All the below depend on the correct RPC response. An error handler should be written to correctly propagate the error type from the RPC node. This is a bit difficult for sidechains e.g. Celo which implement custom response error messages.
[ ] RPC error handler with core error return types
Gas bump
Resign a transaction and bump the gas price by 15%. On the otx table, the old transaction should be invalidated and a new one created in a single tx. Gas limit issues can also be included here but ideally, we set a generous gas limit that on the gas oracle itself.
[ ] Invalidated flag on otx table
[ ] Resigner
Low nonce issues
Ideally this kind of error should be near-impossible to get if the signer implementation is correct as we maintain the nonce sequence offline. However, in the rare event that it does occur, a special noop tx which attempt a random low gas sign should be attempted to close the gap.
[ ] Special noop tx tyoe signer
[ ] Periodic health check to chech if a tx is mined/reverted. If not, we may have any of the issues described here.
Out of balance
Ideally, we never face this issue. A lock should be applied on the account to prevent further tx sign requests. There should always be a pre-check on the dispatcher before it is attempted.
All the below depend on the correct RPC response. An error handler should be written to correctly propagate the error type from the RPC node. This is a bit difficult for sidechains e.g. Celo which implement custom response error messages.
coreerror return typesGas bump
Resign a transaction and bump the gas price by 15%. On the otx table, the old transaction should be invalidated and a new one created in a single tx. Gas limit issues can also be included here but ideally, we set a generous gas limit that on the gas oracle itself.
Low nonce issues
Ideally this kind of error should be near-impossible to get if the signer implementation is correct as we maintain the nonce sequence offline. However, in the rare event that it does occur, a special noop tx which attempt a random low gas sign should be attempted to close the gap.
Out of balance
Ideally, we never face this issue. A lock should be applied on the account to prevent further tx sign requests. There should always be a pre-check on the dispatcher before it is attempted.