add parsing multiple time formats

kontor-gin/internal/helpers/time.go

@@ -2,6 +2,7 @@ package helpers
 
 import (
 	"encoding/json"
+	"fmt"
 	"time"
 )
 
@@ -36,13 +37,16 @@ type KontorTime struct {
 	time.Time
 }
 
-const layout = "2006-01-02 15:04:05.000000"
+var layouts = []string{
+	"2006-01-02 15:04:05.000000",
+	"2006-01-02T15:04:05.000000Z",
+}
 
 func (kt KontorTime) MarshalJSON() ([]byte, error) {
 	if kt.IsZero() {
 		return []byte("null"), nil
 	}
-	return json.Marshal(kt.Format(layout))
+	return json.Marshal(kt.Format(layouts[0]))
 }
 
 func (kt *KontorTime) UnmarshalJSON(b []byte) error {
@@ -53,10 +57,12 @@ func (kt *KontorTime) UnmarshalJSON(b []byte) error {
 	if s == "" {
 		return nil
 	}
-	t, err := time.Parse(layout, s)
-	if err != nil {
-		return err
+	for _, layout := range layouts {
+		t, err := time.Parse(layout, s)
+		if err == nil {
+			kt.Time = t
+			return nil
+		}
 	}
-	kt.Time = t
-	return nil
+	return fmt.Errorf("failed to parse time from %s", s)
 }