Spilled coffee on MacBook Pro Late 2013

Any time you spill liquid on a laptop, the last thing you want to do is give it power or turn it on. The first step is to open it up and remove the battery. The next step is to remove the logic board and carefully clean any and all liquid off of it and check for signs of corrosion (if you do this right away then there may not be any corrosion yet, although most of the older Macbooks I see have some kind of corrosion on them regardless of history).

You'll probably need a new keyboard at the very least. Cheap and easy if you're handy with disassembly. I doubt you'll need a new battery but if the charger still doesn't work you may need a new one and/or a new Magsafe DC board.