The incomplete prototype app appears to have the following elements implemented:

An implementation that allows a location address to be obtained from Nominatim.

A basic user interface for a vehicle owner to offer a ride$-$share, including the waiting address, start time, the time the vehicle will wait to collect passengers, and matches between the owner and passengers.

An implementation to send the offer to the API, cancel the offer, and retrieve matches.

The Guild would like you to add the following functionality to the app:

Allow a passenger to request a ride$-$share including where they wish to be picked up and time of travel.

Allow a passenger to cancel a ride$-$share request.

Allow a passenger or vehicle owner to set their location using GPS$.$

Allow a passenger to see when they have been matched with a provider.

A passenger or vehicle owner to be able to register themselves with a user ID of their choice.

A passenger or vehicle owner should be informed if the API reports an error.

When implementing these, please keep the following in mind:

You need to complete the existing app rather than start from scratch.

The system is intended to be a prototype and has significant limitations$.$

A backend API written in express.js has been provided, you will find it useful to inspect the API to understand how to implement the frontend.