wufei90 / mmr-album-collection

Decentralized Album Collection Platform

Decentralized Album Collection

DApp to manage, display and share an online album collection linked to a Metamask wallet, deployed on Polygon.

The App logic consists of two smart contracts:

• NFT Contract - This contract allows users to mint albums as ERC-721 tokens.
• Collection Contract - This contract allows users to add, transfer or remove albums from their collection.

Prerequisites

The followings are required for this project:

1. Node.js installed on your machine
2. Metamask wallet extension installed as a browser extension

The Stack

This is a full stack application using:

• Web application framework - Next.js
• CSS framework - Tailwind
• Solidity development environment - Hardhat
• File Storage - IPFS
• Ethereum Web Client Library - Ethers.js

Getting Started

Clone the project and install all dependencies:

npm install

Hardhat configuration is set up for a deployment on the Polygon Mumbai test network, so configure and connect to the Polygon Mumbai test network on Metamask, and get some Matic from the Matic Faucet so that you can interact with the application.

Running the Project

To deploy the smart contract, create a .env file at the root of the project using the template provided in the project. You will need to get:

• A RPC Endpoint URL from Infura or Alchemy (Mumbai Network)
• A Polygonscan API Key
• The Private Key from your Metamask deployer account

Execute the following command to deploy to the Polygon network:

npx hardhat run scripts/deploy.js --network mumbai

When the deployment is complete, the CLI should print out the addresses of the contracts that were deployed. Replace the content of config.js with these values.

You can verify the contracts on Polygonscan by running the following command, replacing the address of both deployed contracts:

npx hardhat verify --network mumbai <deployed-contract-address>

Finally, you can now test out the app by running the command:

npm run dev

Next Steps

• Add the transfer to another wallet feature
• Display activity feed of the user

Updates

• Aug 01, 2022: Created front end page with creation, removal and display features
• Jul 27, 2022: Created both smart contracts, deployed and verified on Polygon Mumbai network

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