Bus Tracker

Bus Tracker is an application that lets you monitor Warsaw's public transportation vehicles while you are waiting on a stop.

Installation

To run the backend side of the app use

docker-compose up

The frontend (services/app/index.html) can be accessed by web browser.

Usage

Just type the name of your stop into the input box and after a few seconds you will see vehicles moving on a map.

How does it work?

There are four components.

• ztm-hook is a simple Python script that polls ZTM API and writes vehicles' location data to the topic ztm-input run by Kafka
• kafka-stream is a Java application using Kafka Streams that reads messages from ztm-input, augments them with vehicles' speed and bearing and finally writes to the ztm-output topic
• trackeris a Go based server side application providing two REST API endpoints to the data collected from ztm-output
• app is basic client side JavaScript application showing vehicles on the map