Possible to receive salesforce changes (e.g. webook) without learning APEX code?

I’d like to update a mongo DB when somebody updates their salesforce DB. This is pretty straightforward with stripe (e.g. catching a failed credit card for a subscription) but I can’t seem to find a straightforward way to do this with salesforce. It sounds like you can write it using “APEX” but I’d rather not learn a near useless programming language just to setup some alerts between my meteor app and a salesforce DB.

Has anyone done this before? Should I just dive into APEX? Or is there a way to setup it up on salesforce?