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B4X

MWS SubmitFeed (Amazon Marketplace Web Service)

See more HTTP Misc Examples

Uploads a feed for processing by Amazon MWS.

See Amazon MWS SubmitFeed for the Amazon MWS SubmitFeed reference documentation.

Important: The Chilkat v9.5.0.75 release accidentally breaks Amazon MWS (not AWS) authentication. If you need MWS with 9.5.0.75, send email to support@chilkatsoft.com for a hotfix, or revert back to v9.5.0.73, or update to a version after 9.5.0.75.

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Dim success As Boolean = False

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

'  This example will send an XML file in the HTTP request body.  
'  First we'll construct the XML, then we'll compute the MD5 digest which needs to be added as a query param..

'  Construct the following XML.   (This is just a sample XML body..)

'  <AmazonEnvelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
'      xsi:noNamespaceSchemaLocation="amzn-envelope.xsd">
'    <Header>
'      <DocumentVersion>1.01</DocumentVersion>
'      <MerchantIdentifier>M_EXAMPLE_123456</MerchantIdentifier>
'    </Header>
'    <MessageType>Product</MessageType>
'    <PurgeAndReplace>false</PurgeAndReplace>
'    <Message>
'      <MessageID>1</MessageID>
'      <OperationType>Update</OperationType>
'      <Product>
'        <SKU>56789</SKU>
'        <StandardProductID>
'          <Type>ASIN</Type>
'          <Value>B0EXAMPLEG</Value>
'        </StandardProductID>
'        <ProductTaxCode>A_GEN_NOTAX</ProductTaxCode>
'        <DescriptionData>
'          <Title>Example Product Title</Title>
'          <Brand>Example Product Brand</Brand>
'          <Description>This is an example product description.</Description>
'          <BulletPoint>Example Bullet Point 1</BulletPoint>
'          <BulletPoint>Example Bullet Point 2</BulletPoint>
'          <MSRP currency="USD">25.19</MSRP>
'          <Manufacturer>Example Product Manufacturer</Manufacturer>
'          <ItemType>example-item-type</ItemType>
'        </DescriptionData>
'        <ProductData>
'          <Health>
'            <ProductType>
'              <HealthMisc>
'                <Ingredients>Example Ingredients</Ingredients>
'                <Directions>Example Directions</Directions>
'              </HealthMisc>
'            </ProductType>
'          </Health>
'        </ProductData>
'      </Product>
'    </Message>
'  </AmazonEnvelope>

'  This code was generated by pasting the above XML into the online tool at http://tools.chilkat.io/xmlCreate.cshtml
Dim xml As ChilkatXml
xml.Initialize
xml.Tag = "AmazonEnvelope"
xml.AddAttribute("xmlns:xsi", "http://www.w3.org/2001/XMLSchema-instance")
xml.AddAttribute("xsi:noNamespaceSchemaLocation", "amzn-envelope.xsd")
xml.UpdateChildContent("Header|DocumentVersion", "1.01")
xml.UpdateChildContent("Header|MerchantIdentifier", "M_EXAMPLE_123456")
xml.UpdateChildContent("MessageType", "Product")
xml.UpdateChildContent("PurgeAndReplace", "false")
xml.UpdateChildContent("Message|MessageID", "1")
xml.UpdateChildContent("Message|OperationType", "Update")
xml.UpdateChildContent("Message|Product|SKU", "56789")
xml.UpdateChildContent("Message|Product|StandardProductID|Type", "ASIN")
xml.UpdateChildContent("Message|Product|StandardProductID|Value", "B0EXAMPLEG")
xml.UpdateChildContent("Message|Product|ProductTaxCode", "A_GEN_NOTAX")
xml.UpdateChildContent("Message|Product|DescriptionData|Title", "Example Product Title")
xml.UpdateChildContent("Message|Product|DescriptionData|Brand", "Example Product Brand")
xml.UpdateChildContent("Message|Product|DescriptionData|Description", "This is an example product description.")
xml.UpdateChildContent("Message|Product|DescriptionData|BulletPoint", "Example Bullet Point 1")
xml.UpdateChildContent("Message|Product|DescriptionData|BulletPoint[1]", "Example Bullet Point 2")
xml.UpdateAttrAt("Message|Product|DescriptionData|MSRP", True, "currency", "USD")
xml.UpdateChildContent("Message|Product|DescriptionData|MSRP", "25.19")
xml.UpdateChildContent("Message|Product|DescriptionData|Manufacturer", "Example Product Manufacturer")
xml.UpdateChildContent("Message|Product|DescriptionData|ItemType", "example-item-type")
xml.UpdateChildContent("Message|Product|ProductData|Health|ProductType|HealthMisc|Ingredients", "Example Ingredients")
xml.UpdateChildContent("Message|Product|ProductData|Health|ProductType|HealthMisc|Directions", "Example Directions")

'  Get the XML in the most compact form for the feed submission.
Dim sbXml As ChilkatStringBuilder
sbXml.Initialize
xml.EmitCompact = True
xml.GetXmlSb(sbXml)

'  Get the MD5 hash..
Dim crypt As ChilkatCrypt2
crypt.Initialize("crypt")
crypt.HashAlgorithm = "md5"
Dim contentMd5Value As String = crypt.HashStringENC(sbXml.GetAsString)

Dim rest As ChilkatRest
rest.Initialize("rest")

'  Connect to the Amazon MWS REST server.
'  
'  Make sure to connect to the correct Amazon MWS Endpoing, otherwise
'  you'll get an HTTP 401 response code.
'  
'  The possible servers are:
'  
'  North America (NA) 	https://mws.amazonservices.com
'  Europe (EU) 	https://mws-eu.amazonservices.com
'  India (IN) 	https://mws.amazonservices.in
'  China (CN) 	https://mws.amazonservices.com.cn
'  Japan (JP) 	https://mws.amazonservices.jp 
'  
Dim bTls As Boolean = True
Dim port As Int = 443
Dim bAutoReconnect As Boolean = True
success = rest.Connect("mws.amazonservices.com", port, bTls, bAutoReconnect)

rest.Host = "mws.amazonservices.com"

rest.AddQueryParam("AWSAccessKeyId", "0PB842ExampleN4ZTR2")
rest.AddQueryParam("Action", "SubmitFeed")
rest.AddQueryParam("FeedType", "_POST_PRODUCT_DATA_")
rest.AddQueryParam("MWSAuthToken", "amzn.mws.4ea38b7b-f563-7709-4bae-87aeaEXAMPLE")
rest.AddQueryParam("MarketplaceId.Id.1", "ATVExampleDER")
rest.AddQueryParam("SellerId", "A1XExample5E6")
rest.AddQueryParam("ContentMD5Value", contentMd5Value)
rest.AddQueryParam("SignatureMethod", "HmacSHA256")
rest.AddQueryParam("SignatureVersion", "2")
rest.AddQueryParam("Version", "2009-01-01")

'  Add the MWS Signature param.  (Also adds the Timestamp parameter using the curent system date/time.)
rest.AddMwsSignature("POST", "/Feeds/2009-01-01", "mws.amazonservices.com", "MWS_SECRET_ACCESS_KEY_ID")

rest.AddHeader("Content-Type", "text/xml")
Dim responseXml As String = rest.FullRequestString("POST", "/Feeds/2009-01-01", sbXml.GetAsString)
If rest.LastMethodSuccess <> True Then
    Log(rest.LastErrorText)
    Return
End If


If rest.ResponseStatusCode <> 200 Then
    '  Examine the request/response to see what happened.
    Log("response status code = " & rest.ResponseStatusCode)
    Log("response status text = " & rest.ResponseStatusText)
    Log("response header: " & rest.ResponseHeader)
    Log("response body: " & responseXml)
    Log("---")
    Log("LastRequestStartLine: " & rest.LastRequestStartLine)
    Log("LastRequestHeader: " & rest.LastRequestHeader)
End If


'  Examine the XML returned in the response body.
Log(responseXml)
Log("----")
Log("Success.")