Using Go templating engine with JSON

main.go

package main

import (
	"encoding/json"
	"os"
	"text/template"
)

var data = map[string]interface{}{
	"blih": true,
	"blah": map[string]interface{}{
		"bluh": "false",
	},
	"bloh": []int{1,2,3,4,5},
}

var jsonFunc = template.FuncMap{
	"json": func(d interface{}) string {
		payload, err := json.Marshal(d)
		if err != nil {
			return ""
		}

		return string(payload[:])
	},
	"json_indent": func(d interface{}) (string) {
		payload, err := json.MarshalIndent(d, "", "  ")
		if err != nil {
			return ""
		}

		return string(payload[:])
	},
	"newline": func() (string) {
		return "\n"
	},

}

func main() {
	tmpl, err := template.New("test").Funcs(jsonFunc).Parse("{{json . | js}}")
	if err != nil {
		panic(err)
	}
	err = tmpl.Execute(os.Stdout, data)
	if err != nil {
		panic(err)
	}
}