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Title: How to avoid the “Wallet address not found” error with Metamask message

Introduction:

Metamask, a popular cryptocurrency wallet platform, allows users to manage their wallets and interact with various blockchain networks. However, when the user is not logged in, Metamask may not prompt for the wallet address or display an error message. In this article, we will explore why Metamask does not display any message if the user is not logged in and provide a solution.

Why does Metamask not display messages to users who are not logged in?

When you try to access Metamask without logging in, you may think that your wallet address is empty or invalid. However, this can lead to incorrect assumptions about whether the user has a wallet address. If no wallet address is found, Metamask will display the following message:

“No wallet address found”

This error occurs because Metamask checks for a valid wallet address in the following steps:

• Checks if the user is logged in

• Retrieves the user’s wallet address from their wallet file (if available)

• If no address is found, “No wallet address found” is displayed

• If an existing address is found but not logged in, it may also display this message

Why does Metamask not display any message when logged in?

When you log in to your Metamask account, the wallet file (if available) and other information are retrieved from their respective storage locations. In this case, no messages or errors are displayed because:

• The wallet address is present in the wallet file

• The user’s wallet ID is linked to their logged in account

Solution: Request a Metamask popup if the user is not logged in

To solve this problem and avoid “Wallet Address Not Found” errors when the user is not logged in, you can add a simple message to display the warning message or an error message before trying to access the wallet. Here are two possible solutions:

Solution 1: Use JavaScript

function logInWallet() {
// Check if the wallet address is present in the wallet file
var walletAddress = getWalletAddress(); // Replace with your function
if (walletAddress === null) {
console.log("No Wallet Address Found");
// Alternatively, ask the user to create a new wallet or register with Metamask
window.location.href = "
} else {
// Proceed to log in to the account
logInAccount(walletAddress);
}
}
// Define a function to get the wallet address from the wallet file
function getWalletAddress() {
// Return the wallet address from your wallet file or storage location
}

Solution 2: Using API Endpoints

function logInWallet() {
// Use Metamask API endpoints to check if the user is logged in and retrieve the wallet address
var response = fetch("
response.then((response) => {
if (response.ok) {
var walletAddress = getWalletAddressFromResponse(response);
// Check if user has a valid wallet address before login
if (walletAddress !== null) {
logInAccount(walletAddress);
} else {
console.log("Wallet address not found");
window.location.href = "
}
} else {
console.error("Error while verifying Metamask API:", response.statusText);
}
});
}
// Define a function to get the wallet address from the API response
function getWalletAddressFromResponse(response) {
// Return the wallet address from the response data or storage location
}

In both solutions, you can modify the logInWallet() function to check if the user is logged in and retrieve their wallet address before trying to access it. If a valid wallet address is not found, an error message will be displayed.