بلاگ
Metamask: Metamask doesn’t switch to local node, no error message
Metamask Issue with Local Node Switching
I’m seeing a common issue when users try to switch their metamask instance from a remote network to a local hardhat node using wagmi.sh. The dialog that appears after conirming the switch often does not display any error messages, leading to frustration.
The Issue:
When you use usewitchnetwork
with wagmi.sh and metamask on a remote network, the dialog prompts for confirmation to switch from the remote network to the local hardhat node. However, it’s not displaying any error message or indicating that the switch was successful. This can lead users to believe that the issue is resolved without actually being aware of what was wrong.
The Solution:
To resolve this issue, you need to add a check for the success of the Switch Operation and Display an appropriate error message if it fails. HERE’S A SAMPLE CODE SNIPPET TO GET YOU STARTED:
`JavaScript
Const usingwitchnetwork = async ({type, network}) => {
try {
Await usingwitchnetwork ({type, network});
} catch (error) {
console.error ('error switching to local hardhat node:', error);
Alert (Error Switching to Local Hardhat Node. Please check your connection and try again.
}
};
In this code snippet, we’re using try
-catchblock to catch any errors that might occur during the switch operation. If an error occurs, we log it to the console and display a user-friendly error message with an alert box.
Alternative Solution:
You can also use wagmi.sh's built-in support for network switching by using theusewitchnetworkfunction from your hardhat configuration file (
hardhat.config.js). HERE'S AN EXAMPLE:
JavaScript
Const {ETHERS} = Require ('wagmi');
module.exports = {
// ...
async configure ({env}) {
Const network = env.network;
try {
Const Metamaskinstance = Await ethers.Getsigner ();
if (network === 'Metamask') {
Await usingwitchnetwork ({
Type: 'Switch',
network,
});
}
} catch (error) {
console.error ('error switching to local hardhat node:', error);
Alert (Error Switching to Local Hardhat Node. Please check your connection and try again.
}
},
};
In this exam, we’re using the ethers
library to get a signer instance based on the current network. We then use the usewitchnetwork
function to switch to the local hardhat node.
Conclusion:
By Adding Error Checking and Displaying User-Friendly Error Messages, you can resolve the issue of metamask not switching to your local hardhat node after using usewitchnetwork
. This should improved the overall user experience and help prevent frustration.