Initializing help system before first use

httpgetheader

Purpose
Extract the HTTP header of a result file.
Synopsis
function httpgetheader(sfile:string|text):text
function httpgetheader(sfile:string|text, dfile:string|text):text
Arguments
sfile 
Name of the file to process
dfile 
Destination file (can be the same as sfile)
Return value
Header of the result document
Further information
1. Result files of queries inlude the HTTP header when the parameter http_keephdr is set to true: this function returns the header of a result file when this setting is active.
2. The optional destination file dfile receives a copy of the original result file after the header has been removed.
3. An IO error will be raised in case of failure during a file operation.
Related topics
httpget, httppost, httpput, httppatch, httpdel.
Module
mmhttp

Parent Topic Procedures and functions

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