(Ruby) Walmart - Get Inventory for an Item

Demonstrates how to get inventory for an item and parse the result.

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

# ---------------------------------------------------------------------------------------------------------
# Note: This example is deprecated.  The Walmart API no longer uses the Signature method of authenticating.
# Walmart now uses OAuth2.  
# ---------------------------------------------------------------------------------------------------------

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

# Sends the following GET request:
# GET https://marketplace.walmartapis.com/v2/inventory?sku={SKU}

sbUrl = Chilkat::CkStringBuilder.new()
success = sbUrl.Append("https://marketplace.walmartapis.com/v2/inventory?sku={SKU}")
numReplaced = sbUrl.Replace("{SKU}","HOPP~904~51041")

requestMethod = "GET"

# First we need to generate a signature for our request.
# The signature needs to be re-generated for each new Walmart HTTP request.
authUtil = Chilkat::CkAuthUtil.new()

wmConsumerId = "WALMART_CONSUMER_ID"
wmPrivateKey = "WALMART_PRIVATE_KEY"
jsonStr = authUtil.walmartSignature(sbUrl.getAsString(),wmConsumerId,wmPrivateKey,requestMethod)
if (authUtil.get_LastMethodSuccess() != true)
    print authUtil.lastErrorText() + "\n";
    exit
end

# The JSON returned by WalmartSignature contains the values to be used in the following
# header fields: WM_SEC.AUTH_SIGNATURE, WM_SEC.TIMESTAMP, and WM_QOS.CORRELATION_ID
json = Chilkat::CkJsonObject.new()
json.Load(jsonStr)

http = Chilkat::CkHttp.new()
http.SetRequestHeader("WM_SVC.NAME","Walmart Marketplace")
http.SetRequestHeader("WM_QOS.CORRELATION_ID",json.stringOf("correlation_id"))
http.SetRequestHeader("WM_SEC.TIMESTAMP",json.stringOf("timestamp"))
http.SetRequestHeader("WM_SEC.AUTH_SIGNATURE",json.stringOf("signature"))
http.SetRequestHeader("WM_CONSUMER.ID",wmConsumerId)
http.put_Accept("application/xml")

# Note: Do not explicitly set the "Host" header.  Chilkat will set it automatically.

xmlStr = http.quickGetStr(sbUrl.getAsString())
if (http.get_LastMethodSuccess() != true)
    print http.lastErrorText() + "\n";
    exit
end

xml = Chilkat::CkXml.new()
xml.LoadXml(xmlStr)

# A successful response should have a 200 response status
if (http.get_LastStatus() != 200)
    print xml.getXml() + "\n";
    print "Response Status Code: " + http.get_LastStatus().to_s() + "\n";
    print "Failed." + "\n";
    exit
end

# A sample XML response is shown below..
print xml.getXml() + "\n";
print "--" + "\n";

# To get the quantity:
quantity = xml.GetChildIntValue("quantity|amount")
print "quantity = " + quantity.to_s() + "\n";

# ---------------------------------------
# Sample XML response
# ---------------------------------------

# <?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
# <inventory xmlns="http://walmart.com/">
#     <sku>HOPP~904~51041</sku>
#     <quantity>
#         <unit>EACH</unit>
#         <amount>234</amount>
#     </quantity>
#     <fulfillmentLagTime>5</fulfillmentLagTime>
# </inventory>