3. Edge Cases in MetaMask Integration

Integration Image

3.1. Handling Concurrent Transactions

Ensure your dApp is capable of managing scenarios where multiple transactions are initiated simultaneously.

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const nonce = await ethereum.request({ method: 'eth_getTransactionCount', params: [account, 'pending'] });

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3.2. Dealing with Low Gas Scenarios

Implement mechanisms to detect and prompt users when gas fees are too low for successful transaction processing.

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const gasPrice = await ethereum.request({ method: 'eth_gasPrice' });
if (parseInt(gasPrice, 16) < 5000000000) {
    console.log('Gas price too low. Please adjust');
}

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3.3. Non-Standard Networks and RPC Endpoints

Handle situations where users might be on custom networks or using non-standard RPC endpoints.

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const supportedNetworks = ['1', '3', '4', '42']; // Mainnet, Ropsten, Rinkeby, Kovanif (!supportedNetworks.includes(ethereum.networkVersion)) {
    console.log('Unsupported network. Please switch');
}