How to Apply DFE Chains to Sections of the HTTP Message

Note: This topic applies to Web - HTTP/HTML and Silverlight Vuser scripts, and to Web - HTTP/HTML steps inside Flex Vuser scripts.

After you have defined the DFE chains that are available to a Vuser script, enabled and configured DFE support, you must define to which sections of the HTTP messages to apply the DFE chains, as described below. Applying DFE chains to message sections is the last step in implementing DFE support.

  1. Open the Vuser script in VuGen.
  2. Click Record > Recording Options > Data Format Extension > Code Generation.

    For details on the dialog box options, see Data Format Extension > Chain Configuration Recording Options.

  3. [Optional] In the <message section> pane, click Body add then select the chain that will be applied to the message body.
  4. [Optional] In the <message section> pane, click Headers add then select the chains that will be applied to the message headers.

    Note: For VuGen to correctly assign the chain to a specific header, the entry in the Name column must be exactly the same as the name of the header in the message.

  5. [Optional] In the <message section> pane, click Cookies add then select the chains that will be applied to the message cookies.

    Note: For VuGen to correctly assign the chain to a specific cookie, the entry in the Name column must be exactly the same as the name of the cookie in the message.

  6. [Optional] In the <message section> pane, click Query String add then select the chain that will be applied to the message query string.

Note: Whereas you can modify only the default chain for the Body and Query String sections, you can add multiple chains for the Headers and Cookies sections.

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