wechaty/go-wechaty

package filebox

import (
    "encoding/base64"
    "io"
    "io/ioutil"
    "os"
)

var _ fileImplInterface = &fileBoxFile{}

type fileBoxFile struct {
    path string
}

func newFileBoxFile(path string) *fileBoxFile {
    return &fileBoxFile{path: path}
}

func (fb *fileBoxFile) toJSONMap() (map[string]interface{}, error) {
    return nil, nil
}

func (fb *fileBoxFile) toBytes() ([]byte, error) { //nolint:unused
    file, err := ioutil.ReadFile(fb.path)
    if err != nil {
        return nil, err
    }
    return file, nil
}

func (fb *fileBoxFile) toBase64() (string, error) { //nolint:unused
    file, err := fb.toBytes()
    if err != nil {
        return "", err
    }
    return base64.StdEncoding.EncodeToString(file), nil
}

func (fb *fileBoxFile) toReader() (io.Reader, error) {
    return os.Open(fb.path)
}