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| # Technical Specifications | ||
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| [](https://github.com/your-org/your-repo-name/actions) | ||
| [](https://github.com/your-org/your-repo-name/releases) | ||
| [](https://github.com/your-org/your-repo-name/blob/main/LICENSE) | ||
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| --- | ||
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| ## Overview | ||
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| This document provides a comprehensive overview of the technical specifications for the project. It covers the architecture, technology stack, design decisions, and system requirements necessary for the development and deployment of the system. | ||
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| ## Architecture | ||
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| The system is composed of the following key components: | ||
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| 1. **Frontend**: | ||
| - **Technology**: React.js | ||
| - **Description**: The frontend is responsible for rendering the user interface and handling user interactions. It communicates with the backend API to retrieve and display data. | ||
| - **Key Features**: | ||
| - Component-based architecture | ||
| - State management using Redux | ||
| - Responsive design with Bootstrap | ||
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| 2. **Backend API**: | ||
| - **Technology**: Node.js, Express.js | ||
| - **Description**: The backend API handles all business logic, processes client requests, and interacts with the database. It serves as the intermediary between the frontend and the database. | ||
| - **Key Features**: | ||
| - RESTful API design | ||
| - JWT-based authentication | ||
| - Input validation and error handling | ||
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| 3. **Database**: | ||
| - **Technology**: PostgreSQL | ||
| - **Description**: The database stores all persistent data, including user information, system logs, and application data. It is designed to handle complex queries and ensure data integrity. | ||
| - **Key Features**: | ||
| - ACID compliance | ||
| - Relational data model | ||
| - Support for JSON data types | ||
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| ## Design Decisions | ||
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| ### 1. **Technology Stack** | ||
| - **Frontend (React.js)**: Chosen for its declarative, component-based approach, which simplifies the development of complex user interfaces. React's virtual DOM ensures efficient rendering, making it ideal for dynamic applications. | ||
| - **Backend (Node.js with Express.js)**: Selected for its non-blocking, event-driven architecture, which is well-suited for handling concurrent requests in a scalable manner. Express.js provides a minimalistic yet powerful framework for building RESTful APIs. | ||
| - **Database (PostgreSQL)**: Preferred for its robustness, advanced querying capabilities, and support for complex data relationships. PostgreSQL's support for JSON data types also allows for flexibility in handling semi-structured data. | ||
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| ### 2. **Security Considerations** | ||
| - **Authentication**: Implemented using JSON Web Tokens (JWT) to securely authenticate users. Tokens are issued on login and must be included in the header of subsequent requests to protected endpoints. | ||
| - **Data Encryption**: Sensitive data, such as passwords and personal information, is encrypted before being stored in the database. The application uses industry-standard encryption algorithms to protect user data. | ||
| - **Input Validation**: All input data is validated both on the client and server sides to prevent common vulnerabilities like SQL injection and cross-site scripting (XSS). | ||
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| ### 3. **Performance Optimization** | ||
| - **Caching**: Frequently accessed data is cached using Redis, reducing the load on the database and improving response times. | ||
| - **Asynchronous Processing**: Time-consuming tasks, such as sending emails or processing large datasets, are handled asynchronously using a job queue (e.g., Bull or RabbitMQ), ensuring that the API remains responsive to user requests. | ||
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| ### 4. **Scalability** | ||
| - **Horizontal Scaling**: The application is designed to scale horizontally by adding more instances of the backend API and database replicas. Load balancing is employed to distribute traffic evenly across instances. | ||
| - **Microservices Architecture**: Although the current implementation is monolithic, the architecture is designed with a future transition to microservices in mind. This would allow for independent scaling and deployment of different application components. | ||
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| ## System Requirements | ||
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| ### 1. **Minimum Requirements** | ||
| - **RAM**: 4 GB | ||
| - **Storage**: 10 GB | ||
| - **Operating System**: Linux (Ubuntu 18.04+), macOS, or Windows 10 | ||
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| ### 2. **Recommended Requirements** | ||
| - **RAM**: 8 GB | ||
| - **Storage**: 20 GB SSD | ||
| - **Operating System**: Linux (Ubuntu 20.04+), macOS (10.15+) | ||
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| ### 3. **Software Dependencies** | ||
| - **Node.js**: v14.x or higher | ||
| - **PostgreSQL**: v12.x or higher | ||
| - **Redis**: v6.x or higher (for caching, optional) | ||
| - **Docker**: Required for containerized deployment (optional) | ||
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| ## Deployment Considerations | ||
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| ### 1. **Environment Configuration** | ||
| - **Environment Variables**: The application relies on environment variables for configuration. Key variables include `DATABASE_URL`, `JWT_SECRET`, and `REDIS_URL`. These should be set in a `.env` file for local development or configured in the deployment environment. | ||
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| ### 2. **Continuous Integration/Continuous Deployment (CI/CD)** | ||
| - **GitHub Actions**: CI/CD pipelines are set up using GitHub Actions. The pipeline runs tests, builds the application, and deploys it to a staging environment on every push to the `main` branch. Deployment to production is triggered manually after successful staging tests. | ||
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| ### 3. **Monitoring and Logging** | ||
| - **Monitoring**: The application is monitored using Prometheus, with Grafana dashboards providing real-time insights into system performance and health metrics. | ||
| - **Logging**: Logs are centralized using the ELK stack (Elasticsearch, Logstash, Kibana), allowing for efficient searching and analysis of log data. | ||
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| ## Conclusion | ||
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| This technical specifications document provides a detailed overview of the system's architecture, design decisions, and requirements. It serves as a guide for developers, system administrators, and stakeholders involved in the development, deployment, and maintenance of the system. | ||
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| For more information or to contribute to the project, please visit the [GitHub repository](https://github.com/your-org/your-repo-name). | ||
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