n8n Expressions Explained from FIRST PRINCIPLES

Описание: n8n expressions are the real dividing line between workflows that look good in demos and workflows that actually work in production.

In this video, I explain what n8n expressions really are, where they sit in the architecture of n8n, and why you can’t seriously use the platform without understanding them — even if you don’t consider yourself a “coder.”

This is not a list of tricks or snippets.
It’s a first-principles explanation of:

why n8n expressions exist at all

how they relate to data flow inside workflows

the two core things expressions are used for

and why most broken automations break precisely here

If you’re a beginner who keeps copy-pasting workflows that later fail — or a business user who wants automations that actually fit your needs — this video will give you the right mental model.

Platform covered: n8n

🔔 Subscribe if you want calm, conceptual explanations of AI automation — not hype, not hacks.

Work with me: https://matiasgarrido.com/

00:00 Why expressions matter in n8n
02:01 Why n8n is the hottest AI Automation platform
05:02 Where expressions fit in the big picture
08:44 Workflows as data assembly lines
10:10 n8n parameters with fixed values
12:03 n8n expressions for eferencing data
15:28 n8n expressions for transforming data
17:47 no need to learn Javascript to use n8n expressions