Instasmart

A Q&A Forum for Instacart Employees

Overview

• Users create questions that are answered by, commented on, and liked by other users.
• Users can also like answers and comments, and comment on answers.
• Question authors can mark an answer as "accepted"
• Authors can edit or delete their questions, answers, and comments, respectively.
• Users can sort by most recent, most commented, most answered, or most popular (most likes).
• Users can search the database for matches on question.summary, question.body, and tag_list.

Features

Rails Server and 100% React Client

• Rails 4.1
• 100% React Client with React Router and Redux
• Server/Client Integration with React_on_rails
• Rails sends data as packaged json through Active Model Serializers

Polymorphic Comments

Allow users to comment on questions OR answers via @context (another suggestion from Rich on Rails) to determine the association.

def context
  if params[:question_id]
    id = params[:question_id]
    Question.find(params[:question_id])
  elsif params[:answer_id]
    id = params[:answer_id]
    Answer.find(params[:answer_id])
  end
end

@context = context

Likes

• We integrated Acts As Votable to allow users to upvote questions and answers.

Tags

• We used Acts as Taggable On for tag functionality.

User Authentication

• User auth on server side via OmniAuth Google OAuth2 Strategy and this tutorial form Rich on Rails
• Extracts several features from Devise, such as the current_user object, but with a much lighter framework and faster implementation time
• Will create a new user if one does not exist.
• Access Restricted to instacart.com and option to whitelist other domains