DataFlex

S3 List Buckets using an STS Session Token

See more AWS Security Token Service Examples

This is an example showing how to use an STS session token in an Amazon AWS request. This example will list S3 buckets using a previously obtained session token. DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoXmlToken
    Handle hoRest
    Boolean iBTls
    Integer iPort
    Boolean iBAutoReconnect
    Variant vAuthAws
    Handle hoAuthAws
    Variant vSbResponse
    Handle hoSbResponse
    Integer iStatusCode
    Handle hoXml
    String sTemp1

    Move False To iSuccess

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

    // See Get AWS STS Session Token for sample code to get the session token XML.
    Get Create (RefClass(cComChilkatXml)) To hoXmlToken
    If (Not(IsComObjectCreated(hoXmlToken))) Begin
        Send CreateComObject of hoXmlToken
    End
    Get ComLoadXmlFile Of hoXmlToken "qa_data/tokens/aws_session_token.xml" To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoXmlToken To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get Create (RefClass(cComChilkatRest)) To hoRest
    If (Not(IsComObjectCreated(hoRest))) Begin
        Send CreateComObject of hoRest
    End

    // Connect to the Amazon AWS REST server.
    Move True To iBTls
    Move 443 To iPort
    Move True To iBAutoReconnect
    Get ComConnect Of hoRest "s3.amazonaws.com" iPort iBTls iBAutoReconnect To iSuccess

    // Provide AWS credentials for the REST call.
    Get Create (RefClass(cComChilkatAuthAws)) To hoAuthAws
    If (Not(IsComObjectCreated(hoAuthAws))) Begin
        Send CreateComObject of hoAuthAws
    End

    // The purpose of this example is to show how to use the temporary AccessKeyId, SecretAccessKey, and SessionToken.
    Get ComGetChildContent Of hoXmlToken "GetSessionTokenResult|Credentials|AccessKeyId" To sTemp1
    Set ComAccessKey Of hoAuthAws To sTemp1
    Get ComGetChildContent Of hoXmlToken "GetSessionTokenResult|Credentials|SecretAccessKey" To sTemp1
    Set ComSecretKey Of hoAuthAws To sTemp1
    Set ComServiceName Of hoAuthAws To "s3"
    Get pvComObject of hoAuthAws to vAuthAws
    Get ComSetAuthAws Of hoRest vAuthAws To iSuccess

    Get ComGetChildContent Of hoXmlToken "GetSessionTokenResult|Credentials|SessionToken" To sTemp1
    Get ComAddQueryParam Of hoRest "X-Amz-Security-Token" sTemp1 To iSuccess

    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbResponse
    If (Not(IsComObjectCreated(hoSbResponse))) Begin
        Send CreateComObject of hoSbResponse
    End
    Get pvComObject of hoSbResponse to vSbResponse
    Get ComFullRequestNoBodySb Of hoRest "GET" "/" vSbResponse To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoRest To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComResponseStatusCode Of hoRest To iStatusCode
    Showln "Response status code = " iStatusCode

    Get Create (RefClass(cComChilkatXml)) To hoXml
    If (Not(IsComObjectCreated(hoXml))) Begin
        Send CreateComObject of hoXml
    End
    Get pvComObject of hoSbResponse to vSbResponse
    Get ComLoadSb Of hoXml vSbResponse True To iSuccess
    Get ComGetXml Of hoXml To sTemp1
    Showln sTemp1

    If (iStatusCode <> 200) Begin
        Showln "Failed.  See error information in the XML."
        Procedure_Return
    End



End_Procedure