gast

Gast - Ethereum Toolkit

Gast is a command-line toolkit designed to streamline the management of Ethereum transactions and gas prices. It provides some sets of commands for managing transactions (including creation, signing, and tracing).

Installation

Firstly, ensure you have Go language installed. To verify, run:

 go version

If not installed, you can here: https://go.dev/dl/

After installing Go, run this command to install Gast:

go install github.com/Jesserc/gast@latest

Check if Gast is installed:

gast help

Usage

To use Gast, run:

gast [command]

Available Commands

• completion: Generate the autocompletion script for the specified shell.
• gas-price: Fetch the current gas price from specified Ethereum networks.
• help: Help about any command.
• tx: Manages Ethereum transactions, including creation, signing, and tracing.

Flags

• --config string: Config file (default is $HOME/.gast.yaml).
• -h, --help: Help for Gast.
• -t, --toggle: Help message for toggle.

For more information about a command, use:

gast [command] --help

Transaction Management

Manage Ethereum transactions with ease. The tx command supports a variety of subcommands:

gast tx [sub-command] [flags]

• create-contract: Deploy Solidity contract
• create-raw: Generate a raw, signed EIP-1559 transaction
• send-raw: Submit a raw, signed transaction
• send-blob: Create and send an EIP-4844 blob transaction
• send: Send EIP-1559 transaction
• trace: Retrieve and display the execution trace (path) of a given transaction hash
• sign-message: Sign a given message with a private key
• verify-sig: Verify the signature of a signed message (can be created with the sign-message command)
• estimate-gas: Estimate the gas required to execute a given transaction
• get-nonce: Get the transaction count of an account

Fetching Gas Prices

To fetch the current gas prices from specific Ethereum networks, use:

gast gas-price [flags]

Supported flags include:

• --eth: Use the default Ethereum RPC URL.
• --op: Use the default Optimism RPC URL.
• --arb: Use the default Arbitrum RPC URL.
• --base: Use the default Base RPC URL.
• --linea: Use the default Linea RPC URL.
• --zksync: Use the default zkSync RPC URL.
• -u, --url string: Specify a custom RPC URL for fetching the gas price.

Tests

To run unit test:

go test -v ./... -short

To run integration test (connects to network):

 go test -v ./...  -run Integration

Contribution

Good PRs or suggestions are welcomed.