Web3.js integration

Solidity Programming
#1

Belwo is my code to execute a simple Jsp pgm having web3.js

let web3 = require('web3');
const tr = new web3(web3.givenProvider || "http://localhost:8545");
discuss();
async function discuss()
{
   const latest = await tr.eth.getBlock(1);
    console.log(latest);
   
    
}

Before doing this , I have run command to install web3 which is npm i web3 . However I am not getting any result. Instead the error shown is :-

image
image1148×192 8.06 KB

#2

Hi @Brijesh

The error says it cannot access http://localhost:8545 server port.
Do you have an active ethereum node running at http://localhost:8545 port ?