/
codec.go
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/
codec.go
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// ************************************************************************
// Copyright (C) 2022 plgd.dev, s.r.o.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ************************************************************************
package cbor
import (
"bytes"
"io"
"github.com/fxamacker/cbor/v2"
"github.com/ugorji/go/codec"
)
// Encode encodes v and returns bytes.
func Encode(v interface{}) ([]byte, error) {
buf := bytes.NewBuffer(make([]byte, 0, 1024))
err := WriteTo(buf, v)
if err != nil {
return nil, err
}
return buf.Bytes(), nil
}
// WriteTo writes v to writer.
func WriteTo(w io.Writer, v interface{}) error {
encOpts := cbor.EncOptions{
Sort: cbor.SortBytewiseLexical,
}
encMode, err := encOpts.EncMode()
if err != nil {
return err
}
return encMode.NewEncoder(w).Encode(v)
}
// Decode decodes bytes and stores the result in v.
func Decode(b []byte, v interface{}) error {
return cbor.Unmarshal(b, v)
}
// ReadFrom reads and stores the result in v.
func ReadFrom(w io.Reader, v interface{}) error {
return cbor.NewDecoder(w).Decode(v)
}
// ToJSON converts CBOR to JSON.
func ToJSON(cbor []byte) (string, error) {
var m interface{}
if err := Decode(cbor, &m); err != nil {
return "", err
}
b := bytes.NewBuffer(make([]byte, 0, 1024))
h := codec.JsonHandle{}
h.BasicHandle.Canonical = true
enc := codec.NewEncoder(b, &h)
if err := enc.Encode(m); err != nil {
return "", err
}
return b.String(), nil
}