readme.MD

How to make an API request to the Walmart I/O Affiliate API

This gist shows your how to prepare a request to the Walmart I/O Affiliate API, including how to sign your request with the private key you generated.

For more info, check out the accompanying blogpost: vandevliet.me/guide-how-to-use-the-walmart-affiliate-api-with-nodejs/

apiWalmart.js

import NodeRSA from "node-rsa";

const keyData = {
    consumerId: "CONSUMER_ID",
    privateKey: `-----BEGIN RSA PRIVATE KEY-----
MY PRIVATE KEY
-----END RSA PRIVATE KEY-----`,
  keyVer: 1,
  impactId: "YOUR IMPACT AFFILIATE ID" // not required
  },
    
    
const generateWalmartHeaders = () => {
  const { privateKey, consumerId, keyVer } = keyData;
  const hashList = {
    "WM_CONSUMER.ID": consumerId,
    "WM_CONSUMER.INTIMESTAMP": Date.now().toString(),
    "WM_SEC.KEY_VERSION": keyVer,
  };

  const sortedHashString = `${hashList["WM_CONSUMER.ID"]}\n${hashList["WM_CONSUMER.INTIMESTAMP"]}\n${hashList["WM_SEC.KEY_VERSION"]}\n`;
  const signer = new NodeRSA(privateKey, "pkcs1");
  const signature = signer.sign(sortedHashString);
  const signature_enc = signature.toString("base64");

  return {
    "WM_SEC.AUTH_SIGNATURE": signature_enc,
    "WM_CONSUMER.INTIMESTAMP": hashList["WM_CONSUMER.INTIMESTAMP"],
    "WM_CONSUMER.ID": hashList["WM_CONSUMER.ID"],
    "WM_SEC.KEY_VERSION": hashList["WM_SEC.KEY_VERSION"],
  };
};



export const getProductById = async (productId) => {
  const options = {
    method: "GET",
    headers: generateWalmartHeaders(),
  };

  const res = await fetch(
    `https://developer.api.walmart.com/api-proxy/service/affil/product/v2/items/${productId}?publisherId=${keyData.impactId}`,
    options
  );
  
  return await res.json()
};

I tried to use this but Im getting a weird error :
Error: error:25078067:DSO support routines:win32_load:could not load the shared library

Ever seen this error? More details about my issue: https://stackoverflow.com/questions/72100029/node-rsa-and-firebase-function-why-the-error-dso-support-routineswin32-load