package.json

"scripts": { 
  "mockAPI": "npx json-server db.json --port 3050 --watch", 
  "start": "concurrently \"npm run mockAPI\" \"react-scripts start\"", 
  "build": "react-scripts build", 
  "test": "react-scripts test", 
  "eject": "react-scripts eject", 
  "e2e-test": "./node_modules/.bin/cypress run", 
  "cypress:open": "./node_modules/.bin/cypress open" 
}