Blockscout: Contract address not showing code tab

[acravenho]

This address 0x1c494fa496f1cfd918b5ff190835af3aaf60987e is a contract but it is not showing the code tab.

Here is the same address on sokol explorer: https://sokol.poaexplorer.com/address/search/0x1c494fa496f1cfd918b5ff190835af3aaf60987e

[gfreh]

@amandasposito and @acravenho I've tested it on localhost and everything seems to be right! I've moved it to Ready for acceptance.

[acravenho]

I'll test soon and provide feedback here soon after.

[acravenho]

LGTM!

[melnikaite]

I'm afraid the issue should be reopened, it doesn't work in my environment

Environment

• Operating System: OS X 10.14
• Docker 18
• Ganache CLI v6.2.5 (ganache-core: 2.3.3)

Steps to reproduce

• ganache-cli -v -i 4447 -l='0x7A1200' -g='0x01'
• deploy any contract
• git clone [email protected]:poanetwork/blockscout.git
• cd blockscout/docker
• COIN=ETH ETHEREUM_JSONRPC_VARIANT=ganache ETHEREUM_JSONRPC_HTTP_URL=http://host.docker.internal:8545 ETHEREUM_JSONRPC_WEB_SOCKET_URL=ws://host.docker.internal:8545 make start
• open contract address in blockscout ui

Expected behaviour

Code tab is visible

Actual behaviour

Code tab is not visible

[igorbarinov]

we have the same problem for POA Bridge multisig on Mainnet
https://blockscout.com/eth/mainnet/address/0x68445b9e334374435b26ff75f4236b8a152ab9a6/transactions
The code tab is not visible

for the same contract with _the same address_ it is visible on POA Core
https://blockscout.com/poa/core/address/0x68445b9e334374435b26ff75f4236b8a152ab9a6/contracts

Also, it is visible on mainnet
https://etherscan.io/address/0x68445b9e334374435b26ff75f4236b8a152ab9a6#code

[acravenho]

@melnikaite We do not support internal transactions on Ganache due to the fact that Ganache does not support internal transactions and does not plan to support them.

@igorbarinov The reason that contract is not showing up yet is because that contract creation internal transaction has not been indexed yet. There is no bug here but just needs more time to get indexed.

[melnikaite]

What rpc method return internal transactions? Why they are required? Having code on address should be enough.

[acravenho]

Ganache uses a modified Geth implementation which uses call_trace on debug_traceTransaction. This is currently not supported by Ganache. We requested this support from them but they told us this was not a priority.

A solution to this issue would be to use eth_getCode during indexing which is a quick call to make in order to receive the contract creation code. Closing this issue in favor of #1336