Polling

The main goal of this app is to experiment with some technologies related to Javascript.

Features

• Create poll
• Edit poll
• Delete poll
• Vote
• Register user
• Authenticate user

Technologies

• Angular
• Angular Material
• Angular Flex Layout
• Node.js
• Express
• Mongo DB
• Mongoose
• Morgan/Winston
• Fakerator

Executing

.env

First of all, there are some environment variables that should be set in the middleware/.env file:

PORT=3000
APP_USER_USERNAME=polling
APP_USER_NAME=Polling
APP_USER_EMAIL=polling@domain.com
MONGODB_HOST=cluster0-shard-00-00-5qsjr.mongodb.net:27017,cluster0-shard-00-01-5qsjr.mongodb.net:27017,cluster0-shard-00-02-5qsjr.mongodb.net:27017
MONGODB_USERNAME=polling
MONGODB_PASSWORD=<secret>
MONGODB_DATABASE=polling

Change the values at will accordingly to you Mongo DB configuration.

Database

You should have a Mongo DB server available. It can be a local/remote installation, a docker contianer or even an instance in Cloud Atlas.

With that in place and with the middleware/.env file configured accordingly, run the create-test-db.js script to create some test data:

cd middleware/
npm run create-test-db

Middleware

You can run the middleware component in a development fashion, where the files will be watched for changes:

npm run dev

Or for a production environment:

npm start

Frontend

To start the frontend component, simply serve it with the Angular CLI:

ng serve

MongoDB

mongo "mongodb+srv://cluster0-5qsjr.mongodb.net/admin" --username polling

use polling
db.polls.find({}, { title: 1 })
db.polls.findOne()
db.users.find().forEach((document) => { print(document.email) })
db.votes.aggregate([{$lookup: {from: "users", localField: "voter", foreignField: "_id", as: "voter"}}, {$lookup: {from: "polls", localField: "poll", foreignField: "_id", as: "poll"}}, {$project: {"poll.options.votes": 0}}]).pretty()
db.polls.aggregate([
  { $match: { _id: ObjectId("5da5b3a2f0ca1b54861c48c9") }},
  { $unwind: "$options" },
  { $project: { _id: 0, "options.option": 1, "options.voteCount": { $size: "$options.votes" } }},
  { $addFields: { option: "$options.option", voteCount: "$options.voteCount" } },
  { $project: { option: 1, voteCount: 1} },
  { $sort: { voteCount: -1 }}
]).pretty()