forked from prabal-banerjee/go-substrate-rpc-client
-
Notifications
You must be signed in to change notification settings - Fork 4
/
storage_change_set.go
72 lines (66 loc) · 1.84 KB
/
storage_change_set.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
// Go Substrate RPC Client (GSRPC) provides APIs and types around Polkadot and any Substrate-based chain RPC calls
//
// Copyright 2019 Centrifuge GmbH
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package types
import (
"encoding/json"
"fmt"
)
// StorageChangeSet contains changes from storage subscriptions
type StorageChangeSet struct {
Block Hash `json:"block"`
Changes []KeyValueOption `json:"changes"`
}
type KeyValueOption struct {
StorageKey StorageKey
HasStorageData bool
StorageData StorageDataRaw
}
func (r *KeyValueOption) UnmarshalJSON(b []byte) error {
var tmp []string
if err := json.Unmarshal(b, &tmp); err != nil {
return err
}
switch len(tmp) {
case 0:
return fmt.Errorf("expected at least one entry for KeyValueOption")
case 2:
r.HasStorageData = true
data, err := HexDecodeString(tmp[1])
if err != nil {
return err
}
r.StorageData = data
fallthrough
case 1:
key, err := HexDecodeString(tmp[0])
if err != nil {
return err
}
r.StorageKey = key
default:
return fmt.Errorf("expected 1 or 2 entries for KeyValueOption, got %v", len(tmp))
}
return nil
}
func (r KeyValueOption) MarshalJSON() ([]byte, error) {
var tmp []string
if r.HasStorageData {
tmp = []string{r.StorageKey.Hex(), r.StorageData.Hex()}
} else {
tmp = []string{r.StorageKey.Hex()}
}
return json.Marshal(tmp)
}