I am a new member here on OSM and I reall need some guidanace regarding development with OSM.
I want to incorporate into an website an function simillar with the function of OSM when a new user registers (displaing an green mark on the map where the user lives).
If a friend of the user enters the user’s name, the site will load the map exactly where the user lives. It’s something like an user map locator.
I know it can be done in OSM because i saw it when registering but I’m wondering if there is any OSM API that does this function or please explain to me how to achieve this.