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I can guide you through the process of solving the recovery problem in the universal router for Ethereum (UR) with a token sale on the basic network.
Introduction
The universal router is a decentralized bridge that allows you to use external chains, such as the intelligent binance chain or optimism, to launch token sales on Mainnet. However, this can lead to transaction returns if the contract on the external chain is not correctly configured or if the relay chain contract has problems.
The recovery problem
When a token sale uses the universal router and triggers a withdrawal from the basic network to the destination chain, it can cause a restoration error. This occurs because:
- The sampling function in the basic network contract provides for a specific signature, but the chain contract of the external chain provides a different signature.
- The relay chain contract has a problem that prevents confirmation of the transaction.
Resolution of the recovery problem
To solve this problem, you will have to change your contracts based on Ethereum and consequently update the configuration of the universal router. Here are some steps to follow:
1. Update the basic network contract
In the basic network contract, add a function retreat that accepts a specific signature:
Javascript
FUNCTION SHAPPING (Amount) {
// …
Return {Data: ‘0x …’}; // replace with the actual signature
}
`
So update the code to call this function and manage any errors:
Javascript
Const {Bignumber} = requirement (‘Bignumber.js’);
Const Routerabi = …;
Const BASNetworkContratTCT = new contract (BASENETHODRESADDress, Routerabi, « BaseNetworkContract »);
Asynchric function sampling () {
Attempt {
Const amount = expected BASENETHOCCONCTTRACT.WithRaw (amount);
// …
} Catch (error) {
console.error (error);
// manage the error and try again
}
}
`
2. Update the configuration of the universal router
In the configuration of the universal router, update theRelayschain » settings to indicate the correct contract on the destination chain:
`Javascript
Const Universalrouuter = New Universalrouuter ({
BASENETHODRADDress: ‘0x …’, // Basic network address
Relaysachaddress: ‘0x …’, // address of the target chain
Relays Meet: « Relarycha Meeting », // chain contract of Relè ABI
});
`
Make sure to replace addresses and contracts with effective values.
3. Update the token sales contract
In the TOKEN sales contract, update thewithdrawal function to use the correct signature:
`Javascript
asynchric function sampling () {
Attempt {
Const amount = expected BASENETHOCCONCTTRACT.WithRaw (amount);
// …
} Catch (error) {
console.error (error);
// manage the error and try again
}
}
`
4. Update the relay chain contract
If you are using a relay chain contract, update its functionwithdrawal to use the correct signature:
`Javascript
asynchric function sampling () {
Attempt {
Const amount = expected BASENETHOCCONCTTRACT.WithRaw (amount);
// …
} Catch (error) {
console.error (error);
// manage the error and try again
}
}
``
5. Code test
After making these updates, carefully test the code to make sure that the recovery problem is solved.
Conclusion
The resolution of the recovery problem in the universal router for Ethereum can be demanding, but by updating the contracts and configuration accordingly, you should be able to solve this problem and successfully start a token sale on the basic network. Remember to test your code thoroughly after making these updates to make sure everything works as expected.