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feat(provider): add anvil_dump_state_with_history to AnvilApi - #4025
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Adds a non-breaking `anvil_dump_state_with_history` method alongside the existing `anvil_dump_state`. It passes `true` to the `anvil_dumpState` RPC, which includes historical states of accounts and storage at particular block hashes in the dump — allowing a reloaded node to serve RPC calls for blocks prior to the one at which state was dumped. Equivalent to running anvil with `--preserve-historical-states` at startup.
antonbaliasnikov
requested review from
DaniPopes,
grandizzy,
klkvr,
mattsse and
onbjerg
as code owners
June 5, 2026 09:44
mattsse
approved these changes
Jun 7, 2026
1 task
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Motivation
anvil_dumpStateaccepts an optionalpreserve_historical_states: boolparameter (added in foundry-rs/foundry), butAnvilApi::anvil_dump_statealways calls the RPC without any parameter, which makes the server default tofalse— silently omitting historical states from the dump even when the node was started with--preserve-historical-states.There is no way to get a full state dump (including historical account and storage states at each block hash) through the typed provider API.
Solution
Adds
anvil_dump_state_with_historyas a non-breaking addition toAnvilApi. It callsanvil_dumpStatewithtrue, including historical states in the returned buffer. A reloaded node can then serve RPC calls for blocks prior to the one at which state was dumped.The existing
anvil_dump_stateis unchanged to avoid breaking changes.PR Checklist