package main

import (
	"fmt"

	"github.com/dgraph-io/badger/v4"
)

func main() {
	opts := badger.DefaultOptions("./db/hash")
	db, err := badger.Open(opts)
	if err != nil {
		panic(err)
	}
	defer db.Close()

	err = db.View(func(txn *badger.Txn) error {
		it := txn.NewIterator(badger.DefaultIteratorOptions)
		defer it.Close()

		for it.Rewind(); it.Valid(); it.Next() {
			item := it.Item()
			val, err := item.ValueCopy(nil)
			if err != nil {
				return err
			}
			fmt.Println(string(item.Key()) + " " + string(val))
		}

		return nil
	})
	if err != nil {
		panic(err)
	}
}