/
block.go
190 lines (155 loc) · 5.37 KB
/
block.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
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
package client
import (
"context"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"github.com/filefilego/filefilego/rpc"
)
// GetBlockByNumber get a block by number.
func (cli *Client) GetBlockByNumber(ctx context.Context, blockNumber uint64) (rpc.JSONBlock, error) {
payload := JSONRPCRequest{
JSONRPC: "2.0",
Method: "block.GetByNumber",
Params: []interface{}{rpc.GetByNumberArgs{
Number: blockNumber,
}},
ID: 1,
}
bodyBuf, err := encodeDataToJSON(payload)
if err != nil {
return rpc.JSONBlock{}, fmt.Errorf("failed to encode body to json: %w", err)
}
req, err := cli.buildRequest(ctx, http.MethodPost, cli.url, bodyBuf, nil)
if err != nil {
return rpc.JSONBlock{}, fmt.Errorf("failed to build request: %w", err)
}
response, err := cli.httpClient.Do(req)
if err != nil {
return rpc.JSONBlock{}, fmt.Errorf("failed to do request: %w", err)
}
defer response.Body.Close()
body, err := io.ReadAll(response.Body)
if err != nil {
return rpc.JSONBlock{}, fmt.Errorf("failed to read response body: %w", err)
}
jsonResponse := JSONRPCResponse{}
if err := json.Unmarshal(body, &jsonResponse); err != nil {
return rpc.JSONBlock{}, fmt.Errorf("failed to unmarshal response body: %w", err)
}
if jsonResponse.Error != "" {
return rpc.JSONBlock{}, errors.New(jsonResponse.Error)
}
if jsonResponse.Result == nil {
return rpc.JSONBlock{}, errors.New("empty result in json response")
}
// the result contains a map
// the best way to convert it to a struct is through the json marshal and unmarshal
jsonBlock := rpc.JSONBlock{}
dbByte, err := json.Marshal(jsonResponse.Result)
if err != nil {
return rpc.JSONBlock{}, errors.New("failed to marshal the result of response")
}
if err := json.Unmarshal(dbByte, &jsonBlock); err != nil {
return rpc.JSONBlock{}, fmt.Errorf("failed to unmarshal the result of response back to a struct: %w", err)
}
return jsonBlock, nil
}
// GetBlockByHash get a block by hash.
func (cli *Client) GetBlockByHash(ctx context.Context, blockHash string) (rpc.JSONBlock, error) {
payload := JSONRPCRequest{
JSONRPC: "2.0",
Method: "block.GetByHash",
Params: []interface{}{rpc.GetByHashArgs{
Hash: blockHash,
}},
ID: 1,
}
bodyBuf, err := encodeDataToJSON(payload)
if err != nil {
return rpc.JSONBlock{}, fmt.Errorf("failed to encode body to json: %w", err)
}
req, err := cli.buildRequest(ctx, http.MethodPost, cli.url, bodyBuf, nil)
if err != nil {
return rpc.JSONBlock{}, fmt.Errorf("failed to build request: %w", err)
}
response, err := cli.httpClient.Do(req)
if err != nil {
return rpc.JSONBlock{}, fmt.Errorf("failed to do request: %w", err)
}
defer response.Body.Close()
body, err := io.ReadAll(response.Body)
if err != nil {
return rpc.JSONBlock{}, fmt.Errorf("failed to read response body: %w", err)
}
jsonResponse := JSONRPCResponse{}
if err := json.Unmarshal(body, &jsonResponse); err != nil {
return rpc.JSONBlock{}, fmt.Errorf("failed to unmarshal response body: %w", err)
}
if jsonResponse.Error != "" {
return rpc.JSONBlock{}, errors.New(jsonResponse.Error)
}
if jsonResponse.Result == nil {
return rpc.JSONBlock{}, errors.New("empty result in json response")
}
// the result contains a map
// the best way to convert it to a struct is through the json marshal and unmarshal
jsonBlock := rpc.JSONBlock{}
dbByte, err := json.Marshal(jsonResponse.Result)
if err != nil {
return rpc.JSONBlock{}, errors.New("failed to marshal the result of response")
}
if err := json.Unmarshal(dbByte, &jsonBlock); err != nil {
return rpc.JSONBlock{}, fmt.Errorf("failed to unmarshal the result of response back to a struct: %w", err)
}
return jsonBlock, nil
}
// GetBlockPool gets the block pool of the node.
func (cli *Client) GetBlockPool(ctx context.Context) (rpc.PoolResponse, error) {
payload := JSONRPCRequest{
JSONRPC: "2.0",
Method: "block.Pool",
Params: []interface{}{},
ID: 1,
}
bodyBuf, err := encodeDataToJSON(payload)
if err != nil {
return rpc.PoolResponse{}, fmt.Errorf("failed to encode body to json: %w", err)
}
req, err := cli.buildRequest(ctx, http.MethodPost, cli.url, bodyBuf, nil)
if err != nil {
return rpc.PoolResponse{}, fmt.Errorf("failed to build request: %w", err)
}
response, err := cli.httpClient.Do(req)
if err != nil {
return rpc.PoolResponse{}, fmt.Errorf("failed to do request: %w", err)
}
defer response.Body.Close()
body, err := io.ReadAll(response.Body)
if err != nil {
return rpc.PoolResponse{}, fmt.Errorf("failed to read response body: %w", err)
}
jsonResponse := JSONRPCResponse{}
if err := json.Unmarshal(body, &jsonResponse); err != nil {
return rpc.PoolResponse{}, fmt.Errorf("failed to unmarshal response body: %w", err)
}
if jsonResponse.Error != "" {
return rpc.PoolResponse{}, errors.New(jsonResponse.Error)
}
if jsonResponse.Result == nil {
return rpc.PoolResponse{}, errors.New("empty result in json response")
}
// the result contains a map
// the best way to convert it to a struct is through the json marshal and unmarshal
jsonBlockPool := rpc.PoolResponse{}
dbByte, err := json.Marshal(jsonResponse.Result)
if err != nil {
return rpc.PoolResponse{}, errors.New("failed to marshal the result of response")
}
if err := json.Unmarshal(dbByte, &jsonBlockPool); err != nil {
return rpc.PoolResponse{}, fmt.Errorf("failed to unmarshal the result of response back to a struct: %w", err)
}
return jsonBlockPool, nil
}