promises.js

exports.findResultsByFreeText = function(req, res, next, freeText) {
  //TODO: Check if request contains facet params, and filter accordingly
  req.results = []; //Array
  getListOfTeams(req.user.username).then(function(results) {
    promise_map(function(result){
      //console.log("a");
      elasticsearch_client.search({
        index: result.teamUnique + "_team",
        type: result.username,
        body: {
          query: {
            match: {
              name: freeText
            }
          }
        }
      }).then(function(resp) {
        req.results.push(resp);
      }, function(err) {
        console.log("ErrorA:: " + err);
      });
    }, Promise.all(results));
    next();
  }, function(err) {
    console.log("ErrorB:: " + err);
  });
}

var getListOfTeams = function(username) {
  return new Promise(function(resolve, reject){
    if(!username){
      reject({"ErrorType":"UserNotFound", "Remarks":""});
    }
    TeamsToUsers.find({
      username:username
    }, function(err, results){
      if(err){
        reject({"ErrorType":"ErrorInQuery", "Remarks":err});
      }
      else {
        resolve(results);
      }
    });
  });
}