make lmdb and badger backends use a binary encoding instead of nson.

lmdb/save.go

@@ -0,0 +1,38 @@
+package lmdb
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/bmatsuo/lmdb-go/lmdb"
+	"github.com/nbd-wtf/go-nostr"
+	nostr_binary "github.com/nbd-wtf/go-nostr/binary"
+)
+
+func (b *LMDBBackend) SaveEvent(ctx context.Context, evt *nostr.Event) error {
+	// sanity checking
+	if evt.CreatedAt > maxuint32 || evt.Kind > maxuint16 {
+		return fmt.Errorf("event with values out of expected boundaries")
+	}
+
+	return b.lmdbEnv.Update(func(txn *lmdb.Txn) error {
+		bin, err := nostr_binary.Marshal(evt)
+		if err != nil {
+			return err
+		}
+
+		idx := b.Serial()
+		// raw event store
+		if err := txn.Put(b.rawEventStore, idx, bin, 0); err != nil {
+			return err
+		}
+
+		for _, k := range b.getIndexKeysForEvent(evt) {
+			if err := txn.Put(k.dbi, k.key, idx, 0); err != nil {
+				return err
+			}
+		}
+
+		return nil
+	})
+}