Initializing help system before first use

httphead

Purpose
Perform an HTTP HEAD request.
Synopsis
function httphead(url:string|text, result:string):integer
function httphead(url:string|text, result:string, xhdr:string|text):integer
Arguments
url 
URL to process
result 
File to store the result of the request
xhdr 
Additional headers to add to the request
Return value
HTTP status of the request ( e.g. 200 for success, see Section Constants for a list of predefined status code constants; value 999 indicates that an I/O error occurred during the operation) or the request number (≥1000) if asynchronous mode is active
Further information
1. The HEAD request is equivalent to a GET request except that no result is returned by the server, only the header can be retrieved (see httpgetheader).
2. An IO error will be raised if the destination file cannot be accessed.
Related topics
httppost, httpput, httppatch, httpdel, httpget, urlencode, httpcancel.
Module
mmhttp

Parent Topic Procedures and functions

© 2001-2022 Fair Isaac Corporation. All rights reserved. This documentation is the property of Fair Isaac Corporation (“FICO”). Receipt or possession of this documentation does not convey rights to disclose, reproduce, make derivative works, use, or allow others to use it except solely for internal evaluation purposes to determine whether to purchase a license to the software described in this documentation, or as otherwise set forth in a written software license agreement between you and FICO (or a FICO affiliate). Use of this documentation and the software described in it must conform strictly to the foregoing permitted uses, and no other use is permitted.