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DataFlex Examples

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(DataFlex) Send XMLHttpRequest using PUT, GET, DELETE, or any HTTP Request Method

The PostXml method is the easiest way to send an XMLHttpRequest using the POST HTTP verb (which is by far the most common). To use a different HTTP request method (such as PUT, GET, DELETE, etc.), the SynchronousRequest method should be called. It provides more flexibility in constructing the exact HTTP request desired.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-9.5.0-win32.pkg

Procedure Test
    Handle hoHttp
    String sXmlStr
    String sEndpointDomain
    Integer iEndpointPort
    Boolean iEndpointSsl
    Variant vReq
    Handle hoReq
    Boolean iSuccess
    Variant vResp
    Handle hoResp
    String sTemp1
    Boolean bTemp1

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

    Get Create (RefClass(cComChilkatHttp)) To hoHttp
    If (Not(IsComObjectCreated(hoHttp))) Begin
        Send CreateComObject of hoHttp
    End

    // The XML sent in the body of the request is application
    // specified -- it should contain whatever the server-side
    // application is expecting..
    Move '<?xml version="1.0" encoding="UTF-8"?><appXml><something>123</something></appXml>' To sXmlStr

    // If the service endpoint is  "http://www.chilkatsoft.com/xmlEcho.asp",
    // then we have the following arguments to be passed to
    // SynchronousRequest:
    Move "www.chilkatsoft.com" To sEndpointDomain
    Move 80 To iEndpointPort
    Move False To iEndpointSsl

    // Prepare the HTTP request object:
    Get Create (RefClass(cComChilkatHttpRequest)) To hoReq
    If (Not(IsComObjectCreated(hoReq))) Begin
        Send CreateComObject of hoReq
    End
    Set ComPath Of hoReq To "/xmlEcho.asp"

    // This example will use the "PUT" HTTP request method
    // (also known as HTTP verb)
    Set ComHttpVerb Of hoReq To "PUT"
    Set ComContentType Of hoReq To "text/xml"
    Set ComCharset Of hoReq To "utf-8"
    Get ComLoadBodyFromString Of hoReq sXmlStr "utf-8" To iSuccess

    Get pvComObject of hoReq to vReq
    Get ComSynchronousRequest Of hoHttp sEndpointDomain iEndpointPort iEndpointSsl vReq To vResp
    If (IsComObject(vResp)) Begin
        Get Create (RefClass(cComChilkatHttpResponse)) To hoResp
        Set pvComObject Of hoResp To vResp
    End
    Get ComLastMethodSuccess Of hoHttp To bTemp1
    If (bTemp1 <> True) Begin
        Get ComLastErrorText Of hoHttp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // The raw HTTP request sent by the above call is:

    // PUT /xmlEcho.asp HTTP/1.1
    // Content-Type: text/xml
    // Host: www.chilkatsoft.com
    // Content-Length: 81
    // 
    // <?xml version="1.0" encoding="UTF-8"?><appXml><something>123</something></appXml>

    // Examine the Body of the HTTP response
    // This would be the XML response sent by the server.
    Get ComBodyStr Of hoResp To sTemp1
    Showln sTemp1

    Send Destroy of hoResp


End_Procedure

 

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