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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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Remote ledger #362

Closed sideninja closed 4 months ago

sideninja commented 4 months ago

Related: #351

This is the first step towards solution 2 in the issue.

The PR implements a remote ledger that is compliant with the atree.Ledger interface that is being used by the state DB. The ledger is read-only and fetches the registers from the configured AN API.

For contributor use:

Summary by CodeRabbit

coderabbitai[bot] commented 4 months ago

Walkthrough

The update introduces new types and functions for interacting with a remote ledger on the Flow blockchain preview network. This includes the remoteLedger type, which implements the atree.Ledger interface, and various methods for fetching and manipulating ledger data. Additionally, it adds test and benchmark functions for evaluating the new remote ledger’s performance and reliability. Dependencies in go.mod have also been updated to support these new functionalities.

Changes

File Summary of Changes
emulator/remote_state.go Introduced the remoteLedger type, implementing the atree.Ledger interface, with methods for fetching values, checking existence, setting values (read-only), and allocating storage indices.
emulator/remote_state_test.go Added tests for ledger interactions on the Flow blockchain preview network, including retrieval of code, nonce, balance, code size, and state information. Also, added benchmark tests for fetching balances and helper functions.
go.mod Added new dependencies github.com/onflow/atree, github.com/onflow/flow/protobuf/go/flow, github.com/huandu/go-clone, and google.golang.org/grpc with updated versions.

Poem

In the world of code where bytes do flow,
A ledger remote sets the data aglow.
With tests and benchmarks, we ensure it's tight,
In preview networks, it performs just right.
Dependencies added, the framework grows,
In this digital garden, a new feature blooms and shows. 🌸

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