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DeHub

DeHub is a decentralized video sharing & social media platform on Ethereum blockchain.

Dehub is a decentralized version of the Instagram platform where users can browse photos, see details of a specific posts, create a post and earn NFTS, uploads the photo files to IPFS by using nft.storage and stores those IPFS CIDs to the blockchain network.

And it has a video sharing platform DeTube, it uploads the video files to IPFS by using web3.storage and stores those IPFS CIDs to the blockchain network.

Demo

Development instructions

Installation

Make sure you have truffle installed on your computer.

npm install -g truffle

Install dependencies

npm i

Compile the smart contracts

truffle compile

Deploy the smart contract

truffle migrate --network matic

Make sure to add your 12 word Secret Recovery Phrase of your (preferably newly generated and testnet-only) MetaMask wallet in .env with the variable name REACT_APP_MNEMONIC. This will be loaded by truffle at runtime, and the environment variable can then be accessed with process.env.REACT_APP_MNEMONIC.

For development and testing, you have to create your own web3.storage API token. To do that, login to web3.storage -> create a new API token -> copy the API token Then start the application...

npm start

or

npm run build

Builds the app for production to the build folder.
It correctly bundles React in production mode and optimizes the build for the best performance.

OR, To develop on ganache blockchain, open ganache and import the accounts by adding your ganache private keys in MetaMask.

truffle migrate

⚠️ If dealing with “JavaScript heap out of memory” error after npm start then use the following command to solve it: For Linux/macOs: export NODE_OPTIONS="--max-old-space-size=8192" For Windows: $env:NODE_OPTIONS="--max-old-space-size=8192"

How it's made

DeHub application makes use of the following softwares:

  • Deployed smart contracts on the Polygon (Matic) Mumbai test network.

  • Used Truffle & MetaMask.

  • Upload and store files to IPFS NFTStorage IPFS platform.

  • Upload and store video files to IPFS Web3Storage IPFS platform.

  • Built two simple Solidity smart contract, one for minting NFTs, creating posts and operations interacting with the contract and the other for video sharing (DeTube)

  • OpenZeppelin Library to customize smart contract

  • Develop, deploy, and run tests the application with Ganache (local blockchain)

  • Build and use React Js to create components for single-page applications.

  • Material-UI to build faster, beautiful, and more accessible React applications.

  • nft.storage usgae in the DApp(line 40)

  • web3.storage usgae in the DApp(line 36)

Host the DApp on IPFS using Fleek

You cannot call this project a "Decentralized Application" if you are hosting it on any centralized server. To make it decentralized, again we're going to use IPFS. Create a new repository on GitHub and push all the changes. Sign up on Fleek -> Add new site -> Connect GitHub repo -> select framework (React in our case) -> Deploy Site That's it! you'll get the fleek link of your DApp after deploying the site, you can assign a domain and share your DApp link with anyone in the world.