/
client.go
73 lines (65 loc) · 1.41 KB
/
client.go
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package main
import (
"log"
"net/http"
"bytes"
"io"
"io/ioutil"
"net/url"
"encoding/json"
)
var httpClient *http.Client
func init() {
httpClient = &http.Client{}
}
func request(b *ApiBody, w http.ResponseWriter, r *http.Request) {
var resp *http.Response
var err error
u, _ := url.Parse(b.Url)
u.Host = config.GetLbAddr() + ":" + u.Port()
newUrl := u.String()
switch b.Method {
case http.MethodGet:
req, _ := http.NewRequest("GET", newUrl, nil)
req.Header = r.Header
resp, err = httpClient.Do(req)
if err != nil {
log.Println(err)
return
}
normalResponse(w, resp)
case http.MethodPost:
req, _ := http.NewRequest("POST", newUrl, bytes.NewBuffer([]byte(b.ReqBody)))
req.Header = r.Header
resp, err = httpClient.Do(req)
if err != nil {
log.Println(err)
return
}
normalResponse(w, resp)
case http.MethodDelete:
req, _ := http.NewRequest("DELETE", newUrl, nil)
req.Header = r.Header
resp, err = httpClient.Do(req)
if err != nil {
log.Println(err)
return
}
normalResponse(w, resp)
default:
w.WriteHeader(http.StatusBadRequest)
io.WriteString(w, "Bad api request")
return
}
}
func normalResponse(w http.ResponseWriter, r *http.Response) {
res, err := ioutil.ReadAll(r.Body)
if err != nil {
re, _ := json.Marshal(ErrorInternalFaults)
w.WriteHeader(500)
io.WriteString(w, string(re))
return
}
w.WriteHeader(r.StatusCode)
io.WriteString(w, string(res))
}