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trace_block RPC Method

Returns traces created at given block (Trace Mode required, and supported only on OpenEthereum & Erigon).

Updated on
Jul 30, 2024

trace_block RPC Method

Please note that this RPC method is available to all users on the Growth plan and higher. If you are using the Free or Starter plan, you will need to upgrade to utilize this method. See our pricing for more information.

Parameters

blockNumber
string
REQUIRED
The block number as a string in hexadecimal format or tags. The supported tag values include latest for the latest mined block, pending for the pending state/transactions, safe for the most recent secure block, and finalized for the most recent secure block accepted by more than 2/3 of validators

Returns

array
The block traces, which have the following fields (please note that all return types are hexadecimal representations of their data type unless otherwise stated):
action
The ParityTrace object, which has the following fields:
from
The address of the sender
callType
The type of method such as call, delegatecall
gas
The gas provided by the sender, encoded as hexadecimal
input
The data sent along with the transaction
to
The address of the receiver
value
The integer of the value sent with this transaction, encoded as hexadecimal
blockHash
The hash of the block where this transaction was in
blockNumber
An integer value representing the block number where this transaction was in
error
The error message, if any
result
The ParityTraceResult object which has the following fields:
gasUsed
The amount of gas used by this specific transaction alone
output
The value returned by the contract call, and it only contains the actual value sent by the RETURN method. If the RETURN method was not executed, the output is empty bytes
subtraces
The traces of contract calls made by the transaction
traceAddress
The list of addresses where the call executed, the address of the parents and the order of the current sub call
transactionHash
The hash of the transaction
transactionPosition
The transaction position
type
The value of the method such as call or create
Request
1
curl https://docs-demo.base-mainnet.quiknode.pro/ \
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  -X POST \
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  -H "Content-Type: application/json" \
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  --data '{"method":"trace_block","params":["0x8979B2"],"id":1,"jsonrpc":"2.0"}'
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