Simple Social Network

Link to app

Features

Profile: Create, update and list profiles. The profile list is randomly generated on every page load. Reloading the page will (probably) load new profiles.
Friends: Non-directional connection between 2 profiles. Stored as 2 ids in the database. Indexed for quick read and with uniqueness for data integrity.

Add friends by going to friends suggestions on the profile page.

Friend suggestions: List of suggestions of new friends for each profile. Add new friends using this page. Interesting to see that whenever you add a new friend, the friend suggestions count increases by 10-20.

Currently its a list of friends of friends. Later, sort by number of mutual friends and interests

Interests: List, Create, Update, Delete interests. Associate profiles with multiple interests
Seed Data: Create profiles, interests and friendships in bulk. In a single run:
- 10 interests, 10k profiles with random friendships and interests are created.
- ~260k entries created with 20 parallel database connections.
- Takes ~4 minutes to run locally, ~18min on Heroku. (This can be optimized by using SQL bulk inserts)

This can be run from the heroku dashboard. See Deployment section at the bottom

But be careful to not run into Heroku database limits (and thereby get 500 errors).

Non Features

Photo Upload: Photos cannot be uploaded to Heroku. S3 would be needed (ref). Currently, users can only enter URLs of photos uploaded somewhere else on the internet.

Local Installation and Usage

Requires ruby, bundler and postgres to be installed.

Then, just follow standard rails installation:

git clone git@github.com:vedant1811/social-network.git
cd social-network
bundle install

Create the database:

$ sudo -u postgres psql
postgres=# create user rails with password 'rails';
CREATE ROLE
postgres=# alter role rails superuser createrole createdb replication;
ALTER ROLE
<CTRL+D to exit cli>

$ rails db:create
$ rails db:migrate

Create seed data:

rails profiles:seed

Run the server locally:

rails s

Run all the tests:

rails test

Deployment

Deployed on Heroku, on the dev plan. This is limited 10k entries in the database (including connections and interests)

Link to app

Seed the database

Heroku CLI (Recommended)

Install Heroku CLI

heroku --version
heroku login
...
heroku run -a ved-social-network rails seed:profiles

Heroku dashboard

You can run the seed:profiles script in the heroku dashboard (but sometimes it fails halfway in the browser):

Select the app
More -> Run Console

Or, goto this link.

Then:

Run rails seed:profiles