Essential Go / hex, base64 encoding

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package main import ( "bytes" "encoding/base64" "fmt" "io/ioutil" "log" ) func main() { d := []byte{0x01, 0xff, 0x3a, 0xcd} writer := &bytes.Buffer{} base64Writer := base64.NewEncoder(base64.StdEncoding, writer) _, err := base64Writer.Write(d) if err != nil { log.Fatalf("base64Writer.Write() failed with '%s'\n", err) } err = base64Writer.Close() if err != nil { log.Fatalf("base64Writer.Close() failed with '%s'\n", err) } encoded := writer.Bytes() fmt.Printf("Base64: %s\n", string(encoded)) reader := bytes.NewBuffer(encoded) base64Reader := base64.NewDecoder(base64.StdEncoding, reader) decoded, err := ioutil.ReadAll(base64Reader) if err != nil { fmt.Printf("ioutil.ReadAll() failed with '%s'\n", err) } if !bytes.Equal(d, decoded) { log.Fatalf("decoded version is different than original") } }
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