pretty print json yaml

ppj.go

package main

import (
	"bytes"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"os"

	flatten "github.com/jeremywohl/flatten"
)

func check(e error) {
	if e != nil {
		panic(e)
	}
}

func indent(data []byte) *bytes.Buffer {
	buf := new(bytes.Buffer)
	json.Indent(buf, data, "", "    ")
	return buf
}

func flattenBytes(data []byte) (string, error) {

	flattened, err := flatten.FlattenString(string(data), "", flatten.DotStyle)
	return flattened, err
}

func main() {
	data, err := ioutil.ReadAll(os.Stdin)
	check(err)
	fmt.Println(indent(data))

	// fStr, e := flattenBytes(data)
	// check(e)
	// fmt.Println(fStr)

}

Usage

cat json_file | ppj 

echo '{"page": 1, "fruits": ["apple", "peach"]}' | ppj

Please note we need to single quote the json string