Set HTTP Header VI

Owning Palette: Output VIs

Requires: Full Development System (Windows)

Sets an HTTP header in the response stream of the current HTTP request. The top-level VI must be configured to use streaming. Refer to the World Wide Web Consortium website at www.w3.org for header field definitions along with example headers, descriptions, and syntax.

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

Add to the block diagram

Find on the palette

	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.
	header specifies the header field to assign a value. Refer to the World Wide Web Consortium header field definitions for example headers, along with descriptions and syntax.
	header value specifies the value of the header field.
	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.
	error out contains error information. This output provides standard error out functionality.