Update and existing request header. If the header does not exists in the original request, 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.

requestHeaderReceivedFromClient This scope occurs the moment fluxzy parsed the request header receiveid from client

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
appendSeparator string Only active when AddIfMissing=true When updating an existing header, this value will be used to separate the original value and the new value.

Example of usage

The following examples apply this action to any exchanges

Update the User-Agent header.

- filter:
    typeKind: AnyFilter
  - typeKind: UpdateRequestHeaderAction
    headerName: User-Agent
    headerValue: Fluxzy

.NET reference

View definition of UpdateRequestHeaderAction for .NET integration.

See also

The following actions are related to this action:

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