Tweets when a new data package is uploaded to the PASTA data repository!
The PASTA Upload Tweeter is a Python 3 application that listens for PASTA data package upload notifications and responds with a "tweet" through the @EDIgotdata twitter account. Tweets include the PASTA package identifier, a link to the EDI Data Portal landing page for the data package, and the title of the data package (truncated if necessary).
The PASTA Upload Tweeter operates a Flask web applicagtion listening for POST requests on the /tweet route and pulls the simple PASTA package identifier from the request message body (no key-value here, just the identifier). If the package identifier is valid, the application queries PASTA for the data package metadata in the Ecological Metadata Language format and parses out the title using the Python lxml etree package. With the package identifier and title in hand, the application constructs the twitter message (see above) and uses the Python python-twitter package as a wrapper for the Twitter REST API to post the new message to the @EDIgotdata feed. The application must be registered at twitter's application interface to obtain necessary authentication tokens for communicating with the Twitter API (interactions follow Twitter's Automation guidelines). The application runs behind Nginx using the Python uwsgi package.
Thanks to Digital Oceans' community tutorials for tips on deploying Nginx with LetsEncrypt on Ubuntu 16.04 and integrating Flask and uwsgi with Nginx.