package main import ( "path" "os/user" "github.com/syndtr/goleveldb/leveldb" "fmt" ) type LDBDatabase struct { db *leveldb.DB trie *Trie } func NewLDBDatabase() (*LDBDatabase, error) { // This will eventually have to be something like a resource folder. // it works on my system for now. Probably won't work on Windows usr, _ := user.Current() dbPath := path.Join(usr.HomeDir, ".ethereum", "database") // Open the db db, err := leveldb.OpenFile(dbPath, nil) if err != nil { return nil, err } database := &LDBDatabase{db: db} // Bootstrap database. Sets a few defaults; such as the last block database.Bootstrap() return database, nil } func (db *LDBDatabase) Bootstrap() error { db.trie = NewTrie(db) return nil } func (db *LDBDatabase) Put(key []byte, value []byte) { err := db.db.Put(key, value, nil) if err != nil { fmt.Println("Error put", err) } } func (db *LDBDatabase) Get(key []byte) ([]byte, error) { return nil, nil } func (db *LDBDatabase) Close() { // Close the leveldb database db.db.Close() }