Internal Transactions from node

[shaswatsaloni]

Hi all,

Anyone can provide me with the Curl query or the method name to get the internal transaction based upon transaction hash or Block Number?

Thanks, Saloni

[minh-bq]

I think you want to get the callstack of the transaction, right?

Here is an example on a testnet transaction.

curl --location 'rpc_url' \
--header 'Content-Type: application/json' \
--data '{
    "jsonrpc": "2.0",
    "method": "debug_traceTransaction",
    "params": [
        "0x23c97b5925b7012919584685e12cf6d05f549fe9547f7d5812f2e0fed87113ee",
        {
            "tracer": "flatCallTracer"
        }
    ],
    "id": 1
}'

{
    "jsonrpc": "2.0",
    "id": 1,
    "result": [
        {
            "action": {
                "callType": "call",
                "from": "0xa85ddddceeab43dccaa259dd4936ac104386f9aa",
                "gas": "0x7fffffffffffffff",
                "input": "0xc245db0f0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000a0000000000000000000000009422d990acdc3f2b3aa3b97303ad3060f09d7ffc0000000000000000000000009d726a549824eb289c5495e65dd421e0a681842a0000000000000000000000009f1abc67bea4db5560371ff3089f4bfe934c36bc000000000000000000000000a087037fd6ef66740083692f34bf90828cf5f219000000000000000000000000a325fd3a2f4f5cafe2c151ee428b5ceded628193000000000000000000000000a85ddddceeab43dccaa259dd4936ac104386f9aa000000000000000000000000acf8bf98d1632e602d0b1761771049af21dd6597000000000000000000000000c3c97512421bf3e339e9fd412f18584e53138bfa000000000000000000000000d086d2e3fac052a3f695a4e8905ce1722531163c000000000000000000000000e9bf2a788c27dadc6b169d52408b710d267b9bff",
                "to": "0x41acdfe786171824a037f2cd6224c5916a58969a",
                "value": "0x0"
            },
            "blockHash": "0x5769cd6625af6f7486285373d2b75e39ea54f994b4319d39f0b5bbb96fb3a85c",
            "blockNumber": 25806695,
            "result": {
                "gasUsed": "0x1890c",
                "output": "0x"
            },
            "subtraces": 1,
            "traceAddress": [],
            "transactionHash": "0x23c97b5925b7012919584685e12cf6d05f549fe9547f7d5812f2e0fed87113ee",
            "transactionPosition": 0,
            "type": "call"
        },
        {
            "action": {
                "callType": "delegatecall",
                "from": "0x41acdfe786171824a037f2cd6224c5916a58969a",
                "gas": "0x7dfffffffffff512",
                "input": "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",
                "to": "0x91f7e3d9835054bbad7798531942d12d44443347",
                "value": "0x0"
            },
            "blockHash": "0x5769cd6625af6f7486285373d2b75e39ea54f994b4319d39f0b5bbb96fb3a85c",
            "blockNumber": 25806695,
            "result": {
                "gasUsed": "0x17dcc",
                "output": "0x"
            },
            "subtraces": 2,
            "traceAddress": [
                0
            ],
            "transactionHash": "0x23c97b5925b7012919584685e12cf6d05f549fe9547f7d5812f2e0fed87113ee",
            "transactionPosition": 0,
            "type": "call"
        }
...
}

You need to turn on debug APIs on your node and an archive node if you want to query old block/transaction. There are a lot of debug APIs and builtin tracers that you can play with. You can get more information here: https://geth.ethereum.org/docs/interacting-with-geth/rpc/ns-debug and https://geth.ethereum.org/docs/developers/evm-tracing/built-in-tracers.

[DNK90]

@shaswatsaloni ronin doesn't support getting internal transactions natively, you can get the internal transactions by using the tracers as @minh-bq mentioned above. Otherwise, you can query them via Skynet, you can find the instruction here: https://docs.skymavis.com/api/ronin-rest/search-internal-transactions

[shaswatsaloni]

Thanks, @minh-bq and @DNK90 , that helped.

Saloni.