editDesign

(async () => {
  const api = await Canva.Partnership.initialize({
    apiKey: "<partner_api_key>",
    autoAuthToken: "<auto_auth_token>",
    container: document.getElementById("container"),
  });

  // Keep track of a design's ID
  let designId;

  const onProductSelect = (opts) => {
    api.createDesign({
      ...opts,
      onDesignOpen: (opts) => {
        designId = opts.designId;
      },
    });
  };

  // The user creates a new design
  api.showCatalog({
    onProductSelect,
  });

  // If the user navigates away from the design,
  // you can open it again at a later time.
  api.editDesign({ designId });
})();