I’ve just published two modules that should help you do this: socks5-http-client and socks5-https-client.
Just use those instead of the default http module. The API is the same. For example:
require('socks5-http-client').request(options, function(res) {
console.log('STATUS: ' + res.statusCode);
console.log('HEADERS: ' + JSON.stringify(res.headers));
res.setEncoding('utf8');
res.on('data', function (chunk) {
console.log('BODY: ' + chunk);
});
});