Unexpected results —am I missing something from the setup?

[medied]

@danfinlay am pretty happy to have come across you human-standard-token-abi package as I was having issues importing abi manually. Those issues were resolved with your package but it seems I'm missing something from the set up still as I'm not getting correct values, allow me to expand:

• working locally, truffle develop with port 9545
• got Metamask displaying tokens fine

• code I'm testing is basically following your README, am working with a Meteor app

import { Meteor } from 'meteor/meteor';
import Web3 from 'web3';
import abi from 'human-standard-token-abi';

(...)

/**
* @summary gets erc20 token balance from public address
* @param {string} WIP
* @return {object} WIP
*/
const _getERC20Balance = () => {

  let balance;
  const contractAddress = token.coin[1].contractAddress; 
  const addrs = web3.eth.accounts[0];

  const contract = web3.eth.contract(abi).at(contractAddress);

  // Get the token name
  contract.name.call(function(err, name) {
    if (err) { console.log(err) }
    if (name) { console.log('The token name is: ' + name) }
  });

  // Get the token symbol
  contract.symbol.call({from: addrs}, function(err, symbol) {
    //ABI expects string here,
    if(err) { console.log(err) }
    console.log('Token symbol: ' + symbol)
  })

  // tokenSupply
  contract.totalSupply.call({from: addrs}, function(err, totalSupply) {
    console.log(totalSupply)
  })

  // balanceOf
  contract.balanceOf.call(addrs, (err, bal) => {
    if (err) { console.error(err) }
    console.log('balance is ' + bal.toNumber())
  });
};

(...)

export const getERC20Balance = _getERC20Balance;

• what I'm getting back from const contract = web3.eth.contract(abi).at(contractAddress); seems to be fine

• however, I'm not getting expected values on callbacks so evidently I'm missing something. totalSupply() and balanceOf() return empty bigNumbers/0

• and getting the sting error on symbol and name

• Constructing abi manually I was able to successfully read balanceOf in the Chrome console though

Hope this is making sense. Should I take care of working in client/server side in Meteor? Any ideas on what I could be missing?

[medied]

Forgot to state am using web3 v0.20.7

[conorwatt1]

Take a look at:

ethjs -> https://github.com/ethjs

bignumberJS -> https://github.com/MikeMcl/bignumber.js/

NOTE: I found that with web3 if I needed to make a call for token symbol, token balance, total supply etc I would have to set something like setTimeout to wait for a response (sometimes its a little slow)

On Thu, Oct 18, 2018 at 10:05 AM Eduardo Medina notifications@github.com wrote:

Forgot to state am using web3 v0.20.7

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[medied]

thanks @conorwatt1, ended up figuring out the issue was in web3 provider setup