/
client.go
100 lines (80 loc) · 1.87 KB
/
client.go
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package emas
import (
"log"
"os"
"time"
"io"
"net/http"
"io/ioutil"
)
type Client struct {
Environment string
AppId string
SecretKey string
Debug bool
Logger *log.Logger
}
func NewClient() Client {
return Client{
Environment: "",
Debug: true,
Logger: log.New(os.Stderr, "", log.LstdFlags),
}
}
var timeout = 30 * time.Second
var httpClient = &http.Client{Timeout: timeout}
func (c *Client) NewRequest(method string, fullPath string, body io.Reader) (*http.Request, error) {
req, err := http.NewRequest(method, fullPath, body)
if err != nil {
if c.Debug {
c.Logger.Println("Request creation failed: ", err)
}
return nil, err
}
t := time.Now()
req.Header.Add("Content-Type", "application/json")
req.Header.Add("Accept", "application/json")
req.Header.Add("App-Id", c.AppId)
req.Header.Add("Timestamp", t.String())
req.Header.Add("Signature", ShaOneEncrypt(Md5Encrypt(c.AppId + t.String() + c.SecretKey)))
return req, nil
}
func (c *Client) ExecuteRequest(req *http.Request) ([]byte, error) {
if c.Debug {
c.Logger.Println("Request ", req.Method, ": ", req.URL.Host + req.URL.Path)
}
start := time.Now()
res, err := httpClient.Do(req)
defer res.Body.Close()
if c.Debug {
c.Logger.Println("Completed in ", time.Since(start))
}
if err != nil {
if c.Debug {
c.Logger.Println("Request failed: ", err)
}
return nil, err
}
resBody, err := ioutil.ReadAll(res.Body)
if err != nil {
if c.Debug {
c.Logger.Println("Cannot read response body: ", err)
}
return nil, err
}
if c.Debug {
c.Logger.Println("API response: ", string(resBody))
}
return resBody, nil
}
func (c *Client) Call(method, path string, body io.Reader) ([]byte, error) {
req, err := c.NewRequest(method, path, body)
if err != nil {
return nil, err
}
resp, err := c.ExecuteRequest(req)
if err != nil {
return nil, err
}
return resp, nil
}