in server file create a .env file and paste this into it
MONGODB_URI=mongodb+srv://Justin7933:Crnom7Q84bI7pRaV@codingclasscluster.dkn1t.mongodb.net/symphony?retryWrites=true&w=majority
to startup the app, first run command "npm run install" from THE ROOT DIRECTORY ONLY, DO NOT RUN NPM INSTALL WHILE IN CLIENT OR SERVER FOLDERS. Then run "npm run develop" FROM THE ROOT DIRECTORY and both the backend server and React server will spin up.