Merge pull request #1 from vharsh/dnsOrverride

Explictly use Google-DNS as nameserver

Author: Kiran Mova

client.go

@@ -4,7 +4,9 @@ package ga
 
 import (
 	"bytes"
+	"context"
 	"fmt"
+	"net"
 	"net/http"
 	"net/url"
 	"regexp"
@@ -16,9 +18,22 @@ func NewClient(trackingID string) (*Client, error) {
 	if !trackingIDMatcher.MatchString(trackingID) {
 		return nil, fmt.Errorf("Invalid Tracking ID: %s", trackingID)
 	}
+	dialer := &net.Dialer{
+		Resolver: &net.Resolver{
+			PreferGo: true,
+			Dial: func(ctx context.Context, network, address string) (net.Conn, error){
+				dialer := net.Dialer{}
+				return dialer.DialContext(ctx, network, "8.8.8.8:53")
+			},
+		},
+	}
 	return &Client{
 		UseTLS:             true,
-		HttpClient:         http.DefaultClient,
+		HttpClient:         &http.Client{
+			Transport: &http.Transport{
+				DialContext: dialer.DialContext,
+			},
+		},
 		protocolVersion:    "1",
 		protocolVersionSet: true,
 		trackingID:         trackingID,
@@ -49,17 +64,17 @@ func (c *Client) Send(h hitType) error {
 		return err
 	}
 
-	url := ""
+	gaUrl := ""
 	if cpy.UseTLS {
-		url = "https://www.google-analytics.com/collect"
+		gaUrl = "https://www.google-analytics.com/collect"
 	} else {
-		url = "http://ssl.google-analytics.com/collect"
+		gaUrl = "http://ssl.google-analytics.com/collect"
 	}
 
 	str := v.Encode()
 	buf := bytes.NewBufferString(str)
 
-	resp, err := c.HttpClient.Post(url, "application/x-www-form-urlencoded", buf)
+	resp, err := c.HttpClient.Post(gaUrl, "application/x-www-form-urlencoded", buf)
 	if err != nil {
 		return err
 	}