(PureBasic) 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 PureBasic Module Download Chilkat PureBasic Module

IncludeFile "CkStringBuilder.pb"
IncludeFile "CkAuthAws.pb"
IncludeFile "CkJsonObject.pb"
IncludeFile "CkRest.pb"

Procedure ChilkatExample()

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

    authAws.i = CkAuthAws::ckCreate()
    If authAws.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkAuthAws::setCkAccessKey(authAws, "AWS_ACCESS_KEY")
    CkAuthAws::setCkSecretKey(authAws, "AWS_SECRET_KEY")
    CkAuthAws::setCkServiceName(authAws, "execute-api")
    ; Use the region that is correct for your needs.
    CkAuthAws::setCkRegion(authAws, "eu-west-1")

    rest.i = CkRest::ckCreate()
    If rest.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success.i = CkRest::ckConnect(rest,"sellingpartnerapi-eu.amazon.com",443,1,1)
    If success = 0
        Debug CkRest::ckLastErrorText(rest)
        CkAuthAws::ckDispose(authAws)
        CkRest::ckDispose(rest)
        ProcedureReturn
    EndIf

    success = CkRest::ckSetAuthAws(rest,authAws)

    ; Load the previously obtained LWA access token.
    ; See Fetch SP-API LWA Access Token
    jsonToken.i = CkJsonObject::ckCreate()
    If jsonToken.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success = CkJsonObject::ckLoadFile(jsonToken,"qa_data/tokens/sp_api_lwa_token.json")
    If success = 0
        Debug "Failed to load LWA access token."
        CkAuthAws::ckDispose(authAws)
        CkRest::ckDispose(rest)
        CkJsonObject::ckDispose(jsonToken)
        ProcedureReturn
    EndIf

    ; Add the x-amz-access-token request header.
    lwa_token.s = CkJsonObject::ckStringOf(jsonToken,"access_token")

    jsonReq.i = CkJsonObject::ckCreate()
    If jsonReq.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkJsonObject::ckUpdateString(jsonReq,"contentType","text/tab-separated-values; charset=UTF-8")

    sbRequest.i = CkStringBuilder::ckCreate()
    If sbRequest.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkJsonObject::ckEmitSb(jsonReq,sbRequest)

    CkRest::ckClearAllQueryParams(rest)
    CkRest::ckClearAllHeaders(rest)
    CkRest::ckAddHeader(rest,"x-amz-access-token",lwa_token)

    sbResponse.i = CkStringBuilder::ckCreate()
    If sbResponse.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    path.s = "/feeds/2021-06-30/documents"
    success = CkRest::ckFullRequestSb(rest,"POST",path,sbRequest,sbResponse)
    If success = 0
        Debug CkRest::ckLastErrorText(rest)
        CkAuthAws::ckDispose(authAws)
        CkRest::ckDispose(rest)
        CkJsonObject::ckDispose(jsonToken)
        CkJsonObject::ckDispose(jsonReq)
        CkStringBuilder::ckDispose(sbRequest)
        CkStringBuilder::ckDispose(sbResponse)
        ProcedureReturn
    EndIf

    ; Examine the response status.
    statusCode.i = CkRest::ckResponseStatusCode(rest)
    Debug "statusCode: " + Str(statusCode)

    If statusCode <> 201
        Debug "Response status text: " + CkRest::ckResponseStatusText(rest)
        Debug "Response body: "
        Debug CkStringBuilder::ckGetAsString(sbResponse)
        Debug "Failed."
        CkAuthAws::ckDispose(authAws)
        CkRest::ckDispose(rest)
        CkJsonObject::ckDispose(jsonToken)
        CkJsonObject::ckDispose(jsonReq)
        CkStringBuilder::ckDispose(sbRequest)
        CkStringBuilder::ckDispose(sbResponse)
        ProcedureReturn
    EndIf

    Debug CkStringBuilder::ckGetAsString(sbResponse)

    ; 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

    json.i = CkJsonObject::ckCreate()
    If json.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkJsonObject::ckLoadSb(json,sbResponse)

    feedDocumentId.s = CkJsonObject::ckStringOf(json,"feedDocumentId")
    url.s = CkJsonObject::ckStringOf(json,"url")

    ; Save the JSON to a file for the example that constructs the XML feed and uploads..
    success = CkJsonObject::ckWriteFile(json,"qa_data/json/sp_api_feed_upload_info.json")

    Debug "Success!"


    CkAuthAws::ckDispose(authAws)
    CkRest::ckDispose(rest)
    CkJsonObject::ckDispose(jsonToken)
    CkJsonObject::ckDispose(jsonReq)
    CkStringBuilder::ckDispose(sbRequest)
    CkStringBuilder::ckDispose(sbResponse)
    CkJsonObject::ckDispose(json)


    ProcedureReturn
EndProcedure