Check whether code is present at a given address

[azf20]

Do you want to request a feature or report a bug? Feature

What is the current behavior? Graph Node is not able to distinguish whether an Ethereum address is a contract, or a EOA

What is the desired behavior? Add a means to check whether code is present at a given address (via eth_getCode, docs here)

If code is present, it is a smart contract

Considerations: this will need to check for code at a particular block, as contracts can be destroyed. eth_getCode seems to support block number, not block hash which introduces determinism problems.

Discussed here

[silasdavis]

not block hash which introduces determinism problems

I don't follow. Why would picking a block number not give you a deterministic value for the code at a particular height?

[azf20]

If there is a re-org, during indexing, the state for the same block height might change depending on which branch the subgraph is indexing

[noyyyy]

Any update about this issue? Or can I use another function to check where an address is an EOA?