punkydog / goleveldb Goto Github PK

go get github.com/syndtr/goleveldb/leveldb

db, err := leveldb.OpenFile("path/to/db", &opt.Options{Flag: opt.OFCreateIfMissing})
...

ro := &opt.ReadOptions{}
wo := &opt.WriteOptions{}
data, err := db.Get([]byte("key"), ro)
...
err = db.Put([]byte("key"), []byte("value"), wo)
...
err = db.Delete([]byte("key"), wo)
...

iter := db.NewIterator(ro)
for iter.Next() {
	key := iter.Key()
	value := iter.Value()
	...
}
err = iter.Error()
...

batch := new(leveldb.Batch)
batch.Put([]byte("foo"), []byte("value"))
batch.Put([]byte("bar"), []byte("another value"))
batch.Delete([]byte("baz"))
err = db.Write(batch, wo)
...

o := &opt.Options{
	Flag:   opt.OFCreateIfMissing,
	Filter: filter.NewBloomFilter(10),
}
db, err := leveldb.Open(stor, o)
...