vmihailenco/msgpack

# MessagePack encoding for Golang [](https://travis-ci.org/vmihailenco/msgpack) [](https://pkg.go.dev/github.com/vmihailenco/msgpack/v5) [](https://msgpack.uptrace.dev/) [](https://discord.gg/rWtp5Aj) ## Resources - [Documentation](https://msgpack.uptrace.dev) - [Chat](https://discord.gg/rWtp5Aj) - [Reference](https://pkg.go.dev/github.com/vmihailenco/msgpack/v5) - [Examples](https://pkg.go.dev/github.com/vmihailenco/msgpack/v5#pkg-examples) ## Features - Primitives, arrays, maps, structs, time.Time and interface{}. - Appengine \*datastore.Key and datastore.Cursor. - [CustomEncoder]/[CustomDecoder] interfaces for custom encoding. - [Extensions](https://pkg.go.dev/github.com/vmihailenco/msgpack/v5#example-RegisterExt) to encode type information. - Renaming fields via `msgpack:"my_field_name"` and alias via `msgpack:"alias:another_name"`. - Omitting individual empty fields via `msgpack:",omitempty"` tag or all [empty fields in a struct](https://pkg.go.dev/github.com/vmihailenco/msgpack/v5#example-Marshal-OmitEmpty). - [Map keys sorting](https://pkg.go.dev/github.com/vmihailenco/msgpack/v5#Encoder.SetSortMapKeys). - Encoding/decoding all [structs as arrays](https://pkg.go.dev/github.com/vmihailenco/msgpack/v5#Encoder.UseArrayEncodedStructs) or [individual structs](https://pkg.go.dev/github.com/vmihailenco/msgpack/v5#example-Marshal-AsArray). - [Encoder.SetCustomStructTag] with [Decoder.SetCustomStructTag] can turn msgpack into drop-in replacement for any tag. - Simple but very fast and efficient [queries](https://pkg.go.dev/github.com/vmihailenco/msgpack/v5#example-Decoder.Query). ## Installation msgpack supports 2 last Go versions and requires support for [Go modules](https://github.com/golang/go/wiki/Modules). So make sure to initialize a Go module: go mod init github.com/my/repo And then install msgpack/v5 (note _v5_ in the import; omitting it is a popular mistake): go get github.com/vmihailenco/msgpack/v5 ## Quickstart import "github.com/vmihailenco/msgpack/v5" func ExampleMarshal() { type Item struct { Foo string } b, err := msgpack.Marshal(&Item{Foo: "bar"}) if err != nil { panic(err) } var item Item err = msgpack.Unmarshal(b, &item) if err != nil { panic(err) } fmt.Println(item.Foo) // Output: bar } ## See also - [Golang ORM](https://github.com/uptrace/bun) for PostgreSQL, MySQL, MSSQL, and SQLite - [Golang PostgreSQL](https://bun.uptrace.dev/postgres/) - [Golang HTTP router](https://github.com/uptrace/bunrouter) - [Golang ClickHouse ORM](https://github.com/uptrace/go-clickhouse)

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