I can lead you through the process of solving the problem of returning to a universal router for Ethereum (UR) with the sale of tokens in the basic network.
Entry
The Universal Router is a decentralized bridge that allows you to use external chains such as Smart Chain Binance or optimism, introduce the sale of tokens on the denog. However, this can lead to repetition of transactions if the contract in the external chain is not properly configured or if the relay chain contract has problems.
Return problem
When the sale of the token uses a universal router and triggers withdrawal from the basic network to the target chain, this may cause a return error. This is because::
- The function of withdrawal in the basic network agreement expects a specific signature, but the external chain agreement of the external chain is another signature.
- The relay chain agreement has a problem that prevents the transaction from confirming.
solving the problem of return
To solve this problem, you need to modify contracts based on Ethereum and properly update the configuration of the universal router. Here are a few steps to track:
1. Update the network network agreement
In the network agreement, add the “Remember” function, which accepts a specific signature:
`Javascript
Withdrawal of the function (amount) {
// ...
Return {date: '0x ...'}; // replace the real signature
}
Then update the code to cause this function and support all errors:
`Javascript
const {bignumber} = requires ("bignumber.js");
Const Routerbi = ...;
Const BasenetWorkContract = new contract (BaseNenetWorkaddress, Routerbi, "BaseNetworkContract");
Async RevtTokens function () {
to try {
const
// ...
} catch (error) {
console.error (error);
// Error and re -support
}
}
2. Update the universal router configuration
In the universal router configuration, update the “Relachain” settings to indicate the appropriate contract in the target chain:
`Javascript
Const Universalrouter = New Universalouter ({{
BaseNetWorkaddress: "0x ...", // basic network address
Relachainaddress: "0x ...", //
Relachaincontract: "Relachaincontract", // ABI relay
});
Remember to replace addresses and contracts for actual values.
3. Update the token sales contract
In the tokens sales agreement, update the “withdrawal” function to use the correct signature:
`Javascript
Async RevtTokens function () {
to try {
const
// ...
} catch (error) {
console.error (error);
// Error and re -support
}
}
4. Update the relay chain contract
If you use the relay chain agreement, update its “withdrawal” function to use the correct signature:
`Javascript
Async RevtTokens function () {
to try {
const
// ...
} catch (error) {
console.error (error);
// Error and re -support
}
}
5. Test the code
After completing these updates, test the code thoroughly to make sure that the problem will be solved.
Application
Repairing the problem of returning to a universal router for Ethereum can be difficult, but by properly updating contracts and configuration, you should be able to solve this problem and successfully launch the sale of tokens in the basic network. Remember to thoroughly test the code after making these updates to make sure that everything works as expected.