traefik-hydrate-headers

Hydrate headers from remote endpoint

Configuration

Key	Type	Required	Default	Description
appendOn.statusCodes	[]int			Remote status codes at which headers will be appended
fetchOn.cookies	[]string			Only fetch remote when any of cookies from this list present in original request
fetchOn.headers	[]string			Only fetch remote when any of headers from this list present in original request
fetchOn.or	bool		false	When both fetchOn.cookies and fetchOn.headers conditions are present, evaluate them as OR (by default as AND)
forwardHeaders	[]string			List of headers from original request to be passed to remote
headers	map[string]string	:white_check_mark:		Map of headers in which to set remote response (key is header name, value is Go template)
nextOn.statusCodes	[]int			Remote status codes at which next middleware will be called
remote.method	string		GET	Request method
remote.url	string	:white_check_mark:		Url to be fetched
statusCodeError	int		503	Status code sent to client on nextOn conditions failure

Headers template examples

Set remote body to request header

Copy
X-Example: '{{ .RemoteBody }}'

Unmarshal JSON body and set field to header

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X-User-Id: |
  {{ $user := unmarshalJson .RemoteBody }}
  {{ $user.id }}

Set remote header value to request header

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X-Example: '{{ .RemoteResponse.Header.Get "X-Remote-Header" }}'

Set original request header value to another request header

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X-Real-Ip: '{{ .Request.Header.Get "Cf-Connecting-Ip" }}'