When I read "one line" I thought you were serving full-map images tweaked by query parameters.
(Of course I ignored the "interactive" part, but it seems like a good idea nonetheless.)
Don't be disingenuous about what you're actually showing people here. You can claim to do just about anything in "one line" if you ignore the API wrapper and remote service doing the actual work.
I’m with krapp; it is completely disingenuous to say this is a one liner.