Funktionen aus dem Vertrag können nicht mit web3.js aufgerufen werden

Ich habe also eine Dapp und möchte eine Funktion aus einem auf Rinkeby bereitgestellten Vertrag aufrufen. Ich verwende Metamask, um mit der Blockchain zu interagieren.

Wenn ich die Funktionen in der Konsole verwende, funktionieren sie, aber wenn ich aus dem JS-Code aufrufen möchte, funktionieren sie nicht mehr. Mein Dapp funktioniert auf Port 3030.

Hier ist der JS-Code. web3 initialisieren:

import Web3 from 'web3';

export let web3;

if (typeof web3 !== 'undefined') {
  web3 = new Web3(web3.currentProvider);
} else {
  // set the provider you want from Web3.providers
  web3 = new Web3(new Web3.providers.HttpProvider('http://localhost:3030'));
}

Hier ist die .js-Datei mit verschiedenen Funktionalitäten:

import web3 from '../ethereum/web3.js';

var SapienTokenAddress = "0x9857D34e0a3Ea34518E6BC54eA32cfF544BA54b7"

var SapienTokenABI = [{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_stake","type":"address"}],"name":"enableTransferToContract","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_controller","type":"address"}],"name":"changeController","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"disableTransferToContract","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_amount","type":"uint256"}],"name":"increaseTotal","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_owned","type":"address"}],"name":"changeOwned","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_amount","type":"uint256"}],"name":"addToBalance","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[{"name":"_owned","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Transfer","type":"event"}]

var SapienTokenBytecode = "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"

export function getCurrentPublicAddress() {

  web3.eth.getAccounts(function(error, result){
      if(!error)
        return result[0];
      else
        return error;
  });

}

export function getCurrentSPN() {

  var spnCoinContract = web3.eth.contract(SapienTokenABI).at(SapienTokenAddress);

  var notConnected = notWeb3Connected();

  if (!notConnected) {

  return spnCoinContract.balanceOf.call(String(getCurrentPublicAddress()), function(error, result){

    if (!error)
      console.log(result);

    else {
        console.log(error);
      }

    });

  }

}

export function notWeb3Connected() {

// Check the connection
if(!web3.isConnected()) {

  console.error("Not connected");

  return true;

}

return false;

}

Und in eine andere Datei importiere ich die Funktionen und logge ihre Ergebnisse in die Konsole ein. Zum Beispiel mache ich das:

import { getCurrentPublicAddress, getCurrentSPN } from '/imports/lib/pudding/manageSPN.js';

Und das:

console.log(getCurrentAddress());
console.log(getCurrentSPN());

Wenn ich die Funktionen aufrufe, werfen sie Fehler:

PS: Ich verwende meteor -p 3030, um meine App zu initialisieren. PPS: Mit getCurrentPublicAddress bekomme ich den öffentlichen Schlüssel von Metamask. Mit der anderen Funktion erhalte ich die Menge an Token, die ich für dieses spezielle Konto geprägt habe.