xdmp:get-request-header

xdmp:get-request-header(
   $name as xs:string,
   [$default as xs:string?]
) as xs:string*

Returns the value of a named request header.

Parameters
$name	Request header name.
$default	A default value to return if there is no request header.

xdmp:get-request-header("A")
=> "foo"

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Comments

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stevespigarelli
Are header names case-sensitive?
- stevespigarelli
  Looks like they aren't.
johncraft
This isn't totally obvious, but if you want to get the name of the server you can use xdmp:get-request-header("Host")
- eedeebee
  The Host header will have the name of the Host from the client (aka browser aka user agent) perspective. That is, it will have the hostname that was in the URL, which may, or may not, be what you want.
  - johncraft
    Exactly what I wanted and something I suspect others will want, too.
    - eedeebee
      FYI the Host header may not come with HTTP/1.0 requests. It was added in HTTP/1.1.