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dstancu [at] nyu [dot] edu
skemata, a JSON-LD DSL

Placing schema.org dichotomies in your page allows search engines to crawl and recognize data that you are presenting. For example, this credit card review on our site can now be understood by Google, so our search engine listings display as…

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This is a quick little Hash-builder DSL that I made for creating schema.org types. Our code had far too many inline’d hashes that were cluttered with null-checks and conditional waterfall spaghetti; if skemata doesn’t find a value it will just display null for that key.

You can find the library here


Let’s make a schema.org object for a book. It doesn’t have to be complete.

Obvious note that you would probably use some kind of repository record not in blog-post land.

Not done yet

I decided to roll this into a library because other JSON-LD related libraries in Ruby lack one thing: ability to be explicit if desired. I love Ruby, but I hate that a lot of software packages try to mimic Rails’ “magic” for everything. That being said, I want to build some other features too:

  • Validations (this is a tough one, because there are so many easy traps to fall into)
  • Entity style mapping for types

I don’t know where I’m going with this, really, but maybe it’ll be cool. Or it can just remain an ordinary Hash builder. I’m OK with that too! :)