Fix empty string int marshalling in go 1.14

unifi/json.go

@@ -0,0 +1,33 @@
+package unifi
+
+import (
+	"strconv"
+	"strings"
+)
+
+// emptyStringInt was created due to the behavior change in
+// Go 1.14 with json.Number's handling of empty string.
+type emptyStringInt int
+
+func (e *emptyStringInt) UnmarshalJSON(b []byte) error {
+	if len(b) == 0 {
+		return nil
+	}
+	if string(b) == `""` {
+		return nil
+	}
+	var err error
+	s := string(b)
+	if strings.HasPrefix(s, `"`) && strings.HasSuffix(s, `"`) {
+		s, err = strconv.Unquote(s)
+		if err != nil {
+			return err
+		}
+	}
+	i, err := strconv.Atoi(s)
+	if err != nil {
+		return err
+	}
+	*e = emptyStringInt(i)
+	return nil
+}