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Create Session VI

LabVIEW 2013 Help

Edition Date: June 2013

Part Number: 371361K-01

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Owning Palette: Sessions VIs

Requires: Full Development System (Windows)

Creates an HTTP session for the current HTTP request.

Note  For more information about concepts in this topic, refer to the Web services introduction and tutorial.

LabVIEW Web Service Request is an identifier used by Web Services VIs to reference a specific HTTP request. LabVIEW Web Service Request works similarly to a refnum in LabVIEW, allowing you to wire together Web Services Vis within your application. You must wire Web Services Vis to the LabVIEW Web Service Request control or an existing value from the LabVIEW Web Service Request out terminal of another VI.

When you use Web Services VI(s) within a Web method VI, you must assign the original LabVIEW Web Service Request control to the connector pane of the Web method VI.
timeout (60000 msec) specifies the maximum idle time, in milliseconds, before a HTTP session times out. The VI completes execution immediately after creating the session. The Web Server monitors and deletes the session after the session times out. If you specify zero or less as the value, the VI uses the default value (60000 msec).
error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
LabVIEW Web Service Request out is an identifier that VIs on the Web Services palette use to reference a specific HTTP request. Use LabVIEW Web Service Request out to wire together Web Services Vis within your application.
session ID cookie returns a client-side cookie that allows the server to reuse the same HTTP session when the same Web client submits another HTTP request. The cookie remains valid while the browser on the Web client is open.
error out contains error information. This output provides standard error out functionality.

 

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