Autonity Utility Tool (aut)

A command-line RPC client for Autonity. Run aut --help for the list of all commands and options.

Quick Start

Requirements:

• Python 3.8 or greater (Install using the package manager for your OS or pyenv ).
  • (Note that websocket connections are not supported for Python 3.10+ due to an issue in the latest stable version of the web3.py dependency)
• The pipx tool (Install a recent version with pip install pipx)

To install the aut tool as a pipx package, isolated in its own environment, run:

pipx install git+https://github.com/autonity/aut.git

To upgrade from an earlier pipx installation of aut, use the --force flag:

pipx install --force git+https://github.com/autonity/aut.git

Once successfully installed, the aut command should be available in the PATH. All commands are discoverable from the help text. Type aut --help, aut <command> --help etc. for details.

Note:

• If pipx selects an incompatible version of Python, you may need to specify a specific one. Use the --python flag:

  pipx install --python $(which python3.9) git+ssh://git@github.com/autonity/aut.git

  See the pipx install help text for details.

• If the aut command is not available, ensure that ~/.local/bin appears in your PATH. Run pipx ensurepath to verify.

(Optional) Enable command completion (bash and zsh)

Completion is available in bash and zsh shells as follows. (Adapt these commands to your particular configuration.)

# For zsh, replace bash_source with zsh_source.
$ _AUT_COMPLETE=bash_source aut > ~/.aut-complete
$ echo 'source ~/.aut-complete' >> ~/.bashrc

Auto-complete should be enabled in new shells. (Use source ~/.aut-complete to activate it in the current shell instance.)

Configuration using .autrc files

If the aut command finds this file, it reads configuration parameters from it. See the sample file in this repo. This avoids the need to enter certain values on the command line. These parameters can be overridden by environment variables and command-line parameters where necessary.

If .autrc is not found in the current directory, all parent directories are searched in turn and the first .autrc file found is used. Alternatively, this file can be placed in ~/.config/aut/autrc.

A very simple .autrc file may specify the endpoint for Web3 connections:

# Create a config file holding the rpc endpoint.
$ echo '[aut]' > .autrc
$ echo 'rpc_endpoint = https://rpc1.piccadilly.autonity.org/' >> .autrc

Usage Examples

Create a new account (for demo purposes)

# Create an account
# !! For demonstration purposes only. Use a HW wallet or other key-management infrastructure. !!
$ mkdir -p keystore
$ aut account new --keyfile keystore/alice.key
Password for new account:
Confirm account password:
0xd888bc90720757796C72eC2a3A231c81b55e8097

This can be added as the default key for transaction signing (and default address for queries) in the .autrc file:

echo 'keyfile = keystore/alice.key' >> .autrc

Check account balance (after funding the account)

# Check Alice's balance (use address in keystore/alice.key), given in Wei.
$ aut account balance
100000000000000000000
# Check Bob's balance (1 ATN).  Bob's address is 0x4EcE2e62E67a7B64a83D3E180dC86962145b762f
$ aut account balance 0x4EcE2e62E67a7B64a83D3E180dC86962145b762f
1000000000000000000

Create, sign and send a transaction

# Send 1 ATN to Bob
$ aut tx make --to 0x4EcE2e62E67a7B64a83D3E180dC86962145b762f --value 1aut | aut tx sign - | aut tx send -
Enter passphrase (or CTRL-d to exit):
0x47f71a94372d00a3066414b80f3b9c78d71b3011479ddc86e37ab86e0fe80d8a

Explanation of the above: The maketx command extracts the from address from the default keyfile, and automatically sets the gas, nonce and other fields by querying the RPC endpoint in the config file. It then writes this to stdout, which is piped to the signtx command, using the - argument to indicate stdin. The sign signtx decrypts the default keyfile after querying the user for the password, and writes the signed transaction to stdout. This is then piped to the sendtx command, which connects to the RPC endpoint given in the config file and passes the signed transaction to the node for broadcast. sendtx then outputs the transaction hash to stdout.

All configuration options can be set using command-line parameters to override the configuration file. Use the --help flag with any command to see all available options.

Wait for the transaction

# Wait for a transaction to complete.  Print the transaction receipt to stdout.
$ aut tx wait 0x47f71a94372d00a3066414b80f3b9c78d71b3011479ddc86e37ab86e0fe80d8a
{"blockHash": "0x65e74faaaee5efa3b6e998fd78c8e1ca3085c8bd88709101e8fa801a03ab371d", "blockNumber": 5780419, "contractAddress": null, "cumulativeGasUsed": 21000, "effectiveGasPrice": 1000000000, "from": "0xd888bc90720757796C72eC2a3A231c81b55e8097", "gasUsed": 21000, "logs": [], "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000", "status": 1, "to": "0x4EcE2e62E67a7B64a83D3E180dC86962145b762f", "transactionHash": "0x47f71a94372d00a3066414b80f3b9c78d71b3011479ddc86e37ab86e0fe80d8a", "transactionIndex": 0, "type": "0x2"}

# Re-check Bob's balance
$ aut account balance 0x4EcE2e62E67a7B64a83D3E180dC86962145b762f
2000000000000000000

Call contracts

Contract calls are possible using the following syntax:

aut contract call --address CONTRACT_ADDRESS --abi ABI_FILE METHOD [PARAMETERS]...

As an example, assuming that the RPC URL has been set in the .autrc file, calling the getProposer function of the Autonity contract is

$ aut  contract call --abi $(aut protocol contract-abi-path) --address $(aut protocol contract-address) \
  getProposer 10000 1
"0x31870f96212787D181B3B2771F58AF2BeD0019Aa"

Complex types

The types array and tuple are supported as parameters as single quoted strings.

For example, giving a contract function arrayLength that takes a string[] input, the command will look like the following:

$ aut contract call --abi ABI_FILE_PATH --address CONTRACT_ADDRESS \
  arrayLength '["a","b","c","d","e","f","g"]'
7

The same applies to tuple types, giving a struct:

struct Payment {
    address from;
    uint256 blockNumber;
    uint256 amount;
}

A contract call printHeight that accepts a Payment as input will be:

$ aut contract call --abi ABI_FILE_PATH --address CONTRACT_ADDRESS  \
  printHeight '["0x31870f96212787D181B3B2771F58AF2BeD0019Aa", 183413, 1000000000000000000]'
183413

Development

The project is managed using hatch. Check the installation instructions here.

Hatch will automatically manage a virtual environment for the project. To run the command in development mode use:

hatch run aut ....

alternatively, you can open a shell in the hatch environment by executing

hatch shell

To run the unit and script-based tests, use hatch run test. To check for linting errors, use hatch run lint:all. To reformat the code, use hatch run lint:format.

Reporting a Vulnerability

Please do not file a public ticket mentioning the vulnerability.

Instead, please send an email to security@autonity.org to report a security issue.

The following PGP key may be used to communicate sensitive information to developers:

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