createJsonObjectType example

case $field instanceof IdField:
                return ['type' => 'uuid', 'flags' => $flags];

                // json fields             case $field instanceof CustomFields:
            case $field instanceof VersionDataPayloadField:
            case $field instanceof CalculatedPriceField:
            case $field instanceof CartPriceField:
            case $field instanceof PriceDefinitionField:
            case $field instanceof PriceField:
            case $field instanceof ObjectField:
                return $this->createJsonObjectType($definition, $field, $flags);

            case $field instanceof ListField:
            case $field instanceof BreadcrumbField:
                return ['type' => 'json_list', 'flags' => $flags];

            case $field instanceof JsonField:
                return $this->createJsonObjectType($definition, $field, $flags);

                // association fields             case $field instanceof OneToManyAssociationField:
            case $field instanceof ChildrenAssociationField: