3

I am using truffle 5 and ganache-cli. I've imported increaseTime as

import increaseTime from './helper/increaseTime';

and the increaseTime.js file is like this

export default function increaseTime(addSeconds) {
  const id = Date.now();

  return new Promise((resolve, reject) => {
    web3.currentProvider.sendAsync({
      jsonrpc: '2.0',
      method: 'evm_increaseTime',
      params: [addSeconds],
      id,
    }, (err1) => {
      if (err1) return reject(err1);

      web3.currentProvider.sendAsync({
        jsonrpc: '2.0',
        method: 'evm_mine',
        id: id + 1,
      }, (err2, res) => (err2 ? reject(err2) : resolve(res)));
    });
  });
}

I am trying to use change the time to insert the follow code

await increaseTime(24 * 60 * 60);   

But I've got error message,

TypeError: web3.currentProvider.sendAsync is not a function

Am I doing something wrong?

1 Answer 1

4

Change web3.currentProvider.sendAsync to web3.currentProvider.send

With truffle 5 you are using web3 1.0. However, the sendAsync is the legacy function of 0.20.

5
  • 1
    BTW, web3.currentProvider.send also works in Truffle 4.x (web3 0.x, as you mentioned), so your solution is compatible with both versions. Feb 21, 2019 at 13:05
  • changing "sendAsync" to "send" gives me Uncaught TypeError: callback is not a function
    – Jim
    Oct 2, 2021 at 0:07
  • @Jim i got the same error, have you find any solution?
    – gabkov
    Apr 21, 2022 at 7:22
  • Maybe try to change web3.currentProvider.send.bind(web3.currentProvider)? Jul 26, 2022 at 9:03
  • @gabkov To fix the "callback is not a function" you need to pass a second parameter to the "send" function because the newer version of it takes a function as its second parameter. Example: <code> web3.currentProvider.send({ jsonrpc: "2.0", method: "evm_increaseTime", params: [864000], id: 0 },(err1) => { if(err1){ return reject(err1); } });</code> Aug 10, 2022 at 6:21

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