code: function (req, cb) {
          if (req.soajs && req.soajs.tenantOauth && req.soajs.tenantOauth.secret && req.soajs.tenant && req.soajs.tenant.id) {
              let secret = req.soajs.tenantOauth.secret;
              let tenantId = req.soajs.tenant.id.toString();
  
              let basic = Auth.generate(tenantId, secret);
              return cb(null, basic);
          }
          else
              return cb({"code": 406, "msg": req.soajs.config.errors[406]});
      }
docs: Generate the the authorization value