Node.js binder for two-way communication with PhantomJS. An IPC library in two modules, used in conjunction with sleepyhollow-phantom, via stdin and stderr. No socket.io or server-page hacks required.
To send and receive messages from Node.js to PhantomJS, require and invoke sleepyhollow-node. This returns an EventEmitter instance, which allows you to implement your own message passing system.
var sleepyhollow = require('sleepyhollow-node');
var drjekyll = sleepyhollow('phantom-code.js');
drjekyll.emit('render', "http://github.com/");
drjekyll.on('rendered', function() {
console.log('a page was rendered');
drjekyll.emit('end');
});
See the usage example for the corresponding PhantomJS code.
The error support in PhantomJS isn't the best. sleepyhollow provides one custom event to listen for errors in your script:
var sleepyhollow = require('sleepyhollow-node');
var drjekyll = sleepyhollow('some-phantom-script.js');
drjekyll.on('error', function(data) {
console.log(data);
});
Anything that comes across stdout will be passed over to the error event handler, so if you console.log from your PhantomJS code, it will be sent to that handler.
To run PhantomJS with advanced options, you can simply pass them when you invoke sleepyhollow.
For example, to tell PhantomJS to ignore ssl errors:
var me = sleepyhollow('--ignore-ssl-errors=true', 'myscript.js');
See the examples folder, these can be run with node.
To run tests. cd to the directory containing node_modules. then run...
$ node node_modules/sleepyhollow-node/test.js