Departure Times

Departure Times, Coding Challenge

Demo: http://188.166.69.145/

General overview

According to problem statement: as if it were going into production, I put all my afford to make an back-end architecture scalebale and easy to change.

Service Oriented Architecture, with 7 docker containers:

• nginx
• console
• core
• stop_finder
• sync (TODO + RabbitMQ)
• postgres
• elasticsearch

Every modules is described within it's own readme file.

Preparation

To run an aplication, we just need to clone current repo, run docker-compose up -d and create next_bus database in postgresql. Once all services are ready, we can trigger synchronization (/run endpoint in sync module), to fetch data from NextBus.

Basic workflow

User is coming to the page, he/she should be asked for GeoLocation. Once it's provided, stop_fined would look in elasticsearch for nearest stop for given coordinates. When that stop is defined, core would be asked to give the schedule for given stopTag.

Tools used

• Python 3.5
• docker 1.9, docker-compose 1.5, docker-machine 0.5
• postgresql 9.4, elasticsearch 2.1, (TODO: celery + rabbitmq)