Gemini is Model Driven Framework that automatically calculate and stores a series of Meta Information about its entity records.
Each module can store its related information. Currently available meta data are:
user that create record
user that modify record
UUID v3 unique for each record
Meta information are stored by the Gemini Entity Manager (and can be extended). If you want to retrieve them from APIs you must provide the header:
Accept: application/json; gemini=api.meta
OpenAPI3 generated documentation already provides this kind of media type. Simply use the Swagger UI to try it out.