Get an entity by its foreign ID, optionally creating it if not found
foreignId within the project. Optionally creates a blank entity if none exists — useful for automatically bootstrapping entities when a user first visits a page or URL in your application.
"true", creates a blank entity with this foreignId if no entity is found. The new entity has no title, content, or user attribution. Defaults to "false".user — the author’s user profilespace — the space the entity belongs totopComment — the highest-voted commentsaved — whether the authenticated user has saved this entityfiles — uploaded file/image attachmentsNot Found — 404
foreignId exists and createIfNotFound is not "true".