How to handle Error Event?

[smyth64]

Hey there!
How can I catch the error generated by phantom-render-stream?

I got this error sometimes, which causes my express server to crash.

Error: Render failed (1 tries) Request details: ...

Where do I have to make the try { } catch () { } ?

Thanks for this nice work!

[sorribas]

The error is emitted on the rendering string, so you have to add an error handler to it. Something like this.

var phantom = require('phantom-render-stream');
var render = phantom();

var stream = render('http://example.com/my-site');
stream.pipe(fs.createWriteStream('out.png'));
stream.on('error', function(err) {
  // handle error here
});

You can also use pump instead of pipe, which does error handling for you.

Additionally you can pass set the retries option to something higher so that phantom-render-stream tries more than once to do the rendering. Something like this.

var phantom = require('phantom-render-stream');
var render = phantom({retries: 5});