Golang IPLD Libraries
go-ipld-prime library is centered around a Node interface which matches the IPLD Data Model.
go-ipld-prime library comes "batteries included" with several codecs such as
DAG-CBOR and DAG-JSON,
and also allows registering more codec implementations using the multicodec system
(or, even more directly, by customizing the
LinkSystem, an API which allows arbitrary callbacks for hooking).
These libraries are still supported, but minimally, and new features should not be expected in them. It's recommend that new developments use go-ipld-prime instead.
In particular, be aware that features like Selectors are missing from these libraries, and will not be implemented in them. (These features require a foundational commitment to the Data Model which these libraries lack; attempting to introduce that would be the same as doing a total rewrite of the library.)