80 Compute Units.
Traces need the state of the traced block, so Unichain Mainnet can trace roughly the last 10,000 blocks, about 2.8 hours at Unichain’s 1-second block time. Older blocks return JSON-RPC error
-32603 with a message that contains state at block #<number> is pruned.Parameters
transactionHash - String - Required - The transaction hash to be traced.
object - Object - Required - The tracer object with the following fields:
tracer- String - The type of tracer, options are:callTracerorprestateTracer.callTracer- String - The callTracer keeps track of all call frames, including depth - calls, that are made during a transaction.prestateTracer- String - The prestateTracer replays the transaction and tracks every part of state that occurred during the transaction.
tracerConfig- Object (Optional) - The object to specify the configurations of the tracer.onlyTopCall- Boolean - When set to true, this will only trace the primary (top-level) call and not any sub-calls. It eliminates the additional processing for each call frame.
timeout- String (Optional) - A string of decimal integers that overrides the JavaScript-based tracing calls default timeout of 5 seconds. Example:10sfor 10 seconds.
Returns
result - With callTracer, an object with the result of the trace, containing:
from- The address the transaction is sent from.gas- The integer of the gas provided for the transaction execution.gasUsed- The integer of the gas used.to- The address the transaction is directed to.input- The data given at the time of input.value- The integer of the value sent with this transaction.type- The type of call.
prestateTracer, the result is instead a map keyed by account address, holding the state the transaction touched (such as balance, nonce, code and storage).