Changes and Additions

1. Dependencies:

   • Added express, swagger-jsdoc, and swagger-ui-express for API routing and Swagger UI generation.
   • Added prom-client for Prometheus metrics collection.
   • Added dotenv for environment variable management.
   • Added cors and body-parser for middleware.
   • Added reflect-metadata for future extensibility.

2. Dev Dependencies:

   • Included TypeScript types for Express, Node.js, body-parser, and cors.
   • Added eslint and @typescript-eslint plugins for linting TypeScript files.
   • Added jest and ts-jest for unit testing.

3. Scripts:

   • start: Runs the app in development mode with ts-node-dev.
   • build: Compiles the app to JavaScript and cleans up the dist directory.
   • start:prod: Starts the compiled production app.
   • test: Runs Jest in watch mode.
   • lint: Runs ESLint for code quality checks.
   • prettier and prettier:fix: Runs Prettier to ensure consistent formatting.
   • swagger:generate: Generates Swagger JSON documentation from JSDoc comments in the code.

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How to Use

1. Install Dependencies:

   npm install

2. Start in Development Mode:

   npm run start

3. Build for Production:

   npm run build

4. Run in Production Mode:

   npm run start:prod

5. Generate Swagger Documentation:

   npm run swagger:generate

6. Lint and Format Code:

   npm run lint
   npm run prettier

7. Run Tests:

   npm run test

8. Visit Swagger:

       http://localhost:4400/swagger
   ```# demo-node-api