-
Notifications
You must be signed in to change notification settings - Fork 1
/
http_request.go
157 lines (133 loc) · 3.68 KB
/
http_request.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
package goC8
import (
"fmt"
jsoniter "github.com/json-iterator/go"
"github.com/marvin-hansen/goC8/types"
"github.com/marvin-hansen/goC8/utils"
"github.com/valyala/fasthttp"
"net/url"
"time"
)
// used for JSON unmarshaling
var json = jsoniter.ConfigCompatibleWithStandardLibrary
func (c *Client) requestJsonResponse(req types.Requester, results types.JsonResponder) error {
res, reqErr := c.do(req)
if reqErr != nil {
//println("Request error")
return reqErr
}
// println(string(res.Body()))
results.SetJsonMessage(res.Body())
decErr := decode(res.Body(), results)
if decErr != nil {
// println("Decode error")
return decErr
}
return nil
}
func (c *Client) Request(req types.Requester, results types.Responder) error {
res, reqErr := c.do(req)
if reqErr != nil {
utils.DbgPrint("Request error", debug)
utils.DbgPrint(reqErr.Error(), debug)
return reqErr
}
utils.DbgPrint(string(res.Body()), debug)
decErr := decode(res.Body(), results)
if decErr != nil {
// println("Decode error")
return decErr
}
return nil
}
// do build & executes the actual Request from the rquester
// requester - implementation
// targetStatusCode the expected http status code i.e. 200
func (c *Client) do(r types.Requester) (*fasthttp.Response, *APIError) {
req := c.newRequest(r)
utils.DbgPrint("URI:"+req.URI().String(), debug)
utils.DbgPrint("Payload: "+string(r.Payload()), debug)
// fasthttp for http2.0
res := fasthttp.AcquireResponse()
err := c.HTTPC.DoTimeout(req, res, c.HTTPTimeout)
if err != nil {
utils.DbgPrint("http req error", debug)
apiErr := getApiError(res)
return nil, apiErr
}
if !checkStatusCode(res.StatusCode(), r.ResponseCode()) {
utils.DbgPrint("Status: Not ok", debug)
var resp = new(Response)
if jsonErr := json.Unmarshal(res.Body(), resp); jsonErr != nil {
apiErr := getApiError(res)
return nil, apiErr
}
if !resp.Success {
utils.DbgPrint("Response not success", debug)
apiErr := getApiError(res)
return nil, apiErr
}
}
return res, nil
}
// checkStatusCode determines if an OK response came through.
func checkStatusCode(responseStatusCode, expectedStatusCode int) bool {
switch responseStatusCode {
case 200:
return true
case 201:
return true
case 202:
return true
case expectedStatusCode:
return true
default:
return false
}
}
func getApiError(res *fasthttp.Response) *APIError {
apiErr := &APIError{}
_ = decode(res.Body(), apiErr)
return apiErr
}
func getUri(endpoint string, r types.Requester) *url.URL {
var u = new(url.URL)
if r.HasQueryParameter() {
utils.DbgPrint("Has Parameters: ", debug)
utils.DbgPrint("Parameters: "+r.GetQueryParameter(), debug)
u, _ = url.ParseRequestURI(endpoint + r.GetQueryParameter())
} else {
u, _ = url.ParseRequestURI(endpoint)
}
u.Path = r.Path()
return u
}
func (c *Client) newRequest(r types.Requester) *fasthttp.Request {
u := getUri(c.Endpoint, r)
req := fasthttp.AcquireRequest()
req.Header.SetMethod(r.Method())
req.SetRequestURI(u.String())
body := r.Payload()
req.SetBody(body)
nonce := fmt.Sprintf("%d", int64(time.Now().UTC().UnixNano()/int64(time.Millisecond)))
payload := nonce + r.Method() + u.Path
if u.RawQuery != "" {
u.RawQuery = r.Query()
payload += "?" + u.RawQuery
}
req.Header.Set("Content-Type", "application/json")
req.Header.Set("Accept", "application/json")
req.Header.Set("Authorization", "apikey "+c.getApiKey())
return req
}
func decode(inputJson []byte, outputObject interface{}) error {
if len(inputJson) > 2 { // check for empty "{}" JSON first
err := json.Unmarshal(inputJson, outputObject)
if err != nil {
return fmt.Errorf("JSON decode error")
} else {
return nil
}
}
return nil // return nil in case of empty json
}