Example Postgres Todo App Client Create React Typescript client npx create-react-app client --template typescript Server Create folder mkdir server Install dependencies cd server npm init -y npm i typescript @types/node @types/express cors dotenv pg sequelize typeorm Add server start script to package.json file "scripts": { "start": "tsc && node dist/app.js" }, Create TSConfig file (tsconfig.json) { "compilerOptions": { "target": "es6", "module": "commonjs", "outDir": "./dist", "rootDir": "./src", "strict": true, "esModuleInterop": true } } Add .env file within server directory PG_URL={secret given in Slack} Create directories and add code create src/ directory with app.ts, models/Todo.ts, routes/Todo.ts