msgpack

shamaton/msgpack v3 codec

wrapper/cache codec that encodes values as MessagePack with github.com/shamaton/msgpack/v3. The v2 codec (../v2) stays; both implement cache.Codec[T].

import (
	"github.com/xgodev/boost/wrapper/cache"
	msgpack "github.com/xgodev/boost/wrapper/cache/codec/contrib/shamaton/msgpack/v3"
)

manager := cache.NewManager[Order]("orders", msgpack.New[Order](), drv)

Moving from v2

• Compatible on the wire. v3 reads the entries v2 wrote and v2 reads the entries v3 writes (strings, bytes, structs, slices, times), so a service can switch codecs without flushing its cache, and instances on v2 and v3 can share one cache during a rollout (codec_test.go: TestCodec_ReadsV2, TestCodec_V2Reads, TestCodec_Time_DecodesAsUTC).
• time.Time decodes in UTC. v2 decoded a timestamp into time.Local; v3 decodes it into time.UTC. The instant is the same (Equal holds), only Location() differs, so code that formats the time or compares with == sees a change. msgpack.SetDecodedTimeAsLocal() from github.com/shamaton/msgpack/v3 restores the v2 behaviour process-wide.