Building string from recursive calls

Getting Help
1

Hi,

I wrote a piece of code but got stuck in appending resulting strings in a string slice. How do I complete this code?

Thanks

Trying to achieve this:

ServiceName
Addresses
Logger/Level
HTTP/Server/Host
HTTP/Server/Port
HTTP/Server/Request/Timeout
HTTP/Server/Request/Size

Incomplete code:

package main

import (
	"fmt"
	"reflect"
)

type Config struct {
	ServiceName string
	Addresses   []string
	Logger      struct {
		Level string
	}
	HTTP struct {
		Server struct {
			Host    string
			Port    int
			Request struct {
				Timeout string
				Size    int
			}
		}
	}
}

func main() {
	walk(Config{}, 0)
}

func walk(input any, level int) {
	source := reflect.ValueOf(input)

	for i := 0; i < source.NumField(); i++ {
		field := source.Field(i)

		if !field.CanInterface() {
			continue
		}

		fmt.Println(source.Type().Field(i).Name)

		if field.Kind() == reflect.Struct {
			walk(field.Interface(), level+4)
		}
	}
}