Web3 Scripts

Web3 RPC calls for sending multiple transactions or deploying and interacting with smart contract.

Installation

cd web3 && npm i

Usage

Be sure to add an unlocked eth address in the From fields of both functions

Send transactions x3

node send_transactions.js

Deploy and interact with smart contract

npm run testDeploys

Infomation about events emitted

The abi of the contract deployed is:

[
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": false,
        "internalType": "uint256",
        "name": "count",
        "type": "uint256"
      }
    ],
    "name": "event1",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": true,
        "internalType": "address",
        "name": "owner",
        "type": "address"
      }
    ],
    "name": "event2",
    "type": "event"
  },
  {
    "inputs": [
      {
        "internalType": "bool",
        "name": "_name",
        "type": "bool"
      }
    ],
    "name": "emitTest",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  }
]

As you can see in the abi, there are two events event1 with a count uint256 emitted and event2 with owner address indexed and emitted.

Signatures for each events

event1 event1(uint256 count ) signature will be keccak('event1(uint256)')

• event-topic - 84e603adc6c5752ecafe165459551af7ba28bb2e6a2bfacc9ccb8f0ae12c76e6
• data - The value of results is 256

event2

• event2(address owner ) signature will be keccak('event2(address)')
  • event-topic - 2b6c5ac5969ae7377b33deb52d22bfaa3b344e22cafec1358b3cd6a136a58269
  • indexed-topic - contains the owner's address
  • data - Nothing is stored in the data since all fields in the event are indexed