(Swift 3,4,5...) Walmart - Update Inventory for an Item

Demonstrates how to update inventory for an item.

Note: This example requires Chilkat v9.5.0.67 or greater.

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func chilkatTest() {
    // 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}

    let sbUrl = CkoStringBuilder()!
    var success: Bool = sbUrl.append("https://marketplace.walmartapis.com/v2/inventory?sku={SKU}")
    var numReplaced: Int = sbUrl.replace("{SKU}", replacement: "HOPP~904~51041").intValue

    var requestMethod: String? = "PUT"

    // First we need to generate a signature for our request.
    // The signature needs to be re-generated for each new Walmart HTTP request.
    let authUtil = CkoAuthUtil()!

    var wmConsumerId: String? = "WALMART_CONSUMER_ID"
    var wmPrivateKey: String? = "WALMART_PRIVATE_KEY"
    var jsonStr: String? = authUtil.walmartSignature(sbUrl.getAsString(), consumerId: wmConsumerId, privateKey: wmPrivateKey, requestMethod: requestMethod)
    if authUtil.lastMethodSuccess != true {
        print("\(authUtil.lastErrorText!)")
        return
    }

    // 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
    let json = CkoJsonObject()!
    json.load(jsonStr)

    let http = CkoHttp()!
    http.setRequestHeader("WM_SVC.NAME", value: "Walmart Marketplace")
    http.setRequestHeader("WM_QOS.CORRELATION_ID", value: json.string(of: "correlation_id"))
    http.setRequestHeader("WM_SEC.TIMESTAMP", value: json.string(of: "timestamp"))
    http.setRequestHeader("WM_SEC.AUTH_SIGNATURE", value: json.string(of: "signature"))
    http.setRequestHeader("WM_CONSUMER.ID", value: wmConsumerId)
    http.accept = "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:
    var originalAmount: Int = 234

    let xmlBody = CkoXml()!
    xmlBody.tag = "wm:inventory"
    xmlBody.addAttribute("xmlns:wm", value: "http://walmart.com/")
    xmlBody.updateChildContent("wm:sku", value: "HOPP~904~51041")
    xmlBody.updateChildContent("wm:quantity|wm:unit", value: "EACH")
    xmlBody.updateChildContentInt("wm:quantity|wm:amount", value: originalAmount + 1)
    xmlBody.updateChildContent("wm:fulfillmentLagTime", value: "5")

    print("PUT request body:")
    print("\(xmlBody.getXml()!)")
    print("--")

    // This is a simple PUT that can be sent w/ the PutText method.
    var xmlStr: String? = http.putText(sbUrl.getAsString(), textData: xmlBody.getXml(), charset: "utf-8", contentType: "application/xml", md5: false, gzip: false)
    if http.lastMethodSuccess != true {
        print("\(http.lastErrorText!)")
        return
    }

    let xml = CkoXml()!
    xml.load(xmlStr)

    // A successful response should have a 200 response status
    if http.lastStatus.intValue != 200 {
        print("\(xml.getXml()!)")
        print("Response Status Code: \(http.lastStatus.intValue)")
        print("Failed.")
        return
    }

    // A sample XML response is shown below..
    print("\(xml.getXml()!)")
    print("--")
    print("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>

}