docs: function parallelApis(apiCalls, req, res, next) {
      debug('parallelApis started!! # calls:' + apiCalls.length);
  
      var results = 1;
      apiCalls.forEach(function(apiCall){
        api.getData(apiCall, req, res, function(err){
          if (err) { 
            next(err); // if any error - send full request into error flow, exit out of parallelApi calls
            return;
          }
  
          if (results++ === apiCalls.length) {
            debug('parallelApis done!!');
            next(); // if all calls return successfully call the express next()
          }
        });
      });
    }