Gnosis Chain: API returns 'type': 'call' for delegate call

[72L]

For delegate call internal transactions at endpoint ?module=account&action=txlistinternal&txhash={transactionHash}, the API returns type: 'call' when I would expect 'delegatecall'

Environment

• BlockScout Version: v4.1.7-beta

Steps to reproduce

• try this API call: https://blockscout.com/xdai/mainnet/api?module=account&action=txlistinternal&txhash=0xa809848cc0bfaf33e58eb8de026f096c7e5184acf7640a326d01aea36c018365

It produces:

{
   "message":"OK",
   "result":[
      {
         "blockNumber":"23498480",
         "contractAddress":"",
         "errCode":"",
         "from":"0x3de8b3e4672a4b5fc63fd2e401881ab1042fc4fd",
         "gas":"14973",
         "gasUsed":"1504",
         "index":"1",
         "input":"0x",
         "isError":"0",
         "timeStamp":"1659496915",
         "to":"0x3e5c63644e683549055b9be8653de26e0b4cd36e",
         "transactionHash":"0xa809848cc0bfaf33e58eb8de026f096c7e5184acf7640a326d01aea36c018365",
         "type":"call",
         "value":"8000000000000000000"
      }
   ],
   "status":"1"
}

• However, if you look at the UI, this is a delegate call https://blockscout.com/xdai/mainnet/tx/0xa809848cc0bfaf33e58eb8de026f096c7e5184acf7640a326d01aea36c018365/internal-transactions

I'm pretty sure the UI is correct given this is a Gnosis Safe using the Gnosis Safe Proxy contract in a delegate call

Expected Behaviour

The API should give "type": "delegatecall"

Actual Behaviour

The API gives "type": "call"

[vbaranov]

@72L the type of this internal transaction is indeed call. What could be misleading here that API doesn't return callType., which is delegatecall for the referenced transaction. We will add callType in the reponse of the API endpoint as well.