
Learn to build decentralized todo app by setting up Hardhat and Alchemy, writing Solidity for add, display, and remove, testing, deploying to testnet, and building a React frontend with MetaMask.
Create a solidity task contract named TaskContract, define a Task struct (id, title, isDeleted) and task array, map tasks to owners, and add an external addTask function that emits event.
Connect Metamask wallet in a decentralized todo app by writing a connect wallet function, validating the correct network, retrieving accounts, and enabling adding tasks.
Apply basic css styling to the list and connect wallet button in the decentralized todo app, including centering, borders, colors, and typography. Conclude by testing the app and sharing code.
Blockchain is a key technology behind Web3. It is most-often associated with the cryptocurrency bitcoin and is the technology that underpins it. The bitcoin blockchain is a public ledger of activity of the bitcoin network. But bitcoin is not owned by a single company or person and it is not issued by a central authority like a central bank. Instead, it is decentralized and the network is maintained by a global group of people running specialized computers.
In this course we will learn how to create a complete decentralized Todo application from scratch. We will be using Solidity for the smart contract, hardhat for testing and deployment purpose, Ethers js to communicate with the contract, Metamask to sign the transaction, React js for the frontend and Alchemy as the blockchain node provider. By the end of the course you will understand all the concepts required to apply for a developer job or even build your own application on the Ethereum blockchain.
Our stack
Solidity (To write our smart contract)
Hardat (build, test and deployment framework)
React (Create our frontend)
Ethers (web3 library for interacting with the blockchain and our smart contract)
Alchemy (Ethereum node provider)
As cryptocurrency and blockchain attain their increasing success rate every year, there is an increase in job opportunities provided in blockchain and cryptocurrency sector. The jobs in blockchain are growing at an exponential rate of 2,000-6,000% while offering salaries higher than 50-100% than conventional developers. In the field of blockchain, one can work as a blockchain developer.