-
Notifications
You must be signed in to change notification settings - Fork 0
/
client.go
77 lines (63 loc) · 1.19 KB
/
client.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
package redis
import (
"bytes"
"context"
"encoding/gob"
"time"
redis "github.com/go-redis/redis/v7"
)
type Client struct {
pool *redis.Client
}
func NewClient(ctx context.Context) *Client {
if pool == nil {
return &Client{}
}
return &Client{pool: pool.WithContext(ctx)}
}
func (c *Client) Get(key string, result interface{}) error {
if c.pool == nil {
return ErrNotFound
}
cached, err := c.pool.Get(key).Bytes()
if err == redis.Nil {
return ErrNotFound
} else if err != nil {
return err
}
buf := bytes.NewBuffer(cached)
enc := gob.NewDecoder(buf)
err = enc.Decode(result)
if err != nil {
return err
}
return nil
}
func (c *Client) Set(key string, value interface{}, expiration time.Duration) error {
if c.pool == nil {
return nil
}
buf := bytes.Buffer{}
enc := gob.NewEncoder(&buf)
err := enc.Encode(value)
if err != nil {
return err
}
err = c.pool.Set(key, buf.Bytes(), expiration).Err()
if err != nil {
return err
}
return nil
}
func (c *Client) Del(keys ...string) error {
if c.pool == nil {
return nil
}
return c.pool.Del(keys...).Err()
}
func (c *Client) FlushDB() error {
if c.pool == nil {
return nil
}
return c.pool.FlushDB().Err()
}