(PureBasic) Walmart - Update Inventory for an Item

Note: This example uses classes, properties, or methods discontinued in Chilkat v11.0.0 or greater.

Demonstrates how to update inventory for an item.

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IncludeFile "CkXml.pb"
IncludeFile "CkHttp.pb"
IncludeFile "CkStringBuilder.pb"
IncludeFile "CkAuthUtil.pb"
IncludeFile "CkJsonObject.pb"

Procedure ChilkatExample()

    ; ---------------------------------------------------------------------------------------------------------
    ; 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 PUT request:
    ; PUT https://marketplace.walmartapis.com/v2/inventory?sku={SKU}

    sbUrl.i = CkStringBuilder::ckCreate()
    If sbUrl.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success.i = CkStringBuilder::ckAppend(sbUrl,"https://marketplace.walmartapis.com/v2/inventory?sku={SKU}")
    numReplaced.i = CkStringBuilder::ckReplace(sbUrl,"{SKU}","HOPP~904~51041")

    requestMethod.s = "PUT"

    ; First we need to generate a signature for our request.
    ; The signature needs to be re-generated for each new Walmart HTTP request.
    authUtil.i = CkAuthUtil::ckCreate()
    If authUtil.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    wmConsumerId.s = "WALMART_CONSUMER_ID"
    wmPrivateKey.s = "WALMART_PRIVATE_KEY"
    jsonStr.s = CkAuthUtil::ckWalmartSignature(authUtil,CkStringBuilder::ckGetAsString(sbUrl),wmConsumerId,wmPrivateKey,requestMethod)
    If CkAuthUtil::ckLastMethodSuccess(authUtil) <> 1
        Debug CkAuthUtil::ckLastErrorText(authUtil)
        CkStringBuilder::ckDispose(sbUrl)
        CkAuthUtil::ckDispose(authUtil)
        ProcedureReturn
    EndIf

    ; 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.i = CkJsonObject::ckCreate()
    If json.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkJsonObject::ckLoad(json,jsonStr)

    http.i = CkHttp::ckCreate()
    If http.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkHttp::ckSetRequestHeader(http,"WM_SVC.NAME","Walmart Marketplace")
    CkHttp::ckSetRequestHeader(http,"WM_QOS.CORRELATION_ID",CkJsonObject::ckStringOf(json,"correlation_id"))
    CkHttp::ckSetRequestHeader(http,"WM_SEC.TIMESTAMP",CkJsonObject::ckStringOf(json,"timestamp"))
    CkHttp::ckSetRequestHeader(http,"WM_SEC.AUTH_SIGNATURE",CkJsonObject::ckStringOf(json,"signature"))
    CkHttp::ckSetRequestHeader(http,"WM_CONSUMER.ID",wmConsumerId)
    CkHttp::setCkAccept(http, "application/xml")

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

    ; The body of the PUT request will be XML that looks like this:

    ; 	<?xml version="1.0" encoding="utf-8" ?>
    ; 	<wm:inventory xmlns:wm="http://walmart.com/">
    ; 	    <wm:sku>HOPP~904~51041</wm:sku>
    ; 	    <wm:quantity>
    ; 	        <wm:unit>EACH</wm:unit>
    ; 	        <wm:amount>235</wm:amount>
    ; 	    </wm:quantity>
    ; 	    <wm:fulfillmentLagTime>5</wm:fulfillmentLagTime>
    ; 	</wm:inventory>

    ; Build the XML request body:
    originalAmount.i = 234

    xmlBody.i = CkXml::ckCreate()
    If xmlBody.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkXml::setCkTag(xmlBody, "wm:inventory")
    CkXml::ckAddAttribute(xmlBody,"xmlns:wm","http://walmart.com/")
    CkXml::ckUpdateChildContent(xmlBody,"wm:sku","HOPP~904~51041")
    CkXml::ckUpdateChildContent(xmlBody,"wm:quantity|wm:unit","EACH")
    CkXml::ckUpdateChildContentInt(xmlBody,"wm:quantity|wm:amount",originalAmount + 1)
    CkXml::ckUpdateChildContent(xmlBody,"wm:fulfillmentLagTime","5")

    Debug "PUT request body:"
    Debug CkXml::ckGetXml(xmlBody)
    Debug "--"

    ; This is a simple PUT that can be sent w/ the PutText method.
    xmlStr.s = CkHttp::ckPutText(http,CkStringBuilder::ckGetAsString(sbUrl),CkXml::ckGetXml(xmlBody),"utf-8","application/xml",0,0)
    If CkHttp::ckLastMethodSuccess(http) <> 1
        Debug CkHttp::ckLastErrorText(http)
        CkStringBuilder::ckDispose(sbUrl)
        CkAuthUtil::ckDispose(authUtil)
        CkJsonObject::ckDispose(json)
        CkHttp::ckDispose(http)
        CkXml::ckDispose(xmlBody)
        ProcedureReturn
    EndIf

    xml.i = CkXml::ckCreate()
    If xml.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkXml::ckLoadXml(xml,xmlStr)

    ; A successful response should have a 200 response status
    If CkHttp::ckLastStatus(http) <> 200
        Debug CkXml::ckGetXml(xml)
        Debug "Response Status Code: " + Str(CkHttp::ckLastStatus(http))
        Debug "Failed."
        CkStringBuilder::ckDispose(sbUrl)
        CkAuthUtil::ckDispose(authUtil)
        CkJsonObject::ckDispose(json)
        CkHttp::ckDispose(http)
        CkXml::ckDispose(xmlBody)
        CkXml::ckDispose(xml)
        ProcedureReturn
    EndIf

    ; A sample XML response is shown below..
    Debug CkXml::ckGetXml(xml)
    Debug "--"
    Debug "Success!"

    ; ---------------------------------------
    ; 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>235</amount>
    ;     </quantity>
    ;     <fulfillmentLagTime>5</fulfillmentLagTime>
    ; </inventory>


    CkStringBuilder::ckDispose(sbUrl)
    CkAuthUtil::ckDispose(authUtil)
    CkJsonObject::ckDispose(json)
    CkHttp::ckDispose(http)
    CkXml::ckDispose(xmlBody)
    CkXml::ckDispose(xml)


    ProcedureReturn
EndProcedure