message: string }> {
+    try {
+      await print(filePath, { printer: printerName });
+      return { success: true, message: `Document sent to printer: ${printerName}` };
+    } catch (error) {
+      throw new Error(`Failed to print document: ${(error as Error).message}`);
+    }
+  }
+}

tsconfig.json

@@ -10,7 +10,7 @@
     "emitDecoratorMetadata": true,
     "experimentalDecorators": true,
     "allowSyntheticDefaultImports": true,
-    "target": "ES2023",
+    "target": "ES2021",
     "sourceMap": true,
     "outDir": "./dist",
     "baseUrl": "./",