Set / Override an HTTP Header

Using IBM DataPower Gateway, sometimes you need to set / add / override some HTTP headers which sent by the client within the request before forwarding the request to the backend endpoint.

How to use it?

Using the XSLT:

Just drag the XSLT to your processing rule (as a transform action), set the header name & value under the 'Advanced' tab and set the INPUT & the OUTPUT of this action to NULL.

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Using the GatewayScript:

Just drag the GatewayScript to your processing rule (as a GatewayScript action), set the header name & value under the 'Advanced' tab (manually add 'HeaderName' & 'HeaderValue' parameters) and set the INPUT & the OUTPUT of this action to NULL.