Chilkat Examples

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DataFlex Examples

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(DataFlex) REST through SOCKS Proxy

Demonstrates how to connect through a SOCKS proxy to make REST API calls.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-9.5.0-win32.pkg

Procedure Test
    Handle hoRest
    Variant vSocket
    Handle hoSocket
    Boolean iBTls
    Integer iPort
    Integer iMaxWaitMs
    Boolean iSuccess
    Variant vAuthAws
    Handle hoAuthAws
    String sResponseXml
    Handle hoXml
    String sTemp1
    Integer iTemp1
    Boolean bTemp1

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

    // This example connects to a REST server through a SOCKS proxy.
    // It will connect to the Amazon AWS service for this example.
    Get Create (RefClass(cComChilkatRest)) To hoRest
    If (Not(IsComObjectCreated(hoRest))) Begin
        Send CreateComObject of hoRest
    End
    Get Create (RefClass(cComChilkatSocket)) To hoSocket
    If (Not(IsComObjectCreated(hoSocket))) Begin
        Send CreateComObject of hoSocket
    End

    // Set the SOCKS proxy domain or IP address, port, and SOCKS version number (4 or 5)
    Set ComSocksHostname Of hoSocket To "192.168.1.100"
    Set ComSocksPort Of hoSocket To 1080
    Set ComSocksVersion Of hoSocket To 5
    // Other properties exist for specifying a SOCKS proxy login and password,
    // but these are not used in this example.

    // Connect through the HTTP proxy to the Amazon AWS server for the S3 service.
    Move True To iBTls
    Move 443 To iPort
    Move 5000 To iMaxWaitMs
    Get ComConnect Of hoSocket "s3.amazonaws.com" iPort iBTls iMaxWaitMs To iSuccess
    If (iSuccess <> True) Begin
        Get ComConnectFailReason Of hoSocket To iTemp1
        Showln "Connect Failure Error Code: " iTemp1
        Get ComLastErrorText Of hoSocket To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Use the proxied TLS connection:
    Get pvComObject of hoSocket to vSocket
    Get ComUseConnection Of hoRest vSocket True To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoRest To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Provide AWS credentials for the REST call.
    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 "s3"
    Get pvComObject of hoAuthAws to vAuthAws
    Get ComSetAuthAws Of hoRest vAuthAws To iSuccess

    // List all buckets for the account...
    Get ComFullRequestNoBody Of hoRest "GET" "/" To sResponseXml
    Get ComLastMethodSuccess Of hoRest To bTemp1
    If (bTemp1 <> True) Begin
        Get ComLastErrorText Of hoRest To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get Create (RefClass(cComChilkatXml)) To hoXml
    If (Not(IsComObjectCreated(hoXml))) Begin
        Send CreateComObject of hoXml
    End
    Get ComLoadXml Of hoXml sResponseXml To iSuccess

    // Show the full XML returned.
    Get ComGetXml Of hoXml To sTemp1
    Showln sTemp1

    // Iterate over the buckets, showing each bucket name.
    Get ComFindChild2 Of hoXml "Buckets" To iSuccess
    Get ComFirstChild2 Of hoXml To bTemp1
    If (bTemp1 = True) Begin
        Get ComGetChildContent Of hoXml "Name" To sTemp1
        Showln sTemp1
        While ((ComNextSibling2(hoXml)) = True)
            Get ComGetChildContent Of hoXml "Name" To sTemp1
            Showln sTemp1
        Loop

    End

    // Move the internal pointer back to the root node.
    Send ComGetRoot2 To hoXml


End_Procedure

 

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