CBOR encoder for Go

---

Decoder/encoder from Go data to CBOR binary string. This code has been developed and maintained by Ven at March 2014.

CBOR is an object representation format defined by the IETF. The specification has recently been approved as an IETF Standards-Track specification and has been published as RFC 7049.

Usage

package main

import (
    "fmt"
    "cbor"
    "bytes"
)
//custom struct
type Vector struct {
    X, Y, Z int
    Range []Range
    Label string
}

type Range struct {
    Length int
    Align float32
}

func main() {
    v := &Vector {
        X: 10,
        Y: 15,
        Z: 100,
        Range: []Range{
            Range {1,10},
            Range {223432423,30},
            Range {3,41.5},
            Range {174,55555.2},
        },
        Label: "HoHoHo",
    }

    //create encoder and marshal
    var buffTest bytes.Buffer
    encoder := cbor.NewEncoder(&buffTest)
    ok, error := encoder.Marshal(v)
    //check binary string
    if !ok {
        fmt.Errorf("Error decoding %s", error)
    } else {
        fmt.Printf("Variable Hex = % x\n", buffTest.Bytes())
        fmt.Printf("Variable = %v\n", buffTest.Bytes())
    }
    fmt.Printf("-----------------\n")

    //unmarshal binary string to new struct
    var vd Vector
    ok, err := encoder.Unmarshal(buffTest.Bytes(), &vd)

    if !ok {
        fmt.Printf("Error Unmarshal %s", err)
        return
    }
    //output
    fmt.Printf("%v", vd)
}

Compatibility

Checked with PHP extension in encode and decode

Known issues

• Not support tags. 6 major type (in future)
• Not support 16 floats encoding
• Not decode nil (null) vars
• Encode does't support indefinite-length values.