I did solve it
under the config folder I created a functions folder and you create a js file named for what you are doing:
eg myfunction.js
inside this file
module.exports = {
async func1(input1, input2) {
// do your work here
},
}
Now the part that made it work was I had to import it in my controllers or where ever you want to use it
ie const {func1} = require("…/…/…/…/config/functions/myfunction");
Hope it help