Thread by @gakonst

🔥⚒️ NEW FOUNDRY RELEASE 🔥⚒️

Announcing Anvil, a blazing-fast local testnet node implementation, in Rust!

You can consider Anvil a drop-in replacement for `ganache-cli` or `hardhat node`, for deploying & testing your contracts from frontends or interacting over RPC. 1/N

In the spirit of all Foundry tools, Anvil is fast! ~3.5x faster than Hardhat on @uniswap/v3-periphery.

This is still an early release, so more testing is welcome here, so that we can further improve performance and/or identify edge cases!

github.com/foundry-rs/fou…

Anvil supports all major eth namespace RPC APIs, as well as Hardhat's state overrides, evm_mine, evm_snapshot, geth/parity style traces & more!

@MattssE built it to be as backwards compatible as possible, so that it can act as a drop-in replacement for Ganache & Hardhat nodes!

You can get Anvil on all Foundry-supported platforms with the latest `foundryup`.

1. Update foundryup: `curl -L foundry.paradigm.xyz | bash`
2. Run it: `foundryup`

Boom! No third party dependencies, ~6MB binary!

Anvil is modular, meaning the RPC types & handlers are split in a way that they're reusable in third party packages, e.g. a Rust JSON-RPC proxy.

It's built using Axum, which is the next-generation library for building web applications in Rust github.com/tokio-rs/axum

Next steps now that we have Anvil:

Build a Hardhat plugin which injects the Foundry toolchain to improve the devex of Hardhat users:
* Launch Anvil instead of Hardhat node
* Use `forge build` instead of `hardhat compile`

Both resulting in faster builds and testing!

Anvil was built by @MattssE who over the last ~4-5 weeks has been solely focused on it, building on @rohitnarurkar's previous work.

The commits & review comments are a great way to get ramped up in Foundry development and would recommend taking a look.

github.com/foundry-rs/fou…

We've been non-stop developing Foundry to improve the Ethereum developer experience.

If you like the work, consider starring the Github repository!

Onwards! /fin

github.com/foundry-rs/fou…

yikes typo twitter.com/mattsse_, follow this guy

twitter.com/mattsse_ typo*