(VB.NET) Amazon SP-API Create Feed

See more Amazon SP-API Examples

Creates a feed. Amazon returns a feedDocumentId value, encryption details, and a URL for uploading the feed contents.

For more information, see https://developer-docs.amazon.com/sp-api/docs/feeds-api-v2020-09-04-use-case-guide

Chilkat .NET Downloads Chilkat .NET Framework Chilkat for .NET Core

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


Dim authAws As New Chilkat.AuthAws
authAws.AccessKey = "AWS_ACCESS_KEY"
authAws.SecretKey = "AWS_SECRET_KEY"
authAws.ServiceName = "execute-api"
' Use the region that is correct for your needs.
authAws.Region = "eu-west-1"

Dim rest As New Chilkat.Rest
Dim success As Boolean = rest.Connect("sellingpartnerapi-eu.amazon.com",443,True,True)
If (success = False) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If


success = rest.SetAuthAws(authAws)

' Load the previously obtained LWA access token.
' See Fetch SP-API LWA Access Token
Dim jsonToken As New Chilkat.JsonObject
success = jsonToken.LoadFile("qa_data/tokens/sp_api_lwa_token.json")
If (success = False) Then
    Debug.WriteLine("Failed to load LWA access token.")
    Exit Sub
End If



' Add the x-amz-access-token request header.
Dim lwa_token As String = jsonToken.StringOf("access_token")

Dim jsonReq As New Chilkat.JsonObject
jsonReq.UpdateString("contentType","text/tab-separated-values; charset=UTF-8")

Dim sbRequest As New Chilkat.StringBuilder
jsonReq.EmitSb(sbRequest)

rest.ClearAllQueryParams()
rest.ClearAllHeaders()
rest.AddHeader("x-amz-access-token",lwa_token)

Dim sbResponse As New Chilkat.StringBuilder
Dim path As String = "/feeds/2021-06-30/documents"
success = rest.FullRequestSb("POST",path,sbRequest,sbResponse)
If (success = False) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If


' Examine the response status.
Dim statusCode As Integer = rest.ResponseStatusCode
Debug.WriteLine("statusCode: " & statusCode)

If (statusCode <> 201) Then
    Debug.WriteLine("Response status text: " & rest.ResponseStatusText)
    Debug.WriteLine("Response body: ")
    Debug.WriteLine(sbResponse.GetAsString())
    Debug.WriteLine("Failed.")
    Exit Sub
End If


Debug.WriteLine(sbResponse.GetAsString())

' If successful, gets a JSON response such as the following:

' {
'   "feedDocumentId": "3d4e42b5-1d6e-44e8-a89c-2abfca0625bb",
'   "url": "https://d34o8swod1owfl.cloudfront.net/Feed_101__POST_PRODUCT_DATA_.xml"
' }


' Use this online tool to generate parsing code from sample JSON: 
' Generate Parsing Code from JSON

Dim json As New Chilkat.JsonObject

json.LoadSb(sbResponse)

Dim feedDocumentId As String = json.StringOf("feedDocumentId")
Dim url As String = json.StringOf("url")

' Save the JSON to a file for the example that constructs the XML feed and uploads..
success = json.WriteFile("qa_data/json/sp_api_feed_upload_info.json")

Debug.WriteLine("Success!")