Add base_meterBundle RPC for transaction bundle metering #142
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Implements JSON-RPC endpoint to simulate and meter Optimism transaction bundles, returning detailed gas usage, execution time, and bundle hash using Flashbots methodology. Includes reusable meter_bundle() function for non-RPC contexts.
danyalprout
reviewed
Oct 27, 2025
Add comprehensive tests following flashblocks-rpc pattern with funded test accounts from genesis.json. Tests cover bundle metering, gas calculations, state resolution, and error handling.
- Add tips-core dependency (default-features=false to avoid version conflicts) - Replace MeterBundleRequest with tips-core Bundle - Use BundleWithMetadata.bundle_hash() instead of manual calculation - Use bundle.block_number and bundle.min_timestamp for simulation - Update docs to clarify TIPS Bundle format - Add workaround for op-alloy 0.20/0.21 version mismatch (temporary until next reth release)
niran
commented
Oct 28, 2025
niran
commented
Oct 28, 2025
This was referenced Oct 28, 2025
wlawt
reviewed
Oct 28, 2025
|
Once this is reviewed, I'm going to EDIT: turns out the merge base is editable! It's now based on main. |
2 tasks
Update tips-core to rev 27674ae which includes the metering response types. Remove local type definitions and use the types from tips-core instead.
1 task
Bundle metering now always uses the latest available block state for simulation. The bundle.block_number parameter is only used for TIPS bundle validity checks, not for state selection.
danyalprout
approved these changes
Oct 29, 2025
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Implements JSON-RPC endpoint to simulate and meter Optimism transaction bundles, returning detailed gas usage, execution time, and bundle hash using Flashbots methodology.
Includes reusable meter_bundle() function for non-RPC contexts.