titanoboa-zksync

A Zksync plugin for the Titanoboa Vyper interpreter

Installation

First install the following dependencies, depending on your system:

Google Colab

For Google Colab: The following dependencies should be downloaded automatically.

Zkvyper Compiler

We use the era-compiler-vyper a.k.a. zkvyper: to compile Vyper code to ZkSync-compatible bytecode.

1. Download the latest binary from the zkvyper-bin repository and rename it as zkvyper.

2. On Linux/macOS, mark the binary as executable: chmod a+x <path to file>

3. On macOS, the binary may need to have its quarantine attribute cleared: xattr -d com.apple.quarantine <path to file>

Then, make sure this is available in your system PATH.

ZkSync Node

If you want to test with forks or a local test node, you will need to install the ZkSync era-test-node.

1. Download era-test-node from latest Release

2. Extract the binary and mark as executable:

   tar xz -f era_test_node.tar.gz -C /usr/local/bin/
   chmod +x /usr/local/bin/era_test_node

Then, make sure this is available in your system PATH.

Install the plugin

Finally, install the package:

pip install titanoboa-zksync

Usage

The usage of this plugin is similar to the original Titanoboa interpreter.

Configuring the environment

In Python:

import boa_zksync

boa_zksync.set_zksync_env("<rpc_url>")  # use RPC
boa_zksync.set_zksync_fork("<rpc_url>")  # fork from the mainnet
boa_zksync.set_zksync_test_env()  # run a local test node

In JupyterLab or Google Colab:

import boa, boa_zksync
from boa.integrations.jupyter import BrowserSigner

# use the browser signer and RPC:
boa_zksync.set_zksync_browser_env()  # use the browser signer and RPC
boa.env.set_chain_id(324)  # Set the chain ID to the ZkSync network

# use the browser signer and a custom RPC:
boa_zksync.set_zksync_env("<rpc_url>")
boa.env.set_eoa(BrowserSigner())

Interacting with the network

import boa, boa_zksync

constructor_args, address = [], "0x1234..."

boa_zksync.set_zksync_test_env()  # configure the environment, see previous section

# Load a contract from source code and deploy
boa.loads("contract source code", *constructor_args)

# Load a contract from file and deploy
contract = boa.load("path/to/contract.vy", *constructor_args)

# Load a contract from source file but don't deploy yet
deployer = boa.loads_partial("source code")
deployer.deploy(*constructor_args)  # Deploy the contract
deployer.at(address) # Connect a contract to an existing address

# Load a contract from source file but don't deploy yet
deployer = boa.loads_partial("source code")
deployer.deploy(*constructor_args)  # Deploy the contract
deployer.at(address) # Connect a contract to an existing address

# Run the given source code directly
boa.eval("source code")

Limitations

• # pragma optimize gas is not supported by Zksync