Check-in App Homework

Requirements and Installation

• Node >= 8.9.1
• nodemon
  • via npm: npm install -g nodemon.
• yarn package manager
  • via Homebrew on MacOS: brew install yarn OR npm: npm install -g yarnpkg.

Once these are installed you can run yarn start in your terminal. Navigate to http://127.0.0.1:3000 in your browser to see the page. For this project, I tested only in the latest version of Chrome, so that's what I would recommend using. The UI was designed with the idea that it might be used on a tablet.

Production Improvements

If the time constraint were removed and this were being deployed to a production environment, there are a number of things I would improve upon. Here are a just a few:

• Add more robust exception handling
• Client side (Verify phone number is of proper length, some of the error responses are quite robotic)
• Server side (More thoroughly handle garbage data, edge cases, vulnerabilities)
• Swap SQLite3 for something that's more suitable/scalable (MySQL/Postgres).
• Beef up the data model (track check-in location and other things).
• Add a better build system (CSS preprocessor, asset minification, JS transpiler for better browser support)
• Add a front-end framework to make future changes scalable/pleasant (React/Angular).
• Add responsive CSS to better handle more screen sizes.
• Improve some of the rough edges of general UI/UX.
• Add test coverage, particularly for the backend.
• Move Mailgun integration to a background process to reduce request latency. (Queue/workers, Amazon SQS).