This is Node.js library will require postgres 10+ to be setup prior to using the library when it is complete. Currently everything is being saved to memory when it's ran and it's not saving it all to postegres quite yet.
Currently you have to edit lib/reader/arkCache.js#6 to where your ark is, this will be changed to a setting later on.
fileName: "D:\\Steam\\steamapps\\common\\ARK\\ShooterGame\\Saved\\Saves\\TheIsland.ark", //Path to your ark
Currently you can just run node . and it will run all it's reading functions and exit. The save.loadEverything() function is what returns all the data and will probably be setup to push to postgres via a different service at some point.
This library is a rough port from tsebring's C# ArkSavegameToolkitNet (https://github.com/tsebring/ArkSavegameToolkitNet), which was ported from Qowyn's Java ark-savegame-toolkit (https://github.com/Qowyn/ark-savegame-toolkit).