sealedmarket

Job ID: 39562286

Budget: €10,000 – €20,000 EUR

## Technical Specification: Online Marketplace for Sealed Trading Card Products

### 1. Project Overview

**Objective:** Build a custom online marketplace for buying and selling sealed trading card products (e.g., Pokémon, Magic: The Gathering, Yu-Gi-Oh!) with advanced features inspired by cardmarket.com and buff.163.com.

**Key Features:**

* Product Listings: Sealed packs, boxes, sets, decks
* Buy Orders: Automated limit orders
* Offers: Direct offer submissions on listed items
* User Inventory: Ownership dashboard and transaction history
* Dynamic Pricing: Live price updates based on demand and offers
* Secure Payments & Escrow
* Ratings & Reviews for buyers and sellers
* Notifications: Email, push, and in-app

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### 2. Functional Requirements

1. **Authentication & Authorization**

* Email/password registration and login
* OAuth via Google and Facebook
* Optional KYC verification
* User roles: Buyer, Seller, Administrator

2. **User Profile**

* Profile management and payment method setup
* Display rating score and transaction history

3. **Product Listings**

* Create listing for sealed product: title, description, images, certification status
* Listing types: “Buy Now”, Auction, Buy Order
* Edit, pause, or remove active listings

4. **Buy Orders**

* User-defined quantity, price, and duration
* Automatic matching against existing sell listings
* Instant execution when conditions are met

5. **Offers**

* Submit direct offer on specific listing
* In-app chat module for buyer-seller negotiation

6. **Inventory Management**

* Dashboard showing active listings and completed transactions
* Bulk import via CSV or API

7. **Pricing & Analytics**

* Historical price charts and trends
* Real-time price recommendations based on market data
* Data export (CSV)

8. **Payments & Escrow**

* Integration with Stripe and PayPal
* Funds held in escrow until delivery confirmation
* Refund and dispute resolution workflows

9. **Notifications & Messaging**

* Email, WebSocket push, and in-app notifications
* Threaded messaging between buyers and sellers

10. **Administration & Moderation**

* Admin dashboard for user and listing management
* Dispute handling and reporting tools
* Activity logs and audit trails