How do I keep the fork mainnet use the latest block using web3?
I need to fork mainnet to latest block before I send the transaction
What originally i do is just run the ganache fork command which only have the state the block the time i ran it and use.
// at some conditions
const localWeb3 = new Web3( // connect to forked net
new Web3.providers.WebsocketProvider('ws://localhost:8546') // port of forked mainnet ganache
)
// do the transactionWhat I tried
// at some conditions
const localWeb3 = new Web3( // connect to forked net
ganache.provider( {fork: "myalchemyprovider"} )
// do the transaction
or with
ganache.provider( {fork: web3.currentProvider} ) // no good since i dont have archive mode of eth nodewhat is the correct way to do this?
Candidate and set the percent. You could then import the Truffle Assert library to assert that getPercent returns the value that you set it at.
truffle compile?
contracts folder unless it sees that the generated artifacts are older than the last modification of your source files.
truffle test because they will be out of date every time
Is there a recomendation for how to handle contracts with multiple solc verisons (e.g . I have a copy of the dai contract that is on 0.5.11, but my app is on 6+.
Is there any practical way to handle this?
Deploying the token once in each network sounds reasonable until you start thinking how cumbersome to manage a local blockchain like ganache
I have installed latest ganache-cli(6.12.2) and by using remix, I have deployed "King of the Ether" contract (here: https://docs.soliditylang.org/en/v0.8.0/common-patterns.html)
When I deploy the contract and call "becomeRichest" function, I get "Gas estimation failed" error
I have tried with Javascript VM, Injected Web3(Metamask > localhost hooked to ganache) and Web3 provider being ganache-cli itself
I could give you an example of how to test one of your contract's functions maybe? Would that help?
Having an example would help me a lot! Here's an example of what I did for the moment https://imgur.com/a/knizFKb
getPercent then your test would roughly look something like function testGetPercent () public {
candidate.setPercent(40);
uint result = candidate.getPercent();
Assert.equal(result, 40, "The percent should be set to 40.");
}I am having hard time to run make the fork work when i use ganache provider
I am trying to run a method and the return is stuck on promise pending, if i have to do await it still stuck waiting for return. I have no idea why this happen, i log the value of localWeb3 and it returns an object without a problem
There is the snippet:
txChecker = async () => {
const localWeb3 = new Web3(
ganache.provider({ fork: "wss://eth-mainnet.ws.alchemyapi.io/v2/apikey" })
)
console.log(localWeb3) // image attached
console.log("latest_block forked 1: ", localWeb3.eth.getBlockNumber()) // promise state pending, value undefined
console.log("latest_block forked 2: ", await localWeb3.eth.getBlockNumber()) // black
}Anyone help me please.
Hi - I am trying to simulate a transaction in a forked web3 environment via ganache-cli, I can do everything fine, except the "confirmation" event is never triggered, I can receive errors & receipts. How can I get the confirmation event as specified in the docs? ```
async function dryRun(_transaction){
var localWeb3 = new Web3(ganacheCLI.provider({fork: productionServer, port:7535, unlocked_accounts: [_transaction.from]}))
var sentTx = localWeb3.eth.sendTransaction(_transaction)
.once('receipt', function(receipt){
console.log("Msg Receipt: ", _transaction.hash);
})
.on('confirmation', function(confirmationNumber, receipt){
console.log("Confirm: ", _transaction.hash, confirmationNumber, receipt);
})
.on('error', function(error){
console.log("Error", _transaction.hash, error.message);
})}
```
