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EIP-3074 Invokers

Generalized EIP-3074 Invokers.

  • BaseInvoker - Invoker template for building arbitrary Invoker logic.
  • BatchInvoker - Invoker with batch transaction support.

Warning

WIP. Very experimental, not audited, use with caution.

Development

Developing with these contracts currently requires foundry-alphanet – a repository containing patches for Foundry to support EIP-3074 opcodes.

We have abstracted foundry-alphanet docker image execution into a set of Makefile scripts listed below.

Installation

First, we will need to set up the submodules for the repository.

make install

Building Contracts

We can build the contracts using forge build via foundry-alphanet:

make cmd="forge build"

Running Tests

We can run tests using forge test via foundry-alphanet:

make cmd="forge test"

Launch a Local Network

We can launch an Anvil instance using anvil via foundry-alphanet:

make cmd="anvil"

Deploying Invoker Contracts

Below, we will deploy the BatchInvoker contract to a local Anvil network.

1. Launch Anvil

First, we will need to launch an Anvil instance. If you are deploying to a launched network, you can skip this step.

make cmd="anvil"

2. Deploy Invoker

Deploy the BatchInvoker contract to the network.

make cmd="forge script Deploy --sig 'deploy()' --rpc-url $RPC_URL --private-key $EXECUTOR_PRIVATE_KEY --broadcast"

Note: if the $RPC_URL you're pointing to is on host, you should use http://host.docker.internal:8545 instead of http://localhost:8545. See Docker's networking docs here.

3. Test Invoker

We can test the BatchInvoker by sending a transaction via the contract.

make cmd="forge script Executor --sig 'sendEth(address,address,uint256)' $INVOKER_ADDRESS 0x3074ca113074ca113074ca113074ca113074ca11 0.01ether --rpc-url $RPC_URL --broadcast"

3074-Compatible Networks

Otim Hosted Devnet

Powered by Reth AlphaNet, check out Otim's 3074 devnet docs for detailed information on how to set up the network, get devnet ETH, use the deployed BatchInvoker, and more.