This is an implementation of the LevelDB key/value database in the Go programming language.
go get github.com/syndtr/goleveldb/leveldb
Create or open a database:
mydesc, err := desc.OpenFile("path/to/db")
...
mydb, err := db.Open(mydesc, &opt.Options{Flag: opt.OFCreateIfMissing})
...
Read or modify the database content:
ro := &opt.ReadOptions{}
wo := &opt.WriteOptions{}
data, err := mydb.Get([]byte("key"), ro)
...
err = mydb.Put([]byte("key"), []byte("value"), wo)
...
err = mydb.Delete([]byte("key"), wo)
...
Iterate over database content:
myiter := mydb.NewIterator(ro)
for myiter.Next() {
key := myiter.Key()
value := myiter.Value()
...
}
err = myiter.Error()
...
Batch writes:
batch := new(db.Batch)
batch.Put([]byte("foo"), []byte("value"))
batch.Put([]byte("bar"), []byte("another value"))
batch.Delete([]byte("baz"))
err = mydb.Write(batch, wo)
...
Use bloom filter:
o := &opt.Options{
Flag: opt.OFCreateIfMissing,
Filter: filter.NewBloomFilter(10),
}
mydb, err := db.Open(mydesc, o)
...
You can read package documentation here.