Add Turn-by-Turn Navigation with Mapbox Directions API

Mapbox Directions API offers navigation features such as turn-by-turn directions, traffic-aware routing, and ETA calculation for driving, cycling, and walking, all integrated with their vector maps. This tutorial demonstrates how to implement real-time turn-by-turn navigation in applications, like taxi or delivery services, using Mapbox Directions BLOCK and PubNub for streaming geolocation data. It involves setting up a Mapbox developer account, configuring services, and utilizing PubNub BLOCKS to execute in-motion data functions, which calculate and publish directions to end-users. The tutorial provides a code walkthrough, detailing the use of Angular2 for the user interface and explaining the integration of necessary dependencies for a streamlined setup. Through a combination of JavaScript, HTML, and PubNub services, users can build a real-time navigation app that efficiently processes and delivers directions to clients, enhancing the functionality of location-based applications.