feat: add error type

gotsrpc.go

@@ -114,6 +114,7 @@ func Reply(response []interface{}, stats *CallStats, r *http.Request, w http.Res
 			if v, ok := errResp.(error); ok && v != nil {
 				if !reflect.ValueOf(v).IsNil() {
 					stats.ErrorCode = 1
+					stats.ErrorType = fmt.Sprintf("%T", v)
 					stats.ErrorMessage = v.Error()
 					if v, ok := v.(interface {
 						ErrorCode() int

stats.go

@@ -12,5 +12,6 @@ type CallStats struct {
 	RequestSize   int
 	ResponseSize  int
 	ErrorCode     int
+	ErrorType     string
 	ErrorMessage  string
 }