To start the development server locally, run the following command.
npm run dev
It turns out that the service endpoint fails for the image url example which is provided in the course instructions. This is due to an error with the jimp
library.
But you can test the endpoint with this other image.
You can find the beanstalk deployment at this URL
http://fbi-image-processing-dev.us-east-1.elasticbeanstalk.com/
And you can try the endpoint with the same image.