(DataFlex) 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 ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-9.5.0-win32.pkg

Procedure Test
    Variant vAuthAws
    Handle hoAuthAws
    Handle hoRest
    Boolean iSuccess
    Handle hoJsonToken
    String sLwa_token
    Handle hoJsonReq
    Variant vSbRequest
    Handle hoSbRequest
    Variant vSbResponse
    Handle hoSbResponse
    String sPath
    Integer iStatusCode
    Handle hoJson
    String sFeedDocumentId
    String sUrl
    String sTemp1

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

    Get Create (RefClass(cComChilkatAuthAws)) To hoAuthAws
    If (Not(IsComObjectCreated(hoAuthAws))) Begin
        Send CreateComObject of hoAuthAws
    End
    Set ComAccessKey Of hoAuthAws To "AWS_ACCESS_KEY"
    Set ComSecretKey Of hoAuthAws To "AWS_SECRET_KEY"
    Set ComServiceName Of hoAuthAws To "execute-api"
    // Use the region that is correct for your needs.
    Set ComRegion Of hoAuthAws To "eu-west-1"

    Get Create (RefClass(cComChilkatRest)) To hoRest
    If (Not(IsComObjectCreated(hoRest))) Begin
        Send CreateComObject of hoRest
    End
    Get ComConnect Of hoRest "sellingpartnerapi-eu.amazon.com" 443 True True To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoRest To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get pvComObject of hoAuthAws to vAuthAws
    Get ComSetAuthAws Of hoRest vAuthAws To iSuccess

    // Load the previously obtained LWA access token.
    // See Fetch SP-API LWA Access Token
    Get Create (RefClass(cComChilkatJsonObject)) To hoJsonToken
    If (Not(IsComObjectCreated(hoJsonToken))) Begin
        Send CreateComObject of hoJsonToken
    End
    Get ComLoadFile Of hoJsonToken "qa_data/tokens/sp_api_lwa_token.json" To iSuccess
    If (iSuccess = False) Begin
        Showln "Failed to load LWA access token."
        Procedure_Return
    End

    // Add the x-amz-access-token request header.
    Get ComStringOf Of hoJsonToken "access_token" To sLwa_token

    Get Create (RefClass(cComChilkatJsonObject)) To hoJsonReq
    If (Not(IsComObjectCreated(hoJsonReq))) Begin
        Send CreateComObject of hoJsonReq
    End
    Get ComUpdateString Of hoJsonReq "contentType" "text/tab-separated-values; charset=UTF-8" To iSuccess

    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbRequest
    If (Not(IsComObjectCreated(hoSbRequest))) Begin
        Send CreateComObject of hoSbRequest
    End
    Get pvComObject of hoSbRequest to vSbRequest
    Get ComEmitSb Of hoJsonReq vSbRequest To iSuccess

    Get ComClearAllQueryParams Of hoRest To iSuccess
    Get ComClearAllHeaders Of hoRest To iSuccess
    Get ComAddHeader Of hoRest "x-amz-access-token" sLwa_token To iSuccess

    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbResponse
    If (Not(IsComObjectCreated(hoSbResponse))) Begin
        Send CreateComObject of hoSbResponse
    End
    Move "/feeds/2021-06-30/documents" To sPath
    Get pvComObject of hoSbRequest to vSbRequest
    Get pvComObject of hoSbResponse to vSbResponse
    Get ComFullRequestSb Of hoRest "POST" sPath vSbRequest vSbResponse To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoRest To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Examine the response status.
    Get ComResponseStatusCode Of hoRest To iStatusCode
    Showln "statusCode: " iStatusCode

    If (iStatusCode <> 201) Begin
        Get ComResponseStatusText Of hoRest To sTemp1
        Showln "Response status text: " sTemp1
        Showln "Response body: "
        Get ComGetAsString Of hoSbResponse To sTemp1
        Showln sTemp1
        Showln "Failed."
        Procedure_Return
    End

    Get ComGetAsString Of hoSbResponse To sTemp1
    Showln sTemp1

    // 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

    Get Create (RefClass(cComChilkatJsonObject)) To hoJson
    If (Not(IsComObjectCreated(hoJson))) Begin
        Send CreateComObject of hoJson
    End

    Get pvComObject of hoSbResponse to vSbResponse
    Get ComLoadSb Of hoJson vSbResponse To iSuccess

    Get ComStringOf Of hoJson "feedDocumentId" To sFeedDocumentId
    Get ComStringOf Of hoJson "url" To sUrl

    // Save the JSON to a file for the example that constructs the XML feed and uploads..
    Get ComWriteFile Of hoJson "qa_data/json/sp_api_feed_upload_info.json" To iSuccess

    Showln "Success!"


End_Procedure