GetHttpHeader ( headers ; searchHdr )

Get the value of a single http header from the list of headers returned by cURL options --D

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Colin Fallon
Colin Fallon
http://none.com

Sample input:

GetHttpHeader ( $headers ; "Last-Modified" )

Sample output:

Thu, 25 May 2017 14:52:05 GMT

Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

Let (
[
	$hdrCount = ValueCount ( headers );
	$nextValue = GetValue ( headers ; 1 );
	$nextHdr = Left ( $nextValue ; Length ( searchHdr ) )

];

If ( $nextHdr = searchHdr ;
	Right ( $nextValue ; Length ( $nextValue ) - Length ( searchHdr ) - 2 )
;
	If ( $hdrCount = 1 ; "" ; GetHttpHeader (RightValues ( headers ; $hdrCount - 1 ); searchHdr))
)
)

// Example to get the Last-Modified header

Insert From URL [ Select ; With dialog: Off ; $json ; "http://www.mysite.com/resource.json" ; cURL options: "--D $headers"
Set Field [ Table::Last_Mod_Date ; GetHttpHeader ( $headers ; "Last-Modified" )

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Note: these functions are not guaranteed or supported by BrianDunning.com. Please contact the individual developer with any questions or problems.

GetHttpHeader ( headers ; searchHdr )

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