Express.js Get HTTP POST json params https://stackabuse.com/get-http-post-body-in-express-js/ https://stackoverflow.com/questions/5710358/how-to-access-post-form-fields https://codeforgeek.com/handle-get-post-request-express-4/
http://localhost:3000/api/get?q={%22username%22:%22xgqfrms%22}