forked from YuraFjrosr/xfsgo
-
Notifications
You must be signed in to change notification settings - Fork 0
/
rpcclient.go
86 lines (78 loc) · 2.14 KB
/
rpcclient.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
78
79
80
81
82
83
84
85
86
// Copyright 2018 The xfsgo Authors
// This file is part of the xfsgo library.
//
// The xfsgo library is free software: you can redistribute it and/or modify
// it under the terms of the MIT Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The xfsgo library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// MIT Lesser General Public License for more details.
//
// You should have received a copy of the MIT Lesser General Public License
// along with the xfsgo library. If not, see <https://mit-license.org/>.
package xfsgo
import (
"encoding/json"
"fmt"
"github.com/go-resty/resty/v2"
)
type Client struct {
hostUrl string
}
type jsonRPCReq struct {
JsonRPC string `json:"jsonrpc"`
ID int `json:"id"`
Method string `json:"method"`
Params interface{} `json:"params"`
}
type jsonRPCResp struct {
JSONRPC string `json:"jsonrpc"`
Result interface{} `json:"result"`
Error *RPCError `json:"error"`
ID int `json:"id"`
}
func NewClient(url string) *Client {
return &Client{
hostUrl: url,
}
}
// CallMethod executes a JSON-RPC call with the given psrameters,which is important to the rpc server.
func (cli *Client) CallMethod(id int, methodname string, params interface{}, out interface{}) error {
client := resty.New()
req := &jsonRPCReq{
JsonRPC: "2.0",
ID: id,
Method: methodname,
Params: params,
}
// The result must be a pointer so that response json can unmarshal into it.
var resp *jsonRPCResp = nil
r, err := client.R().
SetHeader("Content-Type", "application/json").
SetBody(req).
SetResult(&resp). // or SetResult(AuthSuccess{}).
Post(cli.hostUrl)
if err != nil {
return err
}
if resp == nil {
return fmt.Errorf("resp null")
}
e := resp.Error
if e != nil {
return e
}
js, err := json.Marshal(resp.Result)
if err != nil {
return err
}
err = json.Unmarshal(js, out)
if err != nil {
return err
}
_ = r
return nil
}