Send and Get Transaction using web3.

1. Setting up the environment

Most Ethereum libraries and tools are written in JavaScript, and one of that is Truffle. If you're not familiar with Node.js, it's a JavaScript runtime built on Chrome's V8 JavaScript engine. It's the most popular solution to run JavaScript outside of a web browser.

2. Installation

$ npm i

Save Your sensitive Information in .env file

API_KEY="" PRIVATE_KEY="" CONTRACT_ADDRESS=""

3. Compiling contracts

To compile the contract run "npx hardhat compile" in your terminal. The compile task is one of the built-in tasks.

Use existing .env file in Script folder:

Before deploying smart contract first you will have to need .env file in which you will write secret keys, mnemoics, private keys and api-key of your ethereum node. And then you use following steps. But must memories should be memories that .env should in those folder where sendTx and getTx are placed!!!!!!!

4. Deploying Contract

$ "npx truffle migrate --network rinkeby"

Compilation finished successfully and then migration finished succesfully and then your contract will deploy on rinkeby ethereum testnet . The contract has been successfully deployed and is ready to be used.

5. Sending transaction to blockchain

Send the transaction using web3-js. Run the node-js script sendTx.js present in the scripts folder, using following command:

$ node sendTx.js

6. You have successfuly enterName "Zia"

7. Getting transaction from blockchain

Get the transaction using web-3-js. Run the node-js script getTx.js present in the scripts folder, using following command:

$ node getTx.js

Tx is succesfully deployed. Your added Name is "Zia"