Haskell representation and serialization of BSON documents (version 1.0) as defined at bsonspec.org
Latest commit ec9c3a6 Sep 12, 2011 Tony Hannan fix showHexLen

README.md

Haskell library for the BSON encoding. Used in MongoDB. BSON documents are JSON-like objects with a standard binary encoding. A BSON Document is serialized to a standard binary encoding defined at http://bsonspec.org. This implements version 1 of that spec.

A BSON Document is an untyped (dynamically type-checked) record. I.e. it is a list of name-value pairs, where a Value is a single sum type with constructors for basic types (Bool, Int, Float, String, and Time), compound types (List, and (embedded) Document), and special types (Binary, Javascript, ObjectId, RegEx, and a few others).