Get JSON paths to value from JSON - go

Question

I'm trying to write a func to get all paths to values from a yaml file and I don't know know how that possible, here is my code:
func getpath(fileyaml) string {
if _, err := os.Stat(fileyaml); err == nil {
bfile, err := ioutil.ReadFile(fileyaml)
bjson, err := yaml.YAMLToJSON(bfile)
if err != nil {
fmt.Printf("YAMLToJSON err: %v\n", err)
}
json := string(bjson)
println json
paths := ? // don't know
return path
here my yaml file :
sentinel:
number: 3
server:
number: 7
config:
fere_size: 5
lcmea:
eza_ze: all
my function will convert it to a json: {"config":{"fere_size":5},"lcmea":{"eza_hooks":"all"},"sentinel":{"number":3},"server":{"number":7}}
the output that i want :
sentinel.number=3, server.number=3,config.fere_size=5,lcmea.eza_ze=all
how to parse this json in order to get this desired output?
I'm using "github.com/tidwall/gjson" to read the yaml and convert it to json

Answer 1

This is an example of how you could do it: https://play.golang.org/p/7yLq_PDLdXF
It is pretty naive and definitely could be improved, but it may give you an idea about how to parse the yaml file and then print the output in your desired format:
package main
import (
"fmt"
"log"
"strings"
"github.com/go-yaml/yaml"
)
var data = `
sentinel:
number: 3
server:
number: 7
config:
fere_size: 5
lcmea:
eza_ze: all
`
func main() {
m := make(map[string]map[string]interface{})
err := yaml.Unmarshal([]byte(data), &m)
if err != nil {
log.Fatalf("error: %v", err)
}
out := []string{}
for k, v := range m {
for j, i := range v {
out = append(out, fmt.Sprintf("%s.%v=%v", k, j, i))
}
}
fmt.Println(strings.Join(out, ", "))
}
It will return:
$ go run main.go
sentinel.number=3, server.number=7, config.fere_size=5, lcmea.eza_ze=all
It is using https://github.com/go-yaml/yaml, check more examples on the README.md