Questions tagged [trace]
The trace tag has no usage guidance.
16
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Geth debug_traceCall logs parsing
So I have a geth client with debug api enabled, I use it with debug_traceCall in order to trace a call. I want to parse generated event logs from the traceCall (without using custom js parser in the ...
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17
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Debug vs Trace Calls
I want to use Debug calls on the Ethereum chain; I also see Trace calls supported by some clients. What are the key differentiators between these two, and which one is better?
- 193
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How to get position slot allowance automatic
how to get position slot allowance automatically without looking at the code? because each positive slot allowance in several different tokens, some of the default position is 2 but there are 3 and ...
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Which contract's storage does SLOAD/SSTORE use?
A given SSTORE and SLOAD instruction uses storage from a certain smart contract. How can we know which contract that is, and do we need any additional data than the raw struct/opcode traces to find ...
- 121
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Getting execution bytecode from trace_addresses
Given the following call graph:
A
CALLs B
CALLs G
CALLs C
CALLs G
Is it possible to get the full bytecode that was executed by the evm as a single string, given the bytecode of the ...
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90
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How does the PUSH instruction get its input?
I'm trying to understand state storage, and by doing so (for the first time) looking at raw geth traces. I've hit a blocker, though, which is understanding where the arguments to PUSH instructions ...
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408
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Why trace_call (stateDiff) not show balance changes from internal txs?
I am using trace_call with stateDiff Tracer, to show balances changes after a transaction. Already tried to use Erigon and core-geth, the results are identical thoughout changes in usage.
For instance,...
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169
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get final changed state of a transacion
I want to call 'eth_call' and get all changed state after this call. How I can do that?
I want to use it as 'stateDiff' for next 'eth_call'.
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435
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Parsing event logs from VMTrace in trace_call
There are 3 return values in trace_call. State Diff and Trace seem pretty straight forward. However, VMTRace's output contains 2 values - code and ops. Code looks something like this
"...
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123
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State change, trace discrepancies
I'm finding several ETH transactions where the state changes do not match the traces and I cannot figure out why.
For instance, in the transaction below the traces show a transfer of 0....
- 11
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40
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Retain states for the last X blocks in geth
I have a use case where I need to keep states for last 2000 blocks. The default number is 128 if I’m not mistaken.
I’m looking for an option to select minimum number of recent blocks to keep the ...
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153
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Brownie empty traceback and revert_msg
I'm trying to create a Yearn strategy following https://github.com/yearn/brownie-strategy-mix.
But a transaction is failing, and brownie isn't telling me why:
% brownie console
Brownie environment is ...
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2
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1
answer
909
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multiple debug_traceCall
Is there a way to call for multiple debug_traceCall with a Geth client in one RPC?
In other words - what is the equivalent of OpenEthereum's trace_callMany in Geth?
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195
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How to calculate usedGas per block?
I want to sum the total amount of gas used in a block.
When I checked, used gas can be retrieved from the node using 'eth_getTransactionReceipt' and 'trace_block' functions.
However, when checking the ...
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48
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How to test if a transaction create a specific event using the trace api?
I need to frontrun a transaction on a specific contract only if does a specific thing which is fired as an event once included in a block.
So how to get the event based on current contract state of an ...
- 961
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70
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any website that show decoded mainnet transaction trace?
I remember I saw such site when I first start learning about smart contracts last month. It is better than etherscan.io's parity trace, called function name and input are also decoded.
anyone know ...
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