User Metamask Wallet Address Check
When using Metamask API to authenticate users for your application, it is very important to check that your wallet address belongs to the user. In this article, we will explore how to do it.
Understanding Metamk API
Before diving into the verification process, we will quickly review the basics of Metamk API:
- The “Accounts” parameter returns the list of available wallets.
- Getaccount
Parameter by address obtains special wallet information.
- Applying for the destination authenticate users and returns the access marker.
Wallet address ownership check
To verify that the user's wallet address belongs to them, you will need to obtain their account information using the "GetAccount" destination. When you have an account information, compare it to your expected address in your application database or storage system.
Here is an example of bringing an account by address:
JavaScript
Const Kontudata = Expect Account.Getaccount (Address);
Example of implementation
`JavaScript
Async function authenticerer () {
Const address = '0x1234567890abcdef'; // Replace with user wallet address
Try {
CONST reaction = wait for the breeze ('/API/LOGIN', {
Method: “Post”,
Headers: {
“Content Type”: “Application/JSON”
},
Body: JSON.Stringify ({
“Address”: Address,
'Secretkey': 'Your_secret_key_here' // replace with a secret key
})
});
Const data = gaidīt reakciju.json ();
IF (Data.Error) {
Throw a new error (Data.Error);
}
Const Kontudata = Expect Account.Getaccount (Address);
Console.log (Account Information on the address $ {address}:);
Console.log (AccountData);
} Catch (error) {
Console.Error (error);
}
}
In this exam, we submit a request to the final point “/API/Loginwith the user's wallet address and the secret key. The answer will contact accounting that oppose account information.
Wallet address ownership comparison
To verify that your wallet address belongs to the user, compare it to your application database or storage system. This can be done by retrieving the account and checking that the address provided corresponds to the expected.
Here is an example of implementation:
JavaScript
Async function authenticerer () {
Const address = '0x1234567890abcdef'; // Replace with user wallet address
Try {
CONST reaction = wait for the breeze ('/API/LOGIN', {
Method: “Post”,
Headers: {
“Satura tips”: “lietojumprogramma/JSON”
},
Body: JSON.Stringify ({
“Address”: Address,
'Secretkey': 'Your_secret_key_here' // replace with a secret key
})
});
Const Data = wait for the reaction.JON ();
IF (Data.Error) {
Throw a new error (Data.Error);
}
Const Kontudata = Expect Account.Getaccount (Address);
Console.log (Wallet address belongs to the user: $ {Contadata.address});
} Catch (error) {
Console.Error (error);
}
}
In this example, we submit a request to the final point “/API/Login` with the user’s wallet address and the secret key. The answer will contact accounting that oppose account information. We then compare the address provided with the expected database or storage system of your application.
Conclusion
Checking whether the user’s wallet address belongs to them along the Metamk API requirements, the basic understanding of the destination, the flow of the institution and the logic of comparison. By following this article and introducing the recommended code examples, you should be able to authorize users to your application using Metamk, and check that their wallet addresses are right for them.
