cf-n8n-proxy

Cloudflare worker for n8n proxy

Why do you need this?

• You can use this service to protect your n8n instance from DDoS attacks.
• You can use this service to hide your n8n instance from the public.
• You can use this service to add rate limiting to your n8n instance.
• You can use this service to add deduplication to your n8n instance.
• You can use this service to add a queue to your n8n instance.
• You can use this service to add a retry mechanism to your n8n instance.

Requirements:

• You need a paid Worker plan ($5 USD) for this service due to the queue.
• A cloudflare domain

Architecture:

cloudflare -> cloudflare worker -> n8n

How to use?

Wrangler install

npm install -g wrangler pnpm

NPM package install

pnpm install

Wrangler login

wrangler login

Create your wrangler config

cp wrangler.toml_example wrangler.toml

• Change everywhere example.com to your domain

Create queue

wrangler queues create cf-n8n-proxy-production -e production
wrangler queues create dlq-cf-n8n-proxy-production -e production

Enable deduplication feature

wrangler kv:namespace create cf-n8n-proxy

• Replace <mykvid> with the response ID in the wrangler.toml file.
• Change DEDUPLICATION_ENABLED=false to DEDUPLICATION_ENABLED=true in the wrangler.toml file.

IMPORTANT NOTES ABOUT DEDUPLICATION "As of January 2022, expiration targets that are less than 60 seconds into the future are not supported. This is true for both expiration methods."

• DEDUPLICATION_TTL is optional; by default, it is set to 60 seconds.

Rate limiting

• Change RATE_LIMITING_ENABLED=false to RATE_LIMITING_ENABLED=true in the wrangler.toml file.

Default 100 requests per minute

simple = { limit = 100, period = 60 }

Deploy your service

wrangler deploy -e production

How to test in local?

wrangler dev