SaltyExxer

Greetings - I've been playing around creating the backend for an online map using node.js I'd like to populate the information for things like vendors and fast travel points based on information I know must be available in the game files. Thing is, I have no idea how to go about finding or extracting this information from the files. Can someone point me in the right direction? Where would this information be located and what tool can I use to dump the info I want?