Multilayered Materials Trading App Development

Creating an app with these requirements involves several modules, including user management, material tracking, payment processing, and dynamic pricing. Here’s an outline of how you could approach building this app: 1. User Management and Roles • User Registration: Allow users to register and define their level (L1, L2, L3, or L4). • Role-based Access: Each user role (L1 to L4) should have specific permissions. For instance, L1 can list materials for sale, L2 can view and buy from L1, and so on. • Profile Management: Each user should have a profile where they can view their transactions, current pricing, and settings (like preferred payment methods). 2. Material Management • Material Listing: Allow users at any level to list materials for sale, with details like type, quantity, and location. • Material Tracking: Implement a system to track which level currently holds a specific batch of materials as it moves from L1 to L4. 3. Pricing and Payment Mechanism • Dynamic Pricing Management: Provide the business owner with an interface to update prices for each level, which can be applied daily or weekly as needed. • Price Display: Each user should see the relevant price when they view or select material to purchase. • Payment Options: • Cash Payments: The app should log cash payments once confirmed by both buyer and seller. • Online Payments: Integrate a payment gateway (such as Stripe or PayPal) to support online transactions. The app would handle online payments automatically once the lower-level user approves. 4. Transaction Logging and Acceptance • Transaction Flow: When a lower-level user (L1 or L2, etc.) delivers material to a higher level (e.g., L2 or L3), they submit a delivery transaction in the app. The receiving user confirms receipt, and the payment is logged. • Receipt and Confirmation: Upon each transaction, the receiving user should confirm the transaction in the app. The system will log the transaction with the date, price, and material quantity. 5. Admin Dashboard • An admin dashboard should provide the business owner with an overview of all transactions, current material levels, and pricing. • They should also have control over which users are allowed on the platform and be able to manage any disputes or issues. 6. Tech Stack Suggestions • Backend: Node.js or Django (Python) for API development to handle the logic and data storage. • Database: Use a database like PostgreSQL or MongoDB to handle material and user data. • Frontend: React Native for cross-platform development, allowing you to create apps for both Android and iOS. • Payment Integration: Stripe, PayPal, or a region-specific payment gateway for handling online transactions. 7. Security and Data Protection • Authentication: Use JWT (JSON Web Token) for secure user authentication. • Encryption: Ensure that sensitive data, especially payment information, is encrypted both in transit and at rest. 8. Notifications and Communication • Send notifications to users when they need to confirm transactions or if there is a pricing update. • Integrate SMS or push notifications for real-time alerts regarding material hand-offs or payment status. Summary of Development Phases: • Phase 1: Set up user management, roles, and material listing. • Phase 2: Implement transaction tracking and the dynamic pricing system. • Phase 3: Integrate payment processing and build the admin dashboard. • Phase 4: Finalize and test the app, ensuring secure data handling and ease of use. Brief Requirement: 4 levels to be defined and there will be only 2-3 products at the starting. Every person needs to install the app and define their level, based on which he has to collect the product from lower level and deliver to higher level. L1 doesnt need to collect as he is the producer. User journey: 1. User installs the app 2. On opening, he should get an option to sign up or login 3. ⁠He should select his level, which should be a mutable property as he can change levels 4. ⁠he should update the quantity of product he is willing to sell and at what location 5. ⁠the level who is picking up should tell the time and date of pickup, according to which seller should update location 6. ⁠on delivery, acknowledgement should be logged 7. ⁠payment gateway is not needed at this stage. They can pay by whatever means they want. We just need the acknowledgement. 8. ⁠we can have an attribute of quantity collected or delivered by each level user 9. ⁠price to be set by the admin Other details: 1. L1 is only seller, L2 and L3 raw both seller and buyer, L4 is only buyer 2. Attribute - Minimum quantity at each level