feat(rpc-types-eth): add blob_base_fee to BlockOverrides#3585
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- Remove deny_unknown_fields from BlockOverrides to allow forward compatibility - Add blob_base_fee field for overriding blob base fee in eth_simulateV1 - Add with_blob_base_fee builder method - Update is_empty check to include blob_base_fee Amp-Thread-ID: https://ampcode.com/threads/T-019befd2-21c9-74f0-a813-27f04b7291b3 Co-authored-by: Amp <[email protected]>
mattsse
requested review from
DaniPopes,
grandizzy,
klkvr,
onbjerg and
zerosnacks
as code owners
grandizzy
approved these changes
Jan 24, 2026
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Summary
This PR adds support for the
blobBaseFeefield inBlockOverridesand removesdeny_unknown_fieldsfor better forward compatibility.Changes
deny_unknown_fields: Allows clients to accept new fields without breaking, improving forward compatibilityblob_base_feefield: Supports overriding the blob base fee ineth_simulateV1callswith_blob_base_feebuilder method: Convenience method for setting blob base feeis_emptycheck: Includeblob_base_feein the emptiness checkMotivation
The
eth_simulateV1RPC method supports overriding block parameters includingblobBaseFee. This field is used in the execution-apis test suite and clients like geth support it.Removing
deny_unknown_fieldsalso prevents deserialization failures when new fields are added to the spec, making the type more resilient to upstream changes.Testing
cargo check -p alloy-rpc-types-eth --all-featurespassescargo test -p alloy-rpc-types-eth --all-featurespasses