The Charity Platform

A modern, multi-tenant fundraising platform built with ASP.NET Core 8.0, featuring event-driven architecture, background job processing, and a robust role-based authorization system.

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📋 Table of Contents

• Overview
• Key Features
• Technology Stack
• Architecture
• Getting Started
  • Installation
  • Database Setup
  • Configuration
• API Documentation
• Contact

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📖 Overview

The Charity Platform is a complete fundraising solution that enables organizations to create and manage charitable campaigns, accept donations, and collaborate through shared campaigns. Built with a clean, event-driven architecture, the platform ensures scalability, maintainability, and a seamless experience for all stakeholders.

Who Uses the Platform?

User Role	Capabilities
Super Admin	Full system oversight, manages all organizations, campaigns, and users
Organization Admin	Manages their organization, campaigns, sub-admins, and payment info
Sub-Admin	Creates and manages campaigns (cannot update payment info)
Regular User	Views campaigns, makes donations, views donor lists

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✨ Key Features

Campaign Management

• Solo Campaigns – Organizations create and manage independent campaigns.
• Shared Campaigns – Multiple organizations collaborate on a single campaign.
• Invitation System – Organizations can invite others to join shared campaigns.
• Campaign Progress Tracking – Real-time updates on donation progress and milestones.
• Status Management – Active, Completed, Expired, Dismissed, Postponed.
• Deadline Extensions – Campaign deadlines can be extended with automatic notifications.

Donations & Payments

• Secure Payment Processing – Integration with Paymob payment gateway.
• Donation History – Users can view their donation history.
• Campaign Progress Updates – Donations automatically update campaign achievements.
• Milestone Notifications – Automated emails at 25%, 50%, 75%, and 100% targets.

Organizations & Users

• Multi-Tenant Architecture – Each organization operates independently.
• Complete Authentication – Login, Signup, Email Verification, Password Reset.
• Role-Based Authorization – Fine-grained permissions with resource-based checks.
• Soft Delete – All entities support soft delete for data recovery and audit trails.

Background Jobs (Hangfire)

• Campaign Deadline Reminders – Daily reminders for campaigns ending soon.
• Auto-Expire Campaigns – Hourly job to expire campaigns past their deadline.
• Weekly Campaign Digest – Weekly summary for SuperAdmins.
• Expire Old Invites – Daily cleanup of expired shared campaign invites.

Notifications & Communication

• Email Notifications – Automated emails for campaign creation, completion, milestones, deadlines.
• Event-Driven Architecture – Decoupled notifications via events and handlers.
• Organization Contact Methods – Multiple contact methods per organization.

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🛠️ Technology Stack

Layer	Technology
Backend Framework	ASP.NET Core 8.0
ORM	Entity Framework Core 8.0
Database	SQL Server (Azure SQL)
Authentication	ASP.NET Core Identity + JWT
Authorization	Custom policies + resource-based handlers
Background Jobs	Hangfire
Event System	Custom EventDispatcher + EventHandlers
Payment	Paymob
Mapping	Mapperly (Source Generator)
API Documentation	Swagger / OpenAPI
Deployment	Azure App Service + Azure SQL + GitHub Actions

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🏗️ Architecture

┌────────────────────────────────────────────────────────────┐
│                    PRESENTATION LAYER                     │
│  • API Controllers (JWT Auth)                           │
│  • Custom Authorization Attributes                      │
│  • Middleware (Global Error Handling)                   │
├────────────────────────────────────────────────────────────┤
│                    BUSINESS LOGIC LAYER                  │
│  • Services (Campaign, Organization, Donation, User)    │
│  • Event Dispatcher + Handlers                         │
│  • Background Jobs (Hangfire)                          │
│  • DTOs + Mappers                                      │
├────────────────────────────────────────────────────────────┤
│                    DATA ACCESS LAYER                     │
│  • Entities + DbContext                                │
│  • Repository Pattern                                  │
│  • Migrations                                          │
└────────────────────────────────────────────────────────────┘

Key Architectural Decisions

Decision	Rationale
3-Tier Architecture	Clear separation of concerns, maintainable, testable
Repository Pattern	Consistent data access, easy to mock for testing
Event-Driven Design	Loose coupling, easy to add new features
Background Jobs	Offload heavy operations (notifications, digests)
Custom Authorization	Fine-grained permissions, secure by design
Soft Delete	Data recovery and audit trails

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🚀 Getting Started

Installation

1. Clone the repository

   git clone https://github.com/yourusername/the-charity-platform.git
   cd the-charity-platform

2. Restore dependencies

   dotnet restore

3. Build the solution

   dotnet build

Database Setup

1. Update the connection string in appsettings.Development.template.json:

   "ConnectionStrings": {
     "DefaultConnection": "Server=localhost,1433;Database=TheCharityDB;User Id=sa;Password=YourStrong@Passw0rd;Trusted_Connection=False;MultipleActiveResultSets=true;TrustServerCertificate=True"
   }

2. Apply migrations

   dotnet ef database update

Configuration

1. Rename the template file:

   cp appsettings.Development.template.json appsettings.Development.json

2. Update configuration values:

   • Jwt:Key – Generate a secure key (minimum 32 characters)
   • EmailSettings – Configure your SMTP settings
   • Authentication – Configure Google/Facebook OAuth (optional)

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📚 API Documentation

Once running, Swagger is available at:

https://localhost:7204/swagger

📧 Contact

• Author: Abdelrahman Nabil
• Email: abdelrahmannabil3950@gmail.com
• LinkedIn: www.linkedin.com/in/csgabdelrahman