New web3 release throws a TypeError, while 0.20.0 runs normally

[wrisx]

What could be the problem there:

ERROR
TypeError: ETHEREUM_CLIENT.eth.contract is not a function
...src/App.js:12
   9 | 
  10 | let peopleContractABI = [{"constant":true,"inputs":[],"name":"getPeople","outputs":[{"name":"","type":"bytes32[]"},{"name":"","type":"bytes32[]"},{"name":"","type":"uint256[]"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_firstName","type":"bytes32"},{"name":"_lastName","type":"bytes32"},{"name":"_age","type":"uint256"}],"name":"addPerson","outputs":[{"name":"success","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"","type":"uint256"}],"name":"people","outputs":[{"name":"firstName","type":"bytes32"},{"name":"lastName","type":"bytes32"},{"name":"age","type":"uint256"}],"payable":false,"type":"function"}];
  11 | let peopleContractAddress = '0xa2561ea34138ddddb939e575ef721530e5510d1b';
> 12 | let peopleContract = ETHEREUM_CLIENT.eth.contract(peopleContractABI).at(peopleContractAddress);

The code in the App.js file:

let ETHEREUM_CLIENT = new Web3(new Web3.providers.HttpProvider("http://localhost:8545"));

let peopleContractABI = [{"constant":true,"inputs":[],"name":"getPeople","outputs":[{"name":"","type":"bytes32[]"},{"name":"","type":"bytes32[]"},{"name":"","type":"uint256[]"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_firstName","type":"bytes32"},{"name":"_lastName","type":"bytes32"},{"name":"_age","type":"uint256"}],"name":"addPerson","outputs":[{"name":"success","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"","type":"uint256"}],"name":"people","outputs":[{"name":"firstName","type":"bytes32"},{"name":"lastName","type":"bytes32"},{"name":"age","type":"uint256"}],"payable":false,"type":"function"}];

let peopleContractAddress = '0xa2561ea34138ddddb939e575ef721530e5510d1b';

let peopleContract = ETHEREUM_CLIENT.eth.contract(peopleContractABI).at(peopleContractAddress);
...

Again, web3@0.20.0 runs fine, the latest one throws an error on the above code...

[frozeman]

Hm. Thats probably because 1.0 has a different API as it is a major release. Please read the docs here: http://web3js.readthedocs.io/en/1.0/

Its then let peopleContract = new ETHEREUM_CLIENT.eth.Contract(peopleContractABI, peopleContractAddress);