Update and existing response header. If the header does not exists in the original response, the header will be added.
Use {{previous}} keyword to refer to the original value of the header.
Note Headers that alter the connection behaviour will be ignored.

Evaluation scope

Evaluation scope defines the timing where this filter will be applied.

responseHeaderReceivedFromRemote This scope occurs the moment fluxzy has done parsing the response header.

YAML configuration name



The following table describes the customizable properties available for this action:

Property Type Description DefaultValue
headerName string
headerValue string
addIfMissing boolean false

Example of usage

The following examples apply this action to any exchanges

Update the Server header.

- filter:
    typeKind: AnyFilter
  - typeKind: UpdateResponseHeaderAction
    headerName: Server
    headerValue: Fluxzy

.NET reference

View definition of UpdateResponseHeaderAction for .NET integration.

See also

The following actions are related to this action:

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