Event-based indexing tools such as thegraph are unable to retrieve the balance of tokens from IBCs

[alberthuang24]

Steps to reproduce:

1. Start the chain
2. Send Cosmos Transaction to simulate IBC transaction mint erc20 to 0x4fc6f808c465030ebeb361140df77f543bcd9b99
3. Index blocks using thegraph, substreams or blackout

Expected behavior: [What you expected to happen]

The actual events sent by evm can be indexed by tools such as thegraph

Actual behavior: [What actually happened]

Cannot query any user balance or events

Additional info: [Include gist of relevant config, logs, etc.]

This is because the current queries eth_blocks, eth_getBlockByHash, eth_transactionByHash, eth_transactionReceipt only support the query MsgEthereumTx.

Can we abstract it to an interface.

This way, partially executed evm cosmos transactions can be converted to ethereum transactions

For example:

type EthereumTxCompatible interface {
    // evm.MsgEthereumTx
    AsTransaction() *ethtypes.Transaction
    TxHash() common.Hash
    TxData() (TxData, error)
    GetGas() uint64
    GetSender(chainID *big.Int) (common.Address, error)

    // Cosmos sdk.Msg
    ValidateBasic() error
    GetSigners() []sdk.AccAddress
}

https://github.com/evmos/ethermint/blob/main/rpc/backend/blocks.go#L273

[github-actions[bot]]

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