Health App Demo

Prototype application that exposes a public API that accepts laboratory mesurements results for patient and presents the data on a web page as a timeline of events.

Sample JSON github.com/erikathea/health-app/blob/master/lib/assets/payload.json

Patient card design:

When viewing the patient card in a browser, the patient’s data is displayed in an FB-like news feed, grouped in boxes per the registration date. The newest registration are shown first, from top to bottom.

The feed automatically refreshes with new data every 5 seconds.

If a medical data comes with a normal_range value and the measured value is outside the bounded range, then put a label “warning”, if within 10% of the bounds, or “critical”, if > 10% of the bounds.

For aesthetic purpose, present the data in a table per news feed entry.

Setup:

• Prereq: virtual box & vagrant

• Run vagrant up

• Access dev env via vagrant ssh

• Run the script ./vagrant/setup.sh

• Add 127.0.0.1 api.health-app.dev to /etc/hosts

• Open app in http://127.0.0.1:3000/

If errors are encountered, check if all commands in setup.sh are successful. (github.com/erikathea/health-app/blob/master/setup.sh)

Notes:

API Calls via api.health-app.dev:3000

• \token - return a limited-time auth token for saving data;

** receives the following input parameters via a POST http request:
 * application_key - 24 character string to identify the API consumer, that is looked up against a global constant, declared in the application’s environment file.
** returns a 12 character randomly generated hexdigest with a 5 second expiry, that can be used by the consumer to submit data for a patient

• \save ** will receive the following input parameters via a POST http request:

  * payload - a JSON string (see sample https://github.com/erikathea/health-app/blob/master/lib/assets/payload.json)
  * token - 12 character string received from /token, and will be check if valid (exists and within the expiry time)

  ** return the text ‘OK’, with http response code 200 if success, and an ‘ERROR’, with code 500 if there’s a problem

• \patient\:ssn - accessible via a browser, will show the patient’s medical card

Rake tasks

• rake setup:bootstrap - bootstrap the app in development mode, with the built-in data for demo purposes. e.g. 10 sample patients in the database

• rake demo:load_data - load a set of sample laboratory data, calling the API provided by the app

Unicorn

• sudo service unicorn start

• sudo service unicorn stop

Nginx

• sudo service nginx start

• sudo service nginx stop

• sudo service nginx restart

TODO:

• Use ActiveModelSerializer instead of JBuilder

• Add AngularJS related tests

• Make Turbolink & AngularJS work with each other