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onflow / flow-evm-gateway

FlowEVM Gateway implements an Ethereum-equivalent JSON-RPC API for EVM clients to use
https://developers.flow.com/evm/about
Apache License 2.0
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Populate `LogsBloom` field with its default fault for block responses #373

Closed m-Peter closed 3 months ago

m-Peter commented 3 months ago

Closes: https://github.com/onflow/flow-evm-gateway/issues/372 Related: https://github.com/onflow/flow-evm-gateway/issues/371

Description

One such example is the genesis block, which does not have any transactions, but even so, the LogsBloom field should be the 256-byte empty bloom, instead of 0x. This breaks the serialization for many tools.

For contributor use:

Summary by CodeRabbit

coderabbitai[bot] commented 3 months ago

Walkthrough

This update enhances the BlockChainAPI by adding a LogsBloom field to the block response structure, ensuring it is populated even for blocks without transactions. Additionally, a new test case is introduced to validate the retrieval of the genesis block, confirming its properties and structure. This prepares the code for future logging integration while preserving the functionality of existing features.

Changes

Files Change Summary
api/api.go Added LogsBloom field in prepareBlockResponse method to ensure it returns an empty bloom for blocks without transactions.
tests/web3js/eth_non_interactive_test.js Introduced a test for retrieving the genesis block, checking various properties for correctness and expected behavior.

Assessment against linked issues

Objective Addressed Explanation
Populate the LogsBloom field, even for blocks without any transactions (#372) ✅

🐰 In the blockchain's heart, a bloom now shines,
Even when transactions are absent, it aligns.
With tests that ensure the genesis is right,
Our code hops forward, a marvelous sight!
So let’s cheer for the logs and their future delight! 🌟

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