Another good example is CKAN, the most widely used open data portal platform. Their docs are pretty good on how to write plugins -- gives you an idea of how the

Another good example is CKAN, the most widely used open data portal platform. Their docs are pretty good on how to write plugins -- gives you an idea of how the architecture works. https://docs.ckan.org/en/2.9/extensions/index.html https://docs.ckan.org/en/2.9/extensions/index.html