n8n
The n8n node wraps the public Batch Relay API. It sends Batch Relay product aliases to the API and never talks to WHCC or any print provider directly.
Credential
Section titled “Credential”- Batch Relay API Key
- Base URL, usually
https://api.batchrelay.com
Operations
Section titled “Operations”- Create Print Order
- Get Print Order
- Get Usage Summary
Field mapping
Section titled “Field mapping”Create Print Order collects:
- One or more line items with product alias, quantity, and image URL
- Ship-to name and address
- External order ID
- Idempotency key
- Billing required toggle
The node generates an idempotency key when one is not supplied. Production submission is not available yet; use sandbox until Batch Relay enables production billing and submit safeguards.