Monday, November 08, 2010 at 12:01 AM.

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system.verbs.apps.twitter.getUserFollows

on getUserFollows (username, adrfollows, maxfollows=nil) {
	<<Changes
		<<8/6/09; 6:48:02 PM by DW
			<<Twitter is redirecting these calls today, so I added ctFollowRedirects:3 to the call.
		<<8/6/09; 9:15:54 AM by DW
			<<Better error message when Twitter returns an empty string. They're having serious problems this morning and the message we were returning was "Can't get the address of 'users' because the table doesn't have an object with that name."
		<<8/4/09; 3:02:23 PM by DW
			<<New optional param, maxfollows. If non-nil, we won't return more than that amount of followers.
		<<6/1/09; 8:54:47 AM by DW
			<<Check that screenname isn't non-empty. 
		<<5/31/09; 6:01:47 PM by DW
			<<Created. Return a table containing info about all the people the indicated user follows.
	local (s = "http://twitter.com/statuses/friends.xml?screen_name=" + username, pagenum=1);
	new (tabletype, adrfollows);
	loop {
		local (url = s + "&page=" + pagenum++);
		local (xmltext = tcp.httpreadurl (url, ctFollowRedirects:3), xstruct, ctadded=0);
		if sizeof (xmltext) == 0 {
			scripterror ("Can't get the followers for \"" + username + "\" because Twitter returned an empty result.")};
		xml.compile (xmltext, @xstruct);
		<<scratchpad.userfollowsxstruct = xstruct
		local (adrusers = xml.getaddress (@xstruct, "users"), adruser);
		for adruser in adrusers {
			if maxfollows != nil { //8/4/09 by DW
				if sizeof (adrfollows^) >= maxfollows {
					return}};
			if nameof (adruser^) endswith "user" {
				local (screenname = xml.getvalue (adruser, "screen_name"));
				if sizeof (screenname) > 0 {
					local (adrtable = @adrfollows^.[screenname]);
					new (tabletype, adrtable);
					adrtable^.userId = xml.getvalue (adruser, "id");
					adrtable^.userName = xml.getvalue (adruser, "name");
					adrtable^.userScreenName = screenname;
					adrtable^.userLocation = xml.getvalue (adruser, "location");
					adrtable^.userDescription = xml.getvalue (adruser, "description");
					adrtable^.userProfileImageUrl = xml.getvalue (adruser, "profile_image_url");
					adrtable^.userUrl = xml.getvalue (adruser, "url");
					adrtable^.userFollowedBy = number (xml.getvalue (adruser, "followers_count")); //5/9/09 by DW
					adrtable^.userFollows = number (xml.getvalue (adruser, "friends_count")); //5/9/09 by DW
					adrtable^.userCtStatuses = number (xml.getvalue (adruser, "statuses_count")); //5/9/09 by DW
					adrtable^.flProtected = xml.getvalue (adruser, "protected"); //12/8/07 by DW
					ctadded++}}};
		if ctadded == 0 {
			return}}};
		<<scratchpad.follows = xstruct
bundle { //test code
	getUserFollows ("px", @scratchpad.userfollows, 15)}

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This listing is for code that runs in the OPML Editor environment. I created these listings because I wanted the search engines to index it, so that when I want to look up something in my codebase I don't have to use the much slower search functionality in my object database. Dave Winer.