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The planned n8n node wraps the public Batch Relay API. It sends canonical Batch Relay product references and prepared assets to the API; it never talks to WHCC or any print provider directly.

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Credential

  • Batch Relay API Key
  • Base URL, usually https://api.batchrelay.com

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Operations

  • Create Print Order
  • Get Print Order
  • Get Usage Summary

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Field mapping

Create Print Order will collect:
  • One or more line items with canonical product ID/revision, quantity, and required prepared assets
  • 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.

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Provider cost discovery

Read approved provider_offers on the product or call GET /v1/catalog/products/{product_id}/offers. Product metadata supplies the immutable ID, revision, options and units_per_quantity, never a fallback cost. Match the offer’s exact product revision, configuration and provider. Missing numeric costs remain unknown. An available approved zero is valid. The amount is per ordered quantity. A 12-card pack ordered twice produces 24 cards at two pack costs. Do not multiply the cost by 12 again. Keep retail prices separate, preserve credential lanes and explicit routing, and use the returned quote for shipping, tax, fees, final availability and total.