Create Ethereum Transaction with Infura

This repo is intended to show how the Ethereum transaction can be made with Infura and web3.js v1.3.3.

The project code, higly influenced by gist of @raineorshine.

It simply generates a raw transaction and sign it with a private key of the sender address. Then Infura API is used to broadcast this raw transaction to Ethereum's Ropsten test network.

Pre-requirement

We will use Infura as our Ethereum client; so enroll and get your project ID from the dashboard.

Steps

1. Install packages

npm install

2. Create .env file

You may take .env-sample file as reference.

cp .env-sample .env

Update the project_id variable with the project ID that you will have from Infura.

3. Update Address Pair on .env File

We need to have a public address and the private key derived from this public address. Update the .env file if you already have it. If you don't have any, just run the following command :

node ./generate-addr.js

Update the .env file accordingly.

4. Get Free Testnet Ethereum

You may visit faucet.ropsten.be or any other testnet faucet and get your free ethers to your address.

5. Check your Tx, on code (It is hardcoded!)

Visit send-tx.js. You may leave it as it is. If you use this code for the mainnet to do a real transaction, do not forget to change it!

const addressTo = "0x1463500476a3ADDa33ef1dF530063fE126203186";

const amount = "123"

6. Run!

node ./send-tx.js

Sample output should look like this :

result :  { blockHash:
   '0x06053ada933fa0c31b7c3c48e6e1f01fa996884b3a9227ea3b6c9bb22e63e8a7',
  blockNumber: 9573032,
  contractAddress: null,
  cumulativeGasUsed: 819814,
  from: '0x1bb5849d23f2d8351dfa7d9ed3872cbbe5eafc49',
  gasUsed: 21000,
  logs: [],
  logsBloom:
   '0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000',
  status: true,
  to: '0x1463500476a3adda33ef1df530063fe126203186',
  transactionHash:
   '0xe971803ad48941b713e8dac98bb59642520b84b3ae484a12b934e0df37cc610c',
  transactionIndex: 3 }

7. Check your Tx on Etherscan

Check your transactionHash, you can search it on Ropsten network.

Or directly go via link : https://ropsten.etherscan.io/tx/0xe971803ad48941b713e8dac98bb59642520b84b3ae484a12b934e0df37cc610c