Not possible to call methods on existing contract

[russanto]

Description

It is not possible to call function on already deployed contracts.

Expected behavior

Creating a contract instance with jsonInterface and address I should be able to call the function on that contract

Actual behavior

Contract instance isn't binded to the contract at that address. Instead if I deploy the contract in the same execution just before calling methods, it works perfectly.

Steps to reproduce the behavior

const Web3 = require('web3');
const web3 = new Web3("ws://127.0.0.1:8546");
var simpleContract = new web3.eth.Contract(jsonInterface, address);
simpleContract.methods.myFunction(params).call().then( do something );

Error Logs

Error: Invalid bytes string given: 0x
at AbiCoder.decodeParameters (./node_modules/web3-eth-abi/dist/web3-eth-abi.cjs.js:64:15)
at AbiCoder.decodeParameter (.node_modules/web3-eth-abi/dist/web3-eth-abi.cjs.js:55:19)
at CallContractMethod.afterExecution (./node_modules/web3-eth-contract/dist/web3-eth-contract.cjs.js:743:28)
at CallContractMethod._callee$ (./node_modules/web3-core-method/dist/web3-core-method.cjs.js:354:35)
at tryCatch (./node_modules/regenerator-runtime/runtime.js:62:40)
at Generator.invoke [as _invoke] (./node_modules/regenerator-runtime/runtime.js:288:22)
at Generator.prototype.(anonymous function) [as next] (./node_modules/regenerator-runtime/runtime.js:114:21)
at asyncGeneratorStep (./node_modules/@babel/runtime/helpers/asyncToGenerator.js:3:24)
at _next (./node_modules/@babel/runtime/helpers/asyncToGenerator.js:25:9)
at
at process._tickCallback (internal/process/next_tick.js:188:7)

Versions

• web3.js: 1.0.0-beta.48
• nodejs: v8.9.4
• ethereum node: geth 1.8.22

[nivida]

Could you add the ABI and the bytecode of this contract for testing it?

[russanto]

ABI
[{"constant":true,"inputs":[{"name":"acc_id","type":"string"}],"name":"query","outputs":[{"name":"amount","type":"int256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"acc_id","type":"string"},{"name":"amount","type":"int256"}],"name":"open","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}]

Bytecode
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

EDIT: May be usefull

pragma solidity >=0.4.22 <0.6.0;

contract simple {
    mapping(string => int) private accounts;

    function open(string memory acc_id, int amount) public {
        accounts[acc_id] = amount;
    }

    function query(string memory acc_id) public view returns (int amount) {
        amount = accounts[acc_id];
    }
}