node-quickstart

Node quickstart

Look up a product by identifier, print title + Walmart price + cheapest cross-retailer offer. Single file, zero deps, Node 20+.

export RETAILERAPI_KEY=rk_live_…
node index.js                    # default: Walmart pressure cooker
node index.js 194629116676       # any UPC
node index.js B07ABCDEFG         # any Amazon ASIN

Sample output:

12-in-1 Electric Pressure Cooker 6 QT Stainless Steel Multi Cooker…
  brand:        Cooks Essentials
  walmart:      $100.56  (https://www.walmart.com/ip/19667262713)
  cheapest off-Walmart: $59.99 at lowes

tokens_consumed: 10 · tokens_remaining: 998

What this shows

• Bearer-token auth via Authorization: Bearer rk_live_…
• ?include_cross_retailer=true to fold in non-Walmart pricing
• cross_retailer[].status semantics — ok / indexing / not_found / etc.
• Token accounting headers on the response.

Next

Use the same pattern with /v1/products/{id}/history for price history, /v1/products/{id}/reviews for reviews, or /v1/sellers/{id} for seller profiles.

Full reference: docs.retailerapi.com.