http client singleton instance

httpclientmdl/httpclientmdl.go

@@ -4,23 +4,28 @@ import (
 	"bytes"
 	"io/ioutil"
 	"net/http"
+	"sync"
 	"time"
 
 	"corelab.mkcl.org/MKCLOS/coredevelopmentplatform/corepkgv2/constantmdl"
 	"corelab.mkcl.org/MKCLOS/coredevelopmentplatform/corepkgv2/errormdl"
 )
 
+var httpClient *http.Client
+var once sync.Once
+
 // GetHTTPClient This method will return the httpClient object with preconfigured settings
 func GetHTTPClient() *http.Client {
-
-	transport := &http.Transport{
-		MaxIdleConns:        constantmdl.MAXIDLECONNS,
-		MaxIdleConnsPerHost: constantmdl.MAXIDLECONNSPERHOST,
-		IdleConnTimeout:     constantmdl.IDLECONNTIMEOUT,
-	}
-	httpClient := &http.Client{
-		Transport: transport,
-	}
+	once.Do(func() {
+		transport := &http.Transport{
+			MaxIdleConns:        constantmdl.MAXIDLECONNS,
+			MaxIdleConnsPerHost: constantmdl.MAXIDLECONNSPERHOST,
+			IdleConnTimeout:     constantmdl.IDLECONNTIMEOUT,
+		}
+		httpClient = &http.Client{
+			Transport: transport,
+		}
+	})
 	return httpClient
 }