pdf-controller.js

// Factory
function createPdfsController(PdfService) {
  return {
    create: function(req, res, next) {
      const content_id = req.params.content_id;
      const pdf_id = PdfService.generate(content_id);
      res.json({ pdf_id: pdf_id });
    }
  };
}

// Export a function that registers the service provider with the given container.
modules.export = function(bottle) {
  bottle.service(
    'controller.Pdfs',       // the name of the service we're providing
    createPdfsController,    // the factory to create the service instance
    'service.PdfGenerator'   // the dependencies required to create the factory
  );
};