database/db.go (view raw)
1package database
2
3import (
4 "path"
5
6 "git.icyphox.sh/paprika/config"
7 "github.com/dgraph-io/badger/v3"
8)
9
10// Use this as a global DB handle.
11var DB database
12
13type database struct {
14 *badger.DB
15}
16
17func Open() (*badger.DB, error) {
18 db, err := badger.Open(
19 badger.DefaultOptions(path.Join(config.C.DbPath, "badger")),
20 )
21 if err != nil {
22 return nil, err
23 }
24 return db, nil
25}
26
27// Wrapper function to simplify setting a key/val
28// in badger.
29func (d *database) Set(key, val []byte) error {
30 err := d.Update(func(txn *badger.Txn) error {
31 err := txn.Set(key, val)
32 return err
33 })
34
35 return err
36}
37
38// Wrapper function to simplify getting a key from badger.
39func (d *database) Get(key []byte) ([]byte, error) {
40 var val []byte
41 err := d.View(func(txn *badger.Txn) error {
42 item, err := txn.Get(key)
43 if err != nil {
44 return err
45 }
46
47 err = item.Value(func(v []byte) error {
48 val, err = item.ValueCopy(nil)
49 return err
50 })
51 return err
52 })
53 if err != nil {
54 return nil, err
55 }
56 return val, nil
57}