Give Your Cat Twitter Powers

Step 8 Upload the image via FTP

To upload our captured image on, we'll use FTP. This is the most straightforward solution to make the images accessible to others on the web, but it does require having access to a server that can accept FTP uploads and serve those files to web browsers.

The FTP code I use is taken verbatim from http://processing.org/hacks/hacks:ftp so I suggest you take a look at that page.

Alternatives:

• we could also upload the picture using the TwitPic API, but would have to encode the image and generate an HTTP POST request, for which Processing unfortunately doesn't have good library support.
• We could also post the image to Flickr, using one of the available Flickr API wrappers in Java such as flickrj. I've found Flickr authentication to be a drag though.
• Finally, to prevent your password from being sent around in plain text, you may wish to use SFTP instead of FTP. Daniel Shiffman has a nice SFTP library for Processing.