init project evolution api

src/whatsapp/controllers/views.controller.ts

@@ -0,0 +1,28 @@
+import { Request, Response } from 'express';
+import { Auth, ConfigService } from '../../config/env.config';
+import { BadRequestException } from '../../exceptions';
+import { InstanceDto } from '../dto/instance.dto';
+import { HttpStatus } from '../routers/index.router';
+import { WAMonitoringService } from '../services/monitor.service';
+
+export class ViewsController {
+  constructor(
+    private readonly waMonit: WAMonitoringService,
+    private readonly configService: ConfigService,
+  ) {}
+
+  public async qrcode(request: Request, response: Response) {
+    try {
+      const param = request.params as unknown as InstanceDto;
+      const instance = this.waMonit.waInstances[param.instanceName];
+      if (instance.connectionStatus.state === 'open') {
+        throw new BadRequestException('The instance is already connected');
+      }
+      const type = this.configService.get<Auth>('AUTHENTICATION').TYPE;
+
+      return response.status(HttpStatus.OK).render('qrcode', { type, ...param });
+    } catch (error) {
+      console.log('ERROR: ', error);
+    }
+  }
+}