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Metamask: Alert after spending approval

Published by on February 8th, 2025.


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Metamask Alarm: Simple Example

As a developer who builds decentralized applications (DAPP) on Ethereum Blockchain, you can meet different challenges in integrating Metamask. In this article, we will look at a simple example of the use of Metamask warnings in DAPP.

Why use Metamask Warnings?

Metamask warnings offer a convenient way to inform users about important events or actions in your app. These notifications can help improve the consumer experience and increase the commitment.

Code:

`Javascript

Asychric function main () {

// Initialization of Metamask

CONST Web3 = Expect Window.Thereum.connect ();

// Add events to the Warning Notice Notice

web3.on (‘connect’, async () => {

Window.alert (Successfully connected");

Console.log ("The user is connected");

// treat other events such as errors or transactions

experience {

CONST TXID = Waiting Web3.eth.endransction ({{{{{{{{{{{{

By: '0xyouraccountaddress',

to: '0xRecipient City Ressing',

Value: “0.01 ether”,

});

Console.log (ID of transaction: $ {txid});

} Catch (error) {

Window.alert ('error:', error.message);

Console.error (error);

}

});

}

In this example: We:

V.

Important Comments:

If you follow this simple fragment of codes, you can easily integrate the Metamask warnings into your DAPP and improve your user experience.

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