tile38/internal/endpoint/http.go

66 lines
1.3 KiB
Go

package endpoint
import (
"bytes"
"fmt"
"io"
"io/ioutil"
"net/http"
"time"
)
const (
httpExpiresAfter = time.Second * 30
httpRequestTimeout = time.Second * 5
httpMaxIdleConnections = 20
)
// HTTPConn is an endpoint connection
type HTTPConn struct {
ep Endpoint
client *http.Client
}
func newHTTPConn(ep Endpoint) *HTTPConn {
return &HTTPConn{
ep: ep,
client: &http.Client{
Transport: &http.Transport{
MaxIdleConnsPerHost: httpMaxIdleConnections,
IdleConnTimeout: httpExpiresAfter,
},
Timeout: httpRequestTimeout,
},
}
}
// Expired returns true if the connection has expired
func (conn *HTTPConn) Expired() bool {
return false
}
// Send sends a message
func (conn *HTTPConn) Send(msg string) error {
req, err := http.NewRequest("POST", conn.ep.Original, bytes.NewBufferString(msg))
if err != nil {
return err
}
req.Header.Set("Content-Type", "application/json")
resp, err := conn.client.Do(req)
if err != nil {
return err
}
// close the connection to reuse it
defer resp.Body.Close()
// discard response
if _, err := io.Copy(ioutil.Discard, resp.Body); err != nil {
return err
}
// we only care about the 200 response
if resp.StatusCode != 200 {
return fmt.Errorf("invalid status: %s", resp.Status)
}
return nil
}