simple common helper to parse & return path (for hmac etc) given url

common/common.go

@@ -11,6 +11,7 @@ import (
 	"encoding/hex"
 	"encoding/json"
 	"errors"
+	"fmt"
 	"hash"
 	"io"
 	"io/ioutil"
@@ -338,3 +339,15 @@ func WriteFile(file string, data []byte) error {
 	}
 	return nil
 }
+
+// GetURIPath returns the path of a URL given a URL
+func GetURIPath(uri string) string {
+	urip, err := url.Parse(uri)
+	if err != nil {
+		return ""
+	}
+	if urip.RawQuery != "" {
+		return fmt.Sprintf("%s?%s", urip.Path, urip.RawQuery)
+	}
+	return urip.Path
+}

common/common_test.go

@@ -270,3 +270,13 @@ func TestUnixTimestampStrToTime(t *testing.T) {
 		t.Error(fmt.Sprintf("Test failed. Expected '%s'. Actual '%s'.", expectedOutput, actualResult))
 	}
 }
+
+func TestURIPath(t *testing.T) {
+	testURI := "https://api.gdax.com/accounts"
+	expectedOutput := "/accounts"
+	actualOutput := GetURIPath(testURI)
+	if actualOutput != expectedOutput {
+		t.Error(fmt.Sprintf("Test failed. Expected '%s'. Actual '%s'.",
+			expectedOutput, actualOutput))
+	}
+}