Please read those instructions carefully, it contains useful information to help you complete the test successfully.
Expected completion time: a few hours
Preferred languages are Node.js and ReactJS
This test will ask you to build an application allowing anyone to view on a map the real-time state and position of our drivers in a geographical zone.
To facilitate the evaluation, we advise you to use :
- Node >= 10.15
- RabbitMQ >= 3.4.1
- React >= 16.2 (if need be)
The states are read from the RabbitMQ exchange drivers with the routing key drivers.update.
Their anatomy is:
{
"id": "{string} [DRIVER_ID]",
"state": "(available|ride|...)",
"position": [ "{number} latitude", "{number} longitude" ]
}The RabbitMQ connection string is: amqp://guest:guest@localhost:5672.
The rest is up to you :)
The front application must display in real-time on a map the states and the positions of all the drivers in the current geographical zone. The zoom and the pan must be available. The total number of drivers in the zone must be displayed.
If the page is refreshed, it should instantly display the most up-to-date position of the drivers even if the application does not receive any new messages.
If the age of a driver's position is greater than a certain value - that you will have to determine - an indication of the fact that this position is outdated should be given. The way to display this information is totally up to you.
Read the following section to start the drivers' states emission worker. This will initialize the RabbitMQ server as well as the states producer you will consume for your application.