Before you get too excited and run rails new thecoolest --api on your terminal, it might be a good idea to take some time to consider what your needs are. How different is a Rails API-only from a full-stack Rails app? As you can see in the image below, the API-only is a lighter version of a full stack Rails app: The reason why it’s lighter is because Rails API-only won’t render HTML pages, handle user sessions & cookies, nor display any assets.
