trace_replayBlockTransactions

POST

Traces the execution of all transactions included in a specified block. This method provides detailed trace information for all transactions executed in that block and is used to analyze the transaction processing at the block level.

param[0]

blockNumberOrTagstringrequired

Use either block number or block tag to specify a block.

Block number: Hexadecimal string (e.g. "0x1")
Block tag: Enum string (e.g. "latest", "earliest", "pending")
- earliest: The oldest available block on the chain.
- finalized: A recently finalized block that can no longer be changed. Primarily used in proof-of-stake (PoS) blockchains.
- safe: A recent block considered safe by the network (immune to reorgs).
- latest: The most recent block on the chain (may be subject to reorgs).
- pending: The next block to be mined, including pending transactions in the mempool.

param[1]

traceTypearrayrequired

Trace type specifies the data types used when querying detailed execution information for a specific transaction or block on the Ethereum blockchain. This array can contain the following three string values:

vmTrace: Traces the virtual machine's step-by-step execution in detail. This includes memory state, stack state, and the result of each execution instruction.
trace: Provides step-by-step logs of transaction execution. These logs include call flow and details of internal transactions that occurred.
stateDiff: Shows the difference in account state before and after transaction execution. This includes changed storage keys and values, account balance changes, and contract code changes.

This information helps developers better understand the transaction processing flow and debug. Each type provides detailed information on a specific aspect of the blockchain to clearly understand the impact of a transaction.

Responses

Information about the traced action

fromstring

Caller address

callTypestring

Call type (call, delegatecall, staticcall, etc.)

gasstring

Gas limit set for the call (hex)

inputstring

Call input data (hex)

tostring

Callee address

valuestring

Amount of ETH transferred (hex, in wei)

blockHashstring

Hash of the block containing the transaction

blockNumberinteger

Block number containing the transaction

Call result

gasUsedstring

Actual gas used (hex)

outputstring

Call return data (hex)

subtracesinteger

Number of sub-traces

traceAddressarray

Index array representing the trace path

transactionHashstring

Hash of the traced transaction

transactionPositioninteger

Position of the transaction within the block

typestring

Trace type (call, create, reward, etc.)

codestringrequired

Code identifying the cause of the failed request.

messagestringrequired

Detailed message including the name and value of the invalid parameter.

{
  "code": "ERROR_CODE",
  "message": "Unauthorized"
}

X-API-KEY

cURL

curl -X POST 'https://ethereum-mainnet.nodit.io' \
  -H 'Content-Type: application/json' \
  -H 'X-API-KEY: nodit-demo' \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "trace_replayBlockTransactions",
    "params": [
      "latest",
      [
        "trace"
      ]
    ]
  }'