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- package dao
- import (
- "context"
- "fmt"
- "io/ioutil"
- "net/http"
- "time"
- "github.com/pkg/errors"
- )
- // PvData get binary data from pvdata url
- func (d *Dao) PvData(c context.Context, pvURL string) (res []byte, err error) {
- var (
- req *http.Request
- resp *http.Response
- cancel func()
- )
- if req, err = http.NewRequest("GET", pvURL, nil); err != nil {
- err = errors.Wrapf(err, "PvData http.NewRequest(%s)", pvURL)
- return
- }
- c, cancel = context.WithTimeout(c, time.Duration(d.c.Rule.VsTimeout))
- defer cancel()
- req = req.WithContext(c)
- if resp, err = d.vsClient.Do(req); err != nil {
- err = errors.Wrapf(err, "httpClient.Do(%s)", pvURL)
- return
- }
- defer resp.Body.Close()
- if resp.StatusCode >= http.StatusBadRequest {
- err = fmt.Errorf("PvData url(%s) resp.StatusCode(%v)", pvURL, resp.StatusCode)
- return
- }
- res, err = ioutil.ReadAll(resp.Body)
- return
- }
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