Option to Assign Custom Webhook URL (for Cloudflare Tunnel Deployments)

Questions
1

When deploying n8n on localhost and using a Cloudflare tunnel, the webhook node still gets assigned the local address instead of the tunnel URL. This causes issues when external services try to access the webhook.

I think n8n should have an option to manually assign a webhook address, so we can directly set the tunnel URL as the webhook.

2

Hey @foginevury hope all is well. Welcome to the community.
Have you set the WEBHOOK_URL env variable? Have you restarted the instance after that?

3

No, I haven’t done that yet. Could you please guide me on how to set the WEBHOOK_URL environment variable and restart the instance properly?

4

You would usually set this under environments in your docker compose or you pass this environment variable with docker run command.

See the following guides:

As to rebooting - that solely depends on how you are running your instance. Tell us more about that.

5

I’m not using Docker. I installed n8n with npm install -g n8n.
In this case, how can I set the tunnel link as the webhook URL?

6

You can either prepend the variable before starting n8n

WEBHOOK_URL=https://example.com/ n8n

or you can export your variable and then start n8n

export WEBHOOK_URL=https://example.com/
n8n

I think it should also be possible to store env vars to a file .env in the place where you run n8n from

.env

WEBHOOK_URL=https://example.com/

and then run n8n

n8n
8

Yes, it worked! :tada:

Here’s the permanent solution for setting the webhook URL so n8n always uses the tunnel link instead of localhost:

Windows:

  • Go to System Properties > Environment Variables
  • Add a new system variable:
    • Name: WEBHOOK_URL
    • Value: https://your-tunnel-link.domain/
  • Save and restart your terminal/PC

Linux / Mac:

  • Open your shell config file (~/.bashrc, ~/.zshrc, etc.)
  • Add this line:
    export WEBHOOK_URL=https://your-tunnel-link.domain
9

If my answer helped you to solve your problem, kindly mark my answer as Solution.
Thanks.

Cheers.