libbson_legacy_extended_json - Man Page

libbson can produce a non-portable Legacy Extended JSON format.

WARNING:

MongoDB Extended JSON (v2) describes the preferred Relaxed Extended JSON format and Canonical Extended Formats

libbson's Legacy Extended JSON format matches Relaxed Extended JSON with the following exceptions. Notation is borrowed from MongoDB Extended JSON (v2):

{ "$binary": "<payload>", "$type": "<t>" }

{ "$date" : "<millis>" }

{ "$regex" : "<regexPattern>", "$options" : "<options>" }

{ "$ref" : "<collection namespace>", "$id" : "<ObjectId bytes>" }

"<string>"