DevEvent Sync

DevEvent Sync is a modern, full-stack platform designed to connect developers through tech events. It goes beyond simple CRUD, offering an intelligent, personalized, and highly interactive experience for discovering, hosting, and managing developer meetups and hackathons.

Key Features

Authentication and Authorisation

security is handled via Next-Auth v5, implementing a robust, role-aware authentication system.

• Multi-Provider Login: Supports OAuth sign-in via GitHub and Google, as well as traditional Email/Password credentials.
• Session Management: Uses secure, encrypted sessions to persist user state across the application.
• Protected Routes: Middleware and server-side checks ensure that private pages (like /create-event or /profile) are inaccessible without a valid session.

Event System Integrity & Concurrency

-Create,Update,Delete and Share Events : allows adding date,time,venue,agenda,EventImage,tags,NumberOfSeats,Overview to manage events

• Atomic Booking Engine: Engineered a race-condition-free booking system using MongoDB Atomic Operations ($inc, $expr). This prevents overselling by handling capacity checks and updates in a single, indivisible database transaction.

• Smart Inventory Management: Real-time "Sold Out" and "Almost Full" states are enforced at the database level, ensuring 100% data consistency even under high-concurrency load.

Intelligence & Personalization

• Smart Recommendation Engine: A content-based filtering system that curates a "For You" sidebar based on the user's specific technical interests (e.g., "React", "AI").

• Time-Aware Feed: The homepage intelligently separates "Happening Soon" (Urgent) events from general discovery, adapting to the user's local time.

• Dynamic Greetings: Personalized welcome messages that change based on the time of day.

The Attendee Experience : allows better Developer Experience to user while sharing events on other platforms like X, whatsapp , Meta, and others

• Dynamic Social Cards: Automated Open Graph (OG) image generation ensures every event link shared on Twitter/LinkedIn looks professional with dynamic titles and dates.

Professional Identity

• Developer Profiles: A comprehensive profile system acting as a mini-portfolio, showcasing the user's bio, institution, location, GitHub/Portfolio links, and confirmed event schedule.

Performance & UX

• Optimistic Bookmarking: Implemented React 19's useOptimistic hook to provide a zero-latency "Save for Later" experience, ensuring the UI updates instantly while the server processes in the background.

• Client-Side Validation: Instant file size checks (4MB limit) prevents unnecessary server load and improves upload UX.

• Skeleton Loading: Custom shimmer effects preventing layout shifts (CLS) during data fetching.

🛠️ Tech Stack

• Framework: Next.js 15 (App Router)
• Language: TypeScript
• Database: MongoDB (Mongoose)
• Authentication: Next-Auth v5 (Google, GitHub, Credentials)
• Styling: Tailwind CSS, Shadcn/ui
• State Management: Server Actions & React Hooks (useOptimistic, useTransition)
• Visuals: Framer Motion (Animations), OGL (WebGL Effects)
• Utilities: qrcode (Ticket generation), date-fns, zod
• Analytics: PostHog

🏁 Getting Started

To get a local copy up and running, follow these simple steps.

Prerequisites

• Node.js (v20 or later)
• npm
• A MongoDB database instance

Installation

1. Clone the repository:

   git clone [https://github.com/manaskng/Dev-Event_Sync.git](https://github.com/manaskng/Dev-Event_Sync.git)

Navigate to the project directory: Bash cd Dev-Event_Sync Install dependencies: Bash npm install Set up environment variables: Create a .env.local file in the root of the project and add the following variables. Code snippet

Database

MONGODB_URI=your_mongodb_connection_string

Auth (Generate with openssl rand -base64 32)

AUTH_SECRET=your_next_auth_secret

OAuth Providers

GITHUB_CLIENT_ID=your_github_client_id GITHUB_CLIENT_SECRET=your_github_client_secret GOOGLE_CLIENT_ID=your_google_client_id GOOGLE_CLIENT_SECRET=your_google_client_secret

Image Storage

CLOUDINARY_CLOUD_NAME=your_cloud_name CLOUDINARY_API_KEY=your_api_key CLOUDINARY_API_SECRET=your_api_secret

Base URL (Set to your Vercel URL in production)

NEXT_PUBLIC_BASE_URL=http://localhost:3000

Analytics (Optional)

NEXT_PUBLIC_POSTHOG_KEY=your_key Run the development server: Bash npm run dev Open http://localhost:3000 in your browser to see the result.

📂 Project Structure app/: Next.js 15 App Router structure. (auth)/: Login/Register logic. events/: Event details, creation, and editing flows. profile/: User dashboard and settings. components/: Reusable UI components (EventCard, TicketCard, etc.). database/: Mongoose schemas for User, Event, and Booking. lib/: actions/: Server Actions responsible for all data mutations. mongodb.ts: Cached database connection for performance.

Built with ❤️ by Manas Raj