SignalR DotNet Real-World Project Demo

This repository provides a real-life implementation of SignalR with .NET and Angular, showcasing how to use SignalR to enable real-time communication in modern web applications.

SignalR simplifies adding real-time functionality to applications, enabling bi-directional communication between server and client. This project adheres to best practices for both .NET and Angular to help developers create scalable and maintainable solutions.

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Features

• Real-Time Communication: Demonstrates how SignalR enables real-time updates without page reloads.
• Client-Server Interaction: A practical example of how the server and client communicate seamlessly.
• Scalable Design: Structured for extensibility and integration into larger projects.
• API Documentation: Includes Swagger for clear API documentation and testing.
• Database Integration: Uses SQLite with Entity Framework Core for lightweight and efficient data management.
• Cross-Origin Resource Sharing (CORS): Configured for secure client-server communication.
• Unit Testing: Includes unit testing to ensure application reliability.
• Containerization: Configured with Docker to simplify deployment.

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Tech Stack

Backend:

• .NET Core with SignalR
• EF Core for database management
• SQLite for lightweight data storage
• Swagger for API documentation
• CORS for secure cross-origin communication

Frontend:

• Angular for a responsive, dynamic user interface

Tools & Practices:

• Docker for containerization and deployment
• Unit Testing to ensure code quality
• Best Practices for clean and maintainable code in both .NET and Angular

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Project Structure

The repository is organized as follows:

• SignalR.Client:
  Contains the Angular-based client-side implementation, demonstrating how to connect to the SignalR hub and receive real-time updates.

• SignalR:
  Contains the server-side implementation with a SignalR hub configured to broadcast updates, and APIs following best practices.

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Prerequisites

Ensure you have the following installed:

• .NET SDK (6.0 or higher)
• Node.js and npm (for Angular)
• Docker (optional, for containerized deployment)
• Visual Studio or any other IDE with .NET support
• A modern browser for testing the client-side application

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Getting Started

Follow these steps to run the project locally:

1. Clone the Repository

git clone https://github.com/dipjyotisikder/signalr-dotnet-demo.git  
cd signalr-dotnet-demo

.NET Best Practices

1. Dependency Injection (DI):
   Ensures loose coupling and enhances testability.
2. Entity Framework (EF) Core Migrations:
   Maintains database schema consistency across development environments.
3. Swagger Integration:
   Provides user-friendly and interactive API documentation.
4. Exception Handling Middleware:
   Ensures graceful error handling and consistent API responses.
5. CORS Configuration:
   Allows controlled access to resources across different domains.
6. Layered Architecture:
   Promotes clean separation of concerns for maintainable and scalable code.

Angular Best Practices

1. Reactive Forms:
   Implements a structured approach to form handling with improved validation.
2. State Management:
   Effectively manages the component state using libraries like NgRx.
3. Lazy Loading:
   Optimizes performance by loading modules only when needed.
4. Service-Oriented Architecture:
   Ensures components are reusable and testable by relying on services.
5. Strict Typing:
   Adopts TypeScript best practices for better reliability and maintainability.

Use Cases

This project can serve as a foundational starting point for building:

1. Live Chat Applications:
   Enable real-time communication between users.
2. Real-Time Notifications:
   Deliver updates or alerts instantly to users.
3. Collaborative Tools:
   Create applications for shared documents, whiteboards, or task management.
4. Dynamic Dashboards:
   Provide real-time analytics and visualizations tailored to user needs.