60 lines
1.1 KiB
Go
60 lines
1.1 KiB
Go
package badger
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import (
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"github.com/dgraph-io/badger/v4"
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"github.com/nbd-wtf/go-nostr/sdk/kvstore"
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)
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var _ kvstore.KVStore = (*Store)(nil)
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type Store struct {
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db *badger.DB
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}
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func NewStore(path string) (*Store, error) {
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opts := badger.DefaultOptions(path)
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db, err := badger.Open(opts)
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if err != nil {
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return nil, err
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}
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return &Store{db: db}, nil
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}
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func (s *Store) Get(key []byte) ([]byte, error) {
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var valCopy []byte
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err := s.db.View(func(txn *badger.Txn) error {
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item, err := txn.Get(key)
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if err == badger.ErrKeyNotFound {
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return nil
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}
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if err != nil {
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return err
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}
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return item.Value(func(val []byte) error {
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valCopy = make([]byte, len(val))
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copy(valCopy, val)
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return nil
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})
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})
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if err != nil {
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return nil, err
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}
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return valCopy, nil
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}
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func (s *Store) Set(key []byte, value []byte) error {
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return s.db.Update(func(txn *badger.Txn) error {
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return txn.Set(key, value)
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})
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}
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func (s *Store) Delete(key []byte) error {
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return s.db.Update(func(txn *badger.Txn) error {
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return txn.Delete(key)
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})
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}
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func (s *Store) Close() error {
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return s.db.Close()
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}
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