Send HEAD request in Google App Script

Question

I am developing a Google App Script to determine the size of a remote resource without downloading it. The code is as follows

function getRemoteFileSize()
{  
  var params =  { "method" : "head" };
  var resp = UrlFetchApp.fetch("https://www.google.com/images/srpr/logo11w.png", params);
  Logger.log("Remote File Size: " + resp.getAllHeaders()["Content-Length"]);
}

However, Google App Script does not seem to support head requests and the code above cannot be executed.

What can be a viable alternative other than issuing a GET request ?
_{I am open to all suggestions including usage of a third-party service which has an API}

Answer 1

You can try to override the method by setting the "headers" advanced parameter:

var params = {"method" : "GET", "headers": {"X-HTTP-Method-Override": "HEAD"}};

I've never used "HEAD", so I can't tell you for sure that this will work, but I have used the method override for "PATCH", and had that work.