🦾 EVMAutomation 🦾 - a command line tool performing automated tasks on smart contracts

In DeFi there is constant pressure to perform different tasks, like compound, hydrate, roll, etc.

This tool was written to enable automation of those tasks to ensure you don't have to do it manually ;-)

It was build to support EVM based blockchains but works currently with 3 contracts on the Binance Smart chain.

As it is build in a modular way, one can expand it quite easily to other projects or even other EVM-based chains.

Currently supported projects are

• DRIP (Faucet Hydration)
• DRIP Garden (Seed Planting)
• TRUNK (Rolling Stampede Bonds)

🔒 Disclaimer on Security and Encryption

This code was specifically written to be as secure as possible, since signing transactions requires the use of a wallet's private key. It's imparative you use the encryption outlined in the code to best protect yourself in the event your computer is ever compomised.

For every contract you will need to save 1-n wallets via the build in encryption function.

The workflow is simple:

1. create a wallet.csv file with wallet_address;private_key - one per line
2. use the build in encryption to encrypt the wallet with an encryption key
3. write down or store this encryption key (per project)
4. IMPORTANT: delete the source.csv file

The tool will display an encryption code (AES-128) which is used to encrypt the wallet address and the private key. Every time you start the tool, you will need to enter the encryption key per contract. So currently if you are in DRIP, GARDEN and STAMPEDE you'll need to enter 3 keys which you have previously noted down.

ℹ️ Installation

Prerequisies

• Preferrably run this on Linux or MacOS, yes Windows can and probably will work but is not tested
• Install Python 3.8 or 3.9 - refer to Google, there are gazillions of docs for that most *nix systems comes with preinstalled packages
• Install the Package Installer for Python, again most distros come with preinstalled, refer to the official installation documentation

Download code from repository

The code is open-source and hostet on github.com so you need to checkout the sources:

# Download the current code of EMVAutomation
git clone https://github.com/nightshift2k/evmautomation.git

# Enter downloaded directory
cd evmautomation

Setup Python virtual environment (virtualenv)

You should run evmautomation in a separated virtual environment this is optional but highly recommended.

# create virtualenv in directory /freqtrade/.env
python3 -m venv .env

# run virtualenv
source .env/bin/activate

Install the package and its dependencies

python3 -m pip install --upgrade pip # upgrades pip 
python3 -m pip install -e . # installs the package and its dependencies

Done

You can use the tool by entering evma on the commandline, the output should look like this:

vscode ➜ /workspaces/evmautomation $ evma
usage: evma [-h] [-c CONFIG] [-r] [-e INFILE OUTFILE]

optional arguments:
  -h, --help            show this help message and exit
  -c CONFIG, --config CONFIG
                        path to the config file
  -r, --run             Run evm automation workflows configured in config.yaml or custom config file (specify with -c)
  -e INFILE OUTFILE, --encrypt INFILE OUTFILE
                        encrypts infile.csv to outfile.json and displays the encryption key

⚙️ Configuration

The configuration consists of two steps:

1. encrypt wallets and private keys
2. configure via config.yaml or any alternate config file that can be specified via --config

Encrypting wallets

The tool uses the cryptography.fernet module and encrypts wallets with an AES-128 key.

To encrypt the wallets:

• create a wallets-projectname.csv, e.g. wallets-drip.csv
• run evma -e wallets-projectname.csv wallets-projectsname.json
• store the shown key in a password manager or write it down
• delete wallets-projectname.csv

Remember, when running the automation the tool will ask you for that encryption key again. If you lose it, you'll need to reencrypt the files over again.

Repeat this for every project (e.g. DRIP, GARDEN, STAMPEDE)

create/adjust config.yaml

The parameters are all described in the config.yaml.example, the simplest way is to copy this file to config.yaml and adjust.

🏃 Running

The goal is to run the tool in unattended mode and recieve notifications via telegram (if enabled) or periodically checking the log file.

To do so without being connected to your linux machine via console or ssh, its advised to use a terminal multiplexer like screen.

A very good explanation how to use screen for such an use case can be found here

🐞 Bug / Feature Request

If you find a bug, kindly open an issue here by including a logfile and a meaningful description of the problem.

If you'd like to request a new function, feel free to do so by opening an issue here.

💻 Development

Want to contribute? Great!🥳

To fix a bug or enhance an existing module, follow these steps:

• Fork the repo
• Create a new branch (git checkout -b improve-feature)
• Make the appropriate changes in the files
• Add changes to reflect the changes made
• Commit your changes (git commit -am 'Improve feature')
• Push to the branch (git push origin improve-feature)
• Create a Pull Request

⚠️ License

evmautomation is free and open-source software licensed under the MIT License.

By submitting a pull request to this project, you agree to license your contribution under the MIT license to this project.