B4X

Amazon MWS Upload Invoice

See more Amazon MWS Examples

Demonstrates how to upload an invoice using _UPLOAD_VAT_INVOICE_FeedType to submit an invoice for an order. B4X

Dim success As Boolean = False

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

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

'  Connect to the Amazon MWS REST server.
'  
'  Make sure to connect to the correct Amazon MWS Endpoint, otherwise
'  you'll get an HTTP 401 response code.
'  
'  See Amazon MWS endpoints and MarketplaceId values

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"

'  MarketplaceList.Id parameter �This should be the marketplace in which the order was placed. Only one marketplace must be used per order.T
'  Here are the marketplace ID's
'  Spain: A1RKKUPIHCS9HS
'  UK: A1F83G8C2ARO7P
'  France: A13V1IB3VIYZZH
'  Germany: A1PA6795UKMFR9
'  Italy: APJ6JRA9NG5V4
'  ...
'  (See https://docs.developer.amazonservices.com/en_US/dev_guide/DG_Endpoints.html)

'  FeedOptions parameter � Seller can input key value pairs to give important metadata along with the PDF invoice.
rest.AddQueryParam("FeedOptions", "metadata:orderid=206-2341234-3455465;metadata:invoicenumber=INT-3431-XJE3;metadata:documenttype=Invoice")

'  Load the PDF invoice file that is to be the body of the HTTP POST request.
Dim pdfData As ChilkatBinData
pdfData.Initialize
success = pdfData.LoadFile("qa_data/pdf/sample.pdf")

'  Get the MD5 hash of the PDF data.
Dim crypt As ChilkatCrypt2
crypt.Initialize("crypt")
crypt.HashAlgorithm = "md5"
crypt.EncodingMode = "base64"
Dim md5Hash As String = crypt.HashBdENC(pdfData)

rest.AddQueryParam("AWSAccessKeyId", "0PB842ExampleN4ZTR2")
rest.AddQueryParam("Action", "SubmitFeed")
rest.AddQueryParam("FeedType", "_UPLOAD_VAT_INVOICE_")
rest.AddQueryParam("MWSAuthToken", "EXAMPLE-amzn.mws.4ea38b7b-f563-7709-4bae-87aea-EXAMPLE")

rest.AddQueryParam("MarketplaceIdList.Id.1", "ATVExampleDER")
rest.AddQueryParam("SellerId", "A1XExample5E6")
rest.AddQueryParam("ContentMD5Value", md5Hash)
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", "YOUR_MWS_SECRET_ACCESS_KEY_ID")

rest.AddHeader("Content-Type", "application/octet-stream")
Dim sbResponseBody As ChilkatStringBuilder
sbResponseBody.Initialize
success = rest.FullRequestBd("POST", "/Feeds/2009-01-01", pdfData, sbResponseBody)
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: " & sbResponseBody.GetAsString)
    Log("---")
    Log("LastRequestStartLine: " & rest.LastRequestStartLine)
    Log("LastRequestHeader: " & rest.LastRequestHeader)
End If


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