Well, internet is not everywhere. So there may be some location which is completely remote and still we need to find directions. We have tried to build a mobile app that can help users to use the SMS service to send the request to a 3rd party platform which can receive the request and send it to our API endpoint to recieve the response.
Not one but many, we had to donwload the SDK of Mapbox to support the UI in offline mode. Use the concept of caching is the user had ever been to that place. as well as to do he math to plot the polygon line. We failed the last point though.
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