Rendering view after multiple SELECT queries in Express

Question

I\'m a bit new in Node.JS and Express framework and I have a great problem with the code below:

app.get(\'/student\', function(req, res) {
    var dbRequest          


        

Answer 1

I know this is an old question, but for anybody still having problems and using MongoDB instead this is what worked for me.

//index.js    
const express = require('express');
const router = express.Router();

function getData (req, res, next) {
  var db = req.db;
  var collection = db.get('usercollection');

  collection.find({}, {}, function(e, docs) {
    req.data = docs;
    return next();
  });
}

function getVendor (req, res, next) {
  var db = req.db;
  var collection = db.get('usercollection');

  collection.distinct("vendor", function(e, docs) {
    req.vendor = docs
    next();
  });
}

function getType (req, res, next) {
  var db = req.db;
  var collection = db.get('usercollection');

  collection.distinct("type", function(e, docs) {
    req.type = docs
    next();
  });
}

function renderData(req, res) {
    res.render('index', {
        data: req.data,
        vendor: req.vendor,
        type: req.type
    });
}

/* GET home page. */
router.get('/', getData, getVendor, getType, renderData);


module.exports = router;

Then inside your ejs file

//index.ejs 


Choose a Vendor