promise.js

function parse_cookies(req, next){

  // funciton for working with promises
  let promise = function(name){
    console.log('name===' + name);
    return new Promise((resolve, reject) => {
      client.get(name, function(err, reply) {
        console.log('name = ' + name + ' reply=' + reply);
        resolve('name = ' + name + ' reply=' + reply);
      });
    });
  }


  if(req.headers.cookie != null){
    var result = req.headers.cookie.match(new RegExp('m:[^=]*=[^; ]*', 'ig'));
    console.log('result= '+result);
    if(result != null){

      // array of promisess
      var mass_prom = [];
      // work with our cookie
      for(var i = 0; i < result.length; i++){

        console.log('i = ' + i);
        console.log('result[i] = ' + result[i]);
        var result1 = result[i].split('=');
        result1[0] = result1[0].substr(2);
        console.log('result1[0] = ' + result1[0]);
        console.log('result1[1] = ' + result1[1]);

        var name = 'sess:'+result1[0];
        // run promise
        mass_prom.push(promise(name));
      } // for for getting promises

      console.log(mass_prom);

      Promise.all(mass_prom).then(function(values) {
        console.log('values = ' + values);
        for(var i=0; i<values.length; i++){
          console.log('i= ' + i + ' values[i]= ' + values[i]);
        }
        next();
      });

      // for for hadling then
      // for( var i = 0; i < mass_prom.length; i++ ) {
      //   console.log(i);
      //   mass_prom[i].then((successMessage) => {
      //     // successMessage is whatever we passed in the resolve(...) function above.
      //     // It doesn't have to be a string, but if it is only a succeed message, it probably will be.
      //     console.log('i = ' + i + " Yay! " + successMessage);
      //     // next(); // pass next middleware
      //   });
      // }



    }
  }

  //
  //
  // myFirstPromise.then((successMessage) => {
  //   // successMessage is whatever we passed in the resolve(...) function above.
  //   // It doesn't have to be a string, but if it is only a succeed message, it probably will be.
  //   console.log("Yay! " + successMessage);
  //   next(); // pass next middleware
  // });



} // parse_cookies