Metamk Problem: You can’t load the Ethereum object of Metamsk React
When working with Metask in a react application, developers are often encountered with problems loading the Ethereum object in the wallet. In this article, we will deepen the problem and provide a solution.
Problem: Loading the Ethereum object of Metamans React
The code fragment it provided is an ordinary example of how to manage the account account in Metamsk. However, when you try to load an Ethereum object from the wallet using ethereum.request ({method: 'eth_accals'), find the following error:
`
You can’t charge the Ethereum object
`
Why this error occurs
The error occurs because ethhereum.request ('eth_accals') is not a valid method to upload Ethereum objects into the metamark reaction. The correct method to recover an Ethereum address of the wallet is ethhereum.theremacounts () or ethereum. However, these methods return a variety of Ethereum accounts, which does not contain a specific object.
Solution: Usingethereum.etheremacount ()
To upload a specific Ethereum account, you can useethereum.etheremacounts ():
Typlat
Ethereum.request ({method: 'eth_accals'})
.Then (accounts => {
Constance = accounts [0];
// use the specific account to get your private key or other relevant data
})
.Catch (err: any) => {
Console.error (ERR); // Manage any error that may occur when loading the Ethereum object
});
Add account events to account events
To manage the changes in the accounts, you can add an event listener to the “Ethereum” object:
`Typlat
Ethereum.on ('accuschanged', (newcounts) => {
Const specified = newcounts [0];
// use the specific account to get your private key or other relevant data
});
Full Example
Here is a complete example that demonstrates how to charge an Ethereum by Metamsk React and manages the changes of accounts:
`Typlat
Import * as MetamaKreact of "Metask-React";
Interface accounts {
[Key: chain]: anyone;
}
CONC CUTSCHANGED = async (newcounts) => {
Const specified = newcounts [0];
// use the specific account to get your private key or other relevant data
};
Ethereum.on ("contschanged", account accounts);
Ethereum.request ({method: 'eth_accals'})
.Then ((accounts) => {
console.log (accounts);
})
.Catch (err: any) => {
Console.error (ERR); // Manage any error that may occur when loading the Ethereum object
});
In this example, we define an interface for the account data and create a function of “accuschanged” to manage the changes of accounts. Then we attach this function as listener of events to the object “Ethereum” using the ‘on (‘ Accoutscharged ‘) `
Conclusion
Understanding the problem and providing a solution, we facilitated developers to load the metamark react ethereum objects and to manage the account changes. Remember to replace the code fragment with your own implementation and updateethereum.on (‘contschanged’, (newacounts) => {…});` line to adapt to its specific use case.