Errors

Always wrap provider requests in try / catch. Pali uses standard JSON-RPC and EIP-1193 style errors where possible, plus wallet-specific errors for unsupported networks, hardware wallet restrictions, and passkey states.

try {
  await window.ethereum.request({
    method: 'eth_sendTransaction',
    params: [tx],
  });
} catch (error) {
  switch (error.code) {
    case 4001:
      console.log('User rejected the request.');
      break;
    case 4100:
      console.log('The dapp is not authorized.');
      break;
    case 4200:
      console.log('The method is unsupported.');
      break;
    default:
      console.error(error);
  }
}

Common categories

Code	Meaning
4001	User rejected the request.
4100	Unauthorized account or method.
4101	Method is only available for a different chain family.
4200	Unsupported method.
4900	Provider disconnected.
4901	Provider disconnected from the requested chain.
5710	The EIP-5792 bundle's chain has no RPC configured in the wallet (wallet_getCallsStatus / wallet_showCallsStatus).
5720	Duplicate dapp-provided EIP-5792 bundle id in wallet_sendCalls.
5730	Unknown EIP-5792 bundle id in wallet_getCallsStatus / wallet_showCallsStatus.

See Error codes for the longer reference.