A Twitter bot for XML hackers
XProcTwitterBot is a TwitterBot written in the XProc language. The bot includes a number of XProc steps for dealing with Twitter: <twitter:upload-media>, <twitter:tweet>, <twitter:followers>, and <twitter:sign-request>.
As an example, the bot also includes steps which search for old newspaper illustrations from the National Library of New Zealand, and uses the twitter: XProc steps to republish them as tweets, under the acccount @NZPaperBot.
XProcTwitterBot makes a query to the National Library of New Zealand's DigitalNZ API; firstly to search for illustrations published exactly 100 years ago, from which it selects a single result, and retrieves the image itself from that page. After that the bot uploads the image to Twitter, and then creates a tweet containing the headline, the title of the newspaper, a link to the page on Papers Past, and the image itself.
To run this bot, you will need to install the XMLCalabash XProc interpreter, because the Bot makes use of one or two Calabash extensions that aren't available with other XProc engines. I hope to convert it to a fully standard XProc eventually.
You will also need to go to Twitter and sign up to create a user account for your TwitterBot, and also register an App, and grant your App the right to post on behalf of your user. This will yield four credentials (consumer-key, consumer-secret, access-token, and access-token-secret) which you must pass to the twitter-bot.xpl pipeline when you run it. e.g.
java -jar xmlcalabash.jar --with-param consumer-key="XXXXXXX" --with-param consumer-secret="XXXXXXX" --with-param access-token="XXXXXXXX" --with-param access-token-secret="XXXXXXX" twitter-bot.xpl
This software is released into the public domain.