Check for normal string and accept it.

integrations/influxunifi/unidev/unidev.go

@@ -47,9 +47,10 @@ func (value *FlexInt) UnmarshalJSON(b []byte) error {
 		*value = FlexInt(i)
 		return nil
 	case string:
-		j, err := strconv.Atoi(i)
+		// If it's a string like the word "auto" just set the integer to 0 and proceed.
+		j, _ := strconv.Atoi(i)
 		*value = FlexInt(j)
-		return err
+		return nil
 	default:
 		return errors.New("Cannot unmarshal to FlexInt")
 	}

integrations/influxunifi/unidev/unidev_test.go

@@ -12,6 +12,7 @@ func TestFlexInt(t *testing.T) {
 	a := assert.New(t)
 	five := []byte(`{"channel": "5"}`)
 	seven := []byte(`{"channel": 7}`)
+	auto := []byte(`{"channel": "auto"}`)
 	type reply struct {
 		Channel FlexInt `json:"channel"`
 	}
@@ -20,4 +21,6 @@ func TestFlexInt(t *testing.T) {
 	a.EqualValues(FlexInt(5), r.Channel)
 	a.Nil(json.Unmarshal(seven, &r))
 	a.EqualValues(FlexInt(7), r.Channel)
+	a.NotNil(json.Unmarshal(auto, &r))
+	a.EqualValues(FlexInt(0), r.Channel)
 }