Hey n8n community!
I wanted to share my recent (and occasionally quite challenging!) experience creating and installing a custom node – n8n-nodes-wamm – to integrate the WAMM platform (https://wamm.pro/) with n8n (my self-hosted version is 1.94.1).
Along the way, I faced various hurdles, from the classic CommonJS vs. ES Modules compatibility issues (hello, pkce-challenge and other transitive dependencies!) to correctly configuring the node package and debugging runtime errors. It was quite the debugging adventure! 
Because I know how valuable other people’s experiences can be when you’re hitting similar roadblocks, I’ve documented the entire journey – every step, every problem encountered, and every solution (with code examples and commands) – in a Medium article. I tried to make it as practical a guide as possible.
If you’re curious or facing difficulties when installing custom n8n nodes, I hope you find it helpful. You can read the full story here (it’s a “friends link,” so access is free, no paywall):
https://medium.com/@ulmeanuadrian/my-rocky-journey-installing-a-custom-n8n-node-a-tale-of-errors-and-solutions-cb4db23f049b?source=friends_link&sk=84d6225d470c61c1da30bf6ce02d241b
Any feedback or sharing of your own experiences is welcome! Happy automating!
Quick update on the WAMM custom node ( n8n‑nodes‑wamm )
Good news—every one of the obstacles I described in my Medium write‑up has now been fully eliminated. The package has been refactored, published on npm, and tested on the following setups:
- Self‑hosted (Docker & bare‑metal)
- n8n Desktop App (macOS, Windows, Linux)
- n8n Cloud
Zero‑friction install
# In your n8n project folder or Docker image
npm install n8n-nodes-wamm # or: yarn add n8n-nodes-wamm
Or, inside n8n: Settings ➜ Community Nodes ➜ Install ➜ n8n-nodes-wamm.
That’s it—no extra bundling steps, no CommonJS/ESM gymnastics, no patched dependencies.
What changed?
| Area |
Before |
Now |
| Build |
Mixed CJS/ESM, manual tweaks |
Pure ESM; Rollup + tsup automate everything |
| Auth |
pkce-challenge incompatibility |
Switched to native Node crypto—zero external deps |
| Typing |
Experimental d.ts |
Full TypeScript, auto‑generated defs |
| Docs |
Blog walkthrough only |
Step‑by‑step README on npm with copy‑paste snippets |
Get started
- Install (see above).
- Refresh n8n ➜ WAMM node appears under “Messaging”.
- Drop it on the canvas, add your WAMM API key & webhook URL.
- Enjoy two‑way WhatsApp automation without the headaches.
Full instructions live here: https://www.npmjs.com/package/n8n-nodes-wamm
I’d love to hear if it works just as smoothly for you—and, of course, PRs and issues are welcome on GitHub. Happy automating!