public/subjects/blockchain/send-hash

Send Hash

In this exercise, you will register the hash of a document on the blockchain.

Instructions

Write a node script that provides a function sendHash() that:

• creates a hash sha256 of a string provided as parameter
• connects to a local node (http://localhost:8545)
• sends a transaction to an address with the hash of the document in the data field

function sendHash(text) {
  //...
}
module.exports = sendHash

Notions

• hardhat
• ganache
• ethers
• web3