* Add metadata to the manifest
* Remove useless import
* Fix the openapi documentation
* Use optional fields instead of default values
* Remove testRestApi target
* Return failure when the protobuf cannot get the field
* Set download headers and fix cors headers when an error is returned
* Add tests to verify the download headers
* Try to adjust the content length header
* Fix convertion to string
* Remove the content length header
* Remove testRestApi target
* Removing debug messages