What does the balance mean in EtherScan?

Question

For example, IDEX has 40,767.582633880607462483 Ether. But I use BalanceAt function and only get 15.884 Ether. Why? Should I traversal all the tokens and query balanceOf("0x2a0c0DBEcC7E4D658f48E01e3fA353F44050c208")?

Answer 1

Are you sure you are caught up to the latest block on your Geth node?

Try running:

eth.syncing

Using Web3.js, I get the correct result for the amount of ether, using Infura/Metamask as my Ethereum provider:

https://shawntabrizi.com/ethbalance/

    window.addEventListener('load', function () {
        if (typeof web3 !== 'undefined') {
            console.log('Web3 Detected! ' + web3.currentProvider.constructor.name)
            window.web3 = new Web3(web3.currentProvider);
        } else {
            console.log('No Web3 Detected... using HTTP Provider')
            window.web3 = new Web3(new Web3.providers.HttpProvider("https://mainnet.infura.io/noapikey"));
        }
    })
    function getBalance() {
        var address, wei, balance
        address = document.getElementById("address").value
        try {
            web3.eth.getBalance(address, function (error, wei) {
                if (!error) {
                    var balance = web3.fromWei(wei, 'ether');
                    document.getElementById("output").innerHTML = balance + " ETH";
                }
            });
        } catch (err) {
            document.getElementById("output").innerHTML = err;
        }
    }

At the time of writing this post:

40857.081452818949926701 ETH