# Technology Stack Document
Generated: Tuesday, September 16, 2025

## Frontend Technologies

* **Framework:** **Angular**. The boilerplate is built on the latest stable version of the Angular framework, chosen for its robustness, component-based architecture, and suitability for large-scale, enterprise applications.
* **Language:** **TypeScript**. As a superset of JavaScript, TypeScript is used for its strong typing, which improves code quality, maintainability, and developer productivity.
* **Styling:** **SCSS**. SCSS is used for its advanced features over standard CSS, such as variables, nesting, and mixins, allowing for more organized and maintainable stylesheets.
* **UI Framework:** **VMware Clarity Design System**. This comprehensive design system provides a set of accessible, high-quality UI components and a consistent visual language, which accelerates UI development.
* **Core Libraries:**
    * **RxJS:** Used extensively throughout Angular for reactive programming and managing asynchronous operations.
    * **Zone.js:** A signaling mechanism that enables Angular's automatic change detection.

## Backend Technologies

* **Backend Agnostic:** This is a frontend-only boilerplate and is not tied to any specific backend technology. It is designed to communicate with any backend that exposes a RESTful or GraphQL API.

## Database Technologies

* **Not Applicable:** As a frontend project, the boilerplate does not include a database.

## Infrastructure & Deployment

* **Web Server:** The built application consists of static files that can be served by any modern web server (e.g., **Nginx**, **Apache**, **Caddy**).
* **Hosting:** The project can be deployed to any static site hosting provider, such as **Firebase Hosting**, **Netlify**, **Vercel**, **AWS S3**, or **GitHub Pages**.
* **Containerization (Optional):** The application can be easily containerized using **Docker** for consistent deployment environments.

## Development & Build Tools

* **Build Tool:** **Angular CLI**. The command-line interface for Angular is used for creating, building, testing, and deploying the application.
* **Package Manager:** **npm**. The Node Package Manager is used for managing all project dependencies.
* **Version Control:** **Git**. Git is the standard for version control and source code management.
* **Testing:**
    * **Unit Testing:** **Jasmine** (framework) and **Karma** (test runner) are the default tools for unit testing in Angular.
    * **End-to-End (E2E) Testing:** The project can be configured to use **Protractor** or more modern alternatives like **Cypress** or **Playwright**.
* **Code Formatting/Linting:**
    * **ESLint:** Used for identifying and reporting on patterns in ECMAScript/JavaScript code.
    * **Prettier:** An opinionated code formatter that enforces a consistent style.
    * **EditorConfig:** Helps maintain consistent coding styles for multiple developers working on the same project across various editors and IDEs.

---

## TECH STACK UPDATE - 2025-09-24 10:21:30

## Technology Stack Document Update - 2025-09-24T10:58:00

This section details the technology stack for the `todoapp1` project.

### Frontend Technologies Update
The frontend will utilize the existing Angular Clarity Boilerplate.

### Backend Technologies Update
For simplicity and rapid development, Node.js with Express.js is recommended for the backend API.  This allows for leveraging existing JavaScript skills and frameworks.  Alternatively, a serverless approach using AWS Lambda or Google Cloud Functions could be considered for enhanced scalability and cost-effectiveness.

### Database Technologies Update
Given the simplicity of the application, SQLite will be used for the MVP.  This provides a lightweight, easy-to-set-up database solution.  For future scalability, a migration to a more robust database such as PostgreSQL or MongoDB could be considered.

### Infrastructure Update
For the initial development, a local development environment will be sufficient.  For deployment, a cloud-based solution like AWS, Google Cloud, or Heroku could be explored.  Docker containers could be considered for easier deployment and environment consistency.

### Development Tools Update
The existing development tools in the base project will be utilized.  This includes Git for version control, Jest for unit testing, and a suitable CI/CD pipeline (e.g., GitHub Actions, CircleCI).


---

## TECH STACK UPDATE - 2025-09-24 10:21:37

## Technology Stack Update - 2025-09-24T10:58:00

This section details the technology stack choices for the `todoapp1` project.

### Frontend Technologies Update
*   **Framework:** Angular
*   **Styling:** Angular Material (chosen for its material design and easy integration with Angular)
*   **State Management:**  Angular's built-in state management capabilities will be sufficient for the MVP.

### Backend Technologies Update
*   **Language:** Node.js with TypeScript (for better type safety and maintainability)
*   **Framework:** Express.js (a minimal and flexible Node.js framework)
*   **API:** RESTful API
*   **ORM:** TypeORM (an ORM that supports PostgreSQL and simplifies database interactions)

### Database Technologies Update
*   **Primary Database:** PostgreSQL

### Infrastructure Update
*   **Deployment:** Docker for containerization
*   **Hosting:** AWS (specifically, an Elastic Beanstalk instance for simple deployment and scaling)

### Development Tools Update
*   **Version Control:** Git
*   **Testing:** Jest, Cypress (for unit and integration testing)
*   **CI/CD:** GitHub Actions


---

## TECH STACK UPDATE - 2025-09-24 10:21:45

## Technology Stack Document Update - 2025-09-24T11:00:00

This section details the technology stack for the `todoapp1` project.

### Frontend Technologies Update
- **Framework:** Angular
- **Styling:** Clarity Design System
- **State Management:** NgRx (optional, for more complex state management)

### Backend Technologies Update
- **Language:** JavaScript
- **Framework:** Node.js with Express.js
- **API:** RESTful API

### Database Technologies Update
- **Primary Database:** SQLite (MVP)
- **Future Considerations:** PostgreSQL or MongoDB for scalability

### Infrastructure Update
- **Local Development:** Local development environment
- **Deployment:**  Heroku (Simple Deployment, Easy Scalability) 
- **Containerization:** Docker (optional, for consistent environments)

### Development Tools Update
- **Version Control:** Git
- **Testing:** Jest, Cypress (for E2E testing)
- **CI/CD:** GitHub Actions


---

## TECH STACK UPDATE - 2025-09-24 10:21:52

## Technology Stack Update - 2025-09-24T11:08:00

This section details updates to the technology stack based on the refined requirements and analysis.

### Frontend Technologies Update
No changes needed at this time. The previously chosen Angular framework with Angular Material is suitable for the project's requirements.

### Backend Technologies Update
No changes are needed. Node.js with TypeScript and Express.js are confirmed as suitable backend technologies.

### Database Technologies Update
PostgreSQL is confirmed as the database technology of choice. This choice ensures data integrity and scalability while being readily supported by the selected backend technologies.

### Infrastructure Update
Docker for containerization and AWS Elastic Beanstalk for hosting remain the preferred choices.  This facilitates easy deployment and scaling.

### Development Tools Update
No changes to the development tools are necessary. Jest and Cypress remain appropriate for unit and integration testing, and GitHub Actions is a suitable CI/CD pipeline.

### Additional Technology Considerations

* **State Management:**  Consider `ngrx` or `RxJS` for handling state management within the Angular application to manage filtering and sorting states efficiently.
* **API Documentation:**  Tools like Swagger or OpenAPI should be used to generate API documentation.  This will improve collaboration and maintainability.
* **Testing:**  Thorough unit tests should be written to cover all endpoints of the API and functionality of the Angular frontend.  Integration tests will be essential to cover both the frontend and the backend interaction.

