VBScript Requires Chilkat v11.0.0+
Walmart v3 Item Setup by Match

Provides a quick and convenient way to set up items by matching your items to existing item content on Walmart.com.
Chilkat VBScript Downloads

VBScript
Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

success = 0

'  This example assumes the Chilkat API to have been previously unlocked.
'  See Global Unlock Sample for sample code.

set http = CreateObject("Chilkat.Http")

'  Implements the following CURL command:

'  curl -X POST \
'    https://marketplace.walmartapis.com/v3/feeds?feedType=item \
'    -H 'WM_SVC.NAME: Walmart Marketplace'
'    -H 'WM_SEC.ACCESS_TOKEN: eyJraWQiOiIzZjVhYTFmNS1hYWE5LTQzM.....'
'    -H 'WM_QOS.CORRELATION_ID: b3261d2d-028a-4ef7-8602-633c23200af6'
'    -H 'Content-Type: application/json'
'    -H 'Accept: application/json'
'    -d '{
'      "MPItemFeedHeader": {
'          "version": "3.2.1"
'      },
'      "MPItem": [
'          {
'              "sku": "setup_by_ref",
'              "productIdentifiers": [
'                  {
'                      "productIdType": "GTIN",
'                      "productId": "05518319011365"
'                  }
'              ],
'              "MPProduct": {
'                  "category": "Electronics",
'                  "subCategory": "ElectronicsAccessories"
'              },
'              "MPOffer": {
'                  "price": 12.00,
'                  "shippingWeight": {
'                      "measure": 0.5,
'                      "unit": "lb"
'                  },
'                  "productTaxCode": 2038710
'              }
'          }
'      ]
'  }'

'  Use this online tool to generate code from sample JSON:
'  Generate Code to Create JSON

'  The following JSON is sent in the request body.

'  {
'    "MPItemFeedHeader": {
'      "version": "3.2.1"
'    },
'    "MPItem": [
'      {
'        "sku": "setup_by_ref",
'        "productIdentifiers": [
'          {
'            "productIdType": "GTIN",
'            "productId": "05518319011365"
'          }
'        ],
'        "MPProduct": {
'          "category": "Electronics",
'          "subCategory": "ElectronicsAccessories"
'        },
'        "MPOffer": {
'          "price": 12.00,
'          "shippingWeight": {
'            "measure": 0.5,
'            "unit": "lb"
'          },
'          "productTaxCode": 2038710
'        }
'      }
'    ]
'  }

set json = CreateObject("Chilkat.JsonObject")
success = json.UpdateString("MPItemFeedHeader.version","3.2.1")
success = json.UpdateString("MPItem[0].sku","setup_by_ref")
success = json.UpdateString("MPItem[0].productIdentifiers[0].productIdType","GTIN")
success = json.UpdateString("MPItem[0].productIdentifiers[0].productId","05518319011365")
success = json.UpdateString("MPItem[0].MPProduct.category","Electronics")
success = json.UpdateString("MPItem[0].MPProduct.subCategory","ElectronicsAccessories")
success = json.UpdateNumber("MPItem[0].MPOffer.price","12.00")
success = json.UpdateNumber("MPItem[0].MPOffer.shippingWeight.measure","0.5")
success = json.UpdateString("MPItem[0].MPOffer.shippingWeight.unit","lb")
success = json.UpdateInt("MPItem[0].MPOffer.productTaxCode",2038710)

http.SetRequestHeader "WM_QOS.CORRELATION_ID","b3261d2d-028a-4ef7-8602-633c23200af6"
http.SetRequestHeader "Content-Type","application/json"
http.SetRequestHeader "WM_SEC.ACCESS_TOKEN","eyJraWQiOiIzZjVhYTFmNS1hYWE5LTQzM....."
http.SetRequestHeader "Accept","application/json"
http.SetRequestHeader "WM_SVC.NAME","Walmart Marketplace"

set resp = CreateObject("Chilkat.HttpResponse")
success = http.HttpJson("POST","https://marketplace.walmartapis.com/v3/feeds?feedType=item",json,"application/json",resp)
If (success = 0) Then
    outFile.WriteLine(http.LastErrorText)
    WScript.Quit
End If

set sbResponseBody = CreateObject("Chilkat.StringBuilder")
success = resp.GetBodySb(sbResponseBody)
set jResp = CreateObject("Chilkat.JsonObject")
success = jResp.LoadSb(sbResponseBody)
jResp.EmitCompact = 0

outFile.WriteLine("Response Body:")
outFile.WriteLine(jResp.Emit())

respStatusCode = resp.StatusCode
outFile.WriteLine("Response Status Code = " & respStatusCode)
If (respStatusCode >= 400) Then
    outFile.WriteLine("Response Header:")
    outFile.WriteLine(resp.Header)
    outFile.WriteLine("Failed.")
    WScript.Quit
End If

'  Sample JSON response:
'  (Sample code for parsing the JSON response is shown below)

'  {
'    "feedId": "BC141881F6BB4B5891F084B225581BF2@AUUBAQA"
'  }

'  Sample code for parsing the JSON response...
'  Use the following online tool to generate parsing code from sample JSON:
'  Generate Parsing Code from JSON

feedId = jResp.StringOf("feedId")

outFile.Close