How to build a route between 2 points?

Question

Google

The user selects the first location and then selects the second location.
I write down the coordinates of the 1st and 2nd places in a variable ..
How can I now lay a route between these 2 points? I can’t find an example.
It is also not clear. How to correctly send a request, what exactly data should be sent to the server?

Answer 1

https://developers.google.com/maps/documentation/j...