Build a Simple Decentralized File Storage DApp
Eliminate dependency on centralized storage platforms by building a Web3-based system that uses IPFS and blockchain for secure file management.Centralized storage platforms are prone to censorship, breaches, and downtime. Decentralized storage ensures availability, privacy, and user ownership by distributing files across peer-to-peer networks with verifiable integrity.
Build a DApp where users can upload files to IPFS and store the file hashes on the blockchain using smart contracts. This allows tamper-proof file sharing, integrity validation, and public or permissioned access to content.
File Upload via IPFS
Files are uploaded to a distributed network using IPFS and returned with a content hash (CID).
Smart Contract File Registry
Each file’s hash and metadata (owner, timestamp) are stored securely on the blockchain.
Public or Private Access
Users can choose to make files public or restrict access via wallet authentication.
Immutable File History
Any uploaded file cannot be altered, ensuring content integrity and proof of existence.
The DApp allows users to upload files via a React interface. The files are stored on IPFS, and their hashes are saved on a blockchain smart contract for future retrieval and verification. MetaMask is used to sign transactions and authenticate users.
- IPFS for file hosting and decentralized access
- Smart contract registry for CID and metadata
- React-based frontend with upload & retrieval UI
- MetaMask for user authentication and payment
- Web3.js or Ethers.js to interact with blockchain
Blockchain
Ethereum or Polygon (for storing file hashes)
File Storage
IPFS (InterPlanetary File System) for hosting files
Smart Contracts
Solidity with OpenZeppelin access control
Frontend
React.js with IPFS API and MetaMask integration
1. Configure IPFS Node/API
Set up IPFS client in your React app or use services like Web3.Storage or Infura IPFS.
2. Design Smart Contract
Write a Solidity smart contract to store file CIDs, owner addresses, and upload timestamps.
3. Build Upload Interface
Create a drag-and-drop upload feature in React that sends files to IPFS and stores the hash on-chain.
4. Implement Access Control
Add authentication so that only file owners or whitelisted wallets can access private files.
5. Test on Testnet and Launch
Deploy to Mumbai or Goerli testnet, test end-to-end flow, and monitor smart contract logs.
Take Control of Your Files with Web3 Storage
Build a decentralized file system that’s private, censorship-resistant, and blockchain-secured.
Share your thoughts
Love to hear from you
Please get in touch with us for inquiries. Whether you have questions or need information. We value your engagement and look forward to assisting you.
Contact Us
Contact us to seek help from us, we will help you as soon as possible
contact@projectmart.inCustomer Service
Contact us to seek help from us, we will help you as soon as possible
+91 7676409450Text NowGet in touch
Our friendly team would love to hear from you.
