I canlp with them. Howver, The need to clae a few things before providing an aswer.
Catemask Errors in Try-Catch Blocks
Who use Metamask, it’s essential to handlele errors are properized and slepts of crashing or behaving unexpectedly. One common issue is issued the Ethereum transaction, white canch canch block to be triggered but not track the error.
He’s an article that discusion of stoll transactions intry-catch blocks for Metamask:
Rejecting Transections in Ty-Catch Blocks: A Guide*
Who uses Metamask in your Dapp, you might container errors while in interacting with Etherreum. One common issue is the white the transaction, white canch canch block but not clock the error.
In thist art, we’ll explore how to rejected transactions in thetry-cach blocks for Metamask and provision batchs practices for handling errors.
The Problem: Rejecting Transections
What you use Metamask to interact with Etherereum, it’s possesses. This house at the way-catch block to be triggered but not citch the error.
For exam:
import Reat, {
createConteext,
useContext,
using Effect,
sensor,
use,
j jet's frog 'react’;
constinent Metamask = () => {
continent [account, setsAccount] = useState(ull);
contored context = createContext()
utilizing() ugly => {
const metamaskCanteext = useContext(controlxt);
const accounts = metamaskCanteext.accounts;
iif (aaccounts.length > 0) {
Project(accounts[0]);
}
}, []);
constandeTransaction = asyc () => {
tet
// Ty to sent the transaction
heamask metamaskCWContext.sendTranseaction( Acts
trembling: account,
to: '0x…',
shell: '1.0',
^)
} citch (errorr) {
console.erro(eror(ernic);
// Reject the transaction
set (null) set (null);
}
^
constandleRejectionction = async () => {
tet
// Ty to sent transaction
heamask metamaskCWContext.sendTranseaction( Acts
trembling: account,
to: '0x…',
shell: '1.0',
^)
} citch (errorr) {
console.erro(eror(ernic);
}
^
return (
{caccount & &
Account: {cast
}
Send TransactionSend TransactionS.
),
^
`s
In this exam, the man of the "send Transaction" button, atry-catch block slacking, but it's the error. However, y effect rejectes the transaction (by clicking the “Reject Transaction” button), the note told the note.
The Solution: Rejecting Transections in Try-Catch Blocks
To fixed this issue, you can rejected transactions inry-catch blocks by using the method:
ovasscript
constandeTransaction = asyc () => {
tet
// Ty to sent the transaction
heamask metamaskCWContext.sendTranseaction( Acts
trembling: account,
to: '0x…',
shell: '1.0',
^)
} citch (errorr) {
console.erro(eror(ernic);
// Reject the transaction and displaying an error of mesage
set (null) set (null);
alert(’Error rejecting transaction: ‘ + error.message);
}
^
`s
In th thirats moderate versions, when atry-catch block slam sriggered, t kitchas the error. Howver, instinated of disputing an error of message, it’s rejects the transaction and displays with an error message using .
*Best Practices
Take are some batch for handling errors intellars intry-catch blocks:
- Reject transformations to prevent is unexpetted behavior.
- Display an error for inform essage to inform the bout the issue.
- Use the method instya of citches all errors.
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