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Ethereum compatibility layer for Substrate.

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UniqueNetwork/unique-frontier

 
 

Frontier

GitHub Workflow Status Matrix

Frontier is Substrate's Ethereum compatibility layer. It allows you to run unmodified Ethereum dapps.

The goal of Ethereum compatibility layer is to be able to:

  • Run a normal web3 application via the compatibility layer, using local nodes, where an extra bridge binary is acceptable.
  • Be able to import state from Ethereum mainnet.

Releases

Primitives

Those are suitable to be included in a runtime. Primitives are structures shared by higher-level code.

  • fp-consensus: Consensus layer primitives. Crates.io
  • fp-evm: EVM primitives. Crates.io
  • fp-rpc: RPC primitives. Crates.io
  • fp-storage: Well-known storage information. Crates.io

Pallets

Those pallets serve as runtime components for projects using Frontier.

  • pallet-evm: EVM execution handling. Crates.io
  • pallet-ethereum: Ethereum block handling. Crates.io
  • pallet-dynamic-fee: Extends the fee handling logic so that it can be changed within the runtime. Crates.io

EVM Pallet precompiles

Those precompiles can be used together with pallet-evm for additional functionalities of the EVM executor.

  • pallet-evm-precompile-simple: Four basic precompiles in Ethereum EVMs. Crates.io
  • pallet-evm-precompile-blake2: BLAKE2 precompile. Crates.io
  • pallet-evm-precompile-bn128: BN128 precompile. Crates.io
  • pallet-evm-precompile-ed25519: ED25519 precompile. Crates.io
  • pallet-evm-precompile-modexp: MODEXP precompile. Crates.io
  • pallet-evm-precompile-sha3fips: Standard SHA3 precompile. Crates.io
  • pallet-evm-precompile-dispatch: Enable interoperability between EVM contracts and other Substrate runtime components. Crates.io

Client-side libraries

Those are libraries that should be used on client-side to enable RPC, block hash mapping, and other features.

  • fc-consensus: Consensus block import. Crates.io
  • fc-db: Frontier-specific database backend. Crates.io
  • fc-mapping-sync: Block hash mapping syncing logic. Crates.io
  • fc-rpc-core: Core RPC logic. Crates.io
  • fc-rpc: RPC implementation. Crates.io

Development workflow

Pull request

All changes (except new releases) are handled through pull requests.

Versioning

Frontier follows Semantic Versioning. An unreleased crate in the repository will have the -dev suffix in the end, and we do rolling releases.

When you make a pull request against this repository, please also update the affected crates' versions, using the following rules. Note that the rules should be applied recursively -- if a change modifies any upper crate's dependency (even just the Cargo.toml file), then the upper crate will also need to apply those rules.

Additionally, if your change is notable, then you should also modify the corresponding CHANGELOG.md file, in the "Unreleased" section.

If the affected crate already has -dev suffix:

  • If your change is a patch, then you do not have to update any versions.
  • If your change introduces a new feature, please check if the local version already had its minor version bumped, if not, bump it.
  • If your change modifies the current interface, please check if the local version already had its major version bumped, if not, bump it.

If the affected crate does not yet have -dev suffix:

  • If your change is a patch, then bump the patch version, and add -dev suffix.
  • If your change introduces a new feature, then bump the minor version, and add -dev suffix.
  • If your change modifies the current interface, then bump the major version, and add -dev suffix.

If your pull request introduces a new crate, please set its version to 1.0.0-dev.

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Ethereum compatibility layer for Substrate.

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