issue with accessing c++ library using fastcall. (javascript, nodejs, foreign function interface)

Question

I tried using fastcall, this is my first time using fastcall and foreign function interface, I tried to load datatable.dll it is throwing error, tried passing every possible library path (absolute and relative). using nodejs, fastcall, javascipt

const fastcall = require('fastcall');
const Library = fastcall.Library;
const ref = fastcall.ref;
const lib = new Library('datatable.dll')
lib.isSymbolExists('fread')

error i received is

TypeError: Cannot load library or library not found: datatable.dll
at Library.initialize (c:\Users\nband1\fastcall\fastcall\lib\Library.js:82:37)
at Library.isSymbolExists (c:\Users\nband1\fastcall\fastcall\lib\Library.js:111:14)