Search GMail for messages, then write them to a folder as .txt files. Will start a server on http://localhost:3000/login which should send you to authorize the app to access your email. Once you do that, the folder should populate and "OK" will be returned to the browser. Errors are logged to the server console.
germania/scrape-gmail
Node.js script to log into GMail, search for messages, and download them to a folder as .txt files
JavaScript