Integration with Nodejs

Regarding my problem in app integration using Nodejs and using cloud API, and need help for my custom trigger couldn’t work, I don’t know if its a problem with monday.com or my Nodejs cause I’ve made the /monday/subscribe and /monday/unsubscribe. I need assistance with configuring my API, cause I don’t know if I should add app webhook and it’s because of it, there aren’t any instruction in the documentation (only for querying) for webhook to Nodejs.