Update .env file in the project directory. It should contain the environment variable with the Client ID obtained during the registeration process of the i3s explorer application on the ArcGIS portal.

See more information https://developers.arcgis.com/documentation/mapping-apis-and-services/security/tutorials/register-your-application/

In the project directory, you can run:

Will setup application and prepare it to start.

Runs the app in the development mode.
Open http://localhost:3000 to view it in the browser.

The page will reload if you make edits.
You will also see any lint errors in the console.

Launches the test runner in the interactive watch mode.
See the section about running tests for more information.

Builds the app for production to the build folder.
It correctly bundles React in production mode and optimizes the build for the best performance.

The build is minified and the filenames include the hashes.
Your app is ready to be deployed!

See the section about deployment for more information.

Runs the app in the development mode with local deck.gl file structure. Open http://localhost:3000 to view it in the browser.

Important: deck.gl folder should be on the same level with current project directory.

Runs the app in the development mode with local loaders.gl file structure. Open http://localhost:3000 to view it in the browser.

Important: loaders.gl folder should be on the same level with current project directory.