Add log in groups middleware

src/guards/groups.guards.ts

-import { Injectable, CanActivate, ExecutionContext } from '@nestjs/common';
+import { Injectable, CanActivate, ExecutionContext, Logger } from '@nestjs/common';
 import { Reflector } from '@nestjs/core';
 import { ConfigService } from '../configuration/config.service';
 
@@ -7,6 +7,7 @@ export class GroupsGuard implements CanActivate {
   constructor(private readonly reflector: Reflector, private configService: ConfigService) {}
 
   canActivate(context: ExecutionContext): boolean {
+    Logger.log('[+] GroupMiddleware');
     // We get the groups specified on the endpoint with the @Groups annotation
     // We need then to get the real group names associated to those keys from the config file
     const groups = this.reflector.get<string[]>('groups', context.getHandler()).map((e) => {
@@ -23,10 +24,14 @@ export class GroupsGuard implements CanActivate {
     const groupHeader = request.headers[this.configService.config.groupHeader];
 
     if (!groupHeader) {
+      Logger.log('    [-] no group header');
       return false;
     }
 
     const consumerGroups = groupHeader.split(',').map(e => e.trim());
+
+    Logger.log(`    [-] consumer groups: ${consumerGroups}`);
+
     const hasGroup = () => consumerGroups.some((group) => groups.includes(group));
 
     return consumerGroups && hasGroup();