...or FB can create a 'sdk-code-generation' like they did with Thrift, along with typescript generation. Also, your idea is possible with current Typescript 2.

...or FB can create a 'sdk-code-generation' like they did with Thrift, along with typescript generation. Also, your idea is possible with current Typescript 2.3's language-server specs :) But, this is quite separate from 'generic-machine understandable' data - which is what json-ld is all about.