A Gateway Daemon for Kalatori

!!! KALATORI IS IN PUBLIC BETA !!!

Kalatori is an open-source daemon designed to enable secure and scalable blockchain payment processing. Licensed under GPLv3 (LICENSE), Kalatori currently supports assets on the Polkadot relay chain and its parachains.

The daemon derives unique accounts for each payment using a provided seed phrase and outputs all payments to a specified recipient wallet. It also offers limited transaction tracking for order management. Kalatori operates in a multithreaded mode and supports multiple currencies configured in a simple TOML-based configuration file.

Client facing frontends can communicate with Kalatori leveraging exposed API described in the API documentation.

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Download

Download the latest Docker container or x86-64 release from the GitHub releases page.

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Compile from Source

To compile the daemon, ensure you have the latest stable version of the Rust compiler installed. Then, run:

cargo build --release --workspace

The compiled binaries will be located in the target/release path.

Project Structure

• chopsticks: Contains configuration files for the Chopsticks tool and a Docker Compose setup for spawning Polkadot and AssetHub test chains.
• configs: Contains configuration files for supported chains and assets.
• docs: Includes project documentation.
• src: The source code for the Kalatori daemon.
• tests: Black-box test suite with a Docker Compose setup for testing the daemon.
• Dockerfile: Instructions for building a Docker image of the daemon.

Configuration File Example

For Polkadot and Asset Hub chains, the configuration file should look like this:

account-lifetime = 604800000 # 1 week.
debug = true
depth = 86400000 # 1 day.

[[chain]]
name = "polkadot"
native-token = "DOT"
decimals = 10
endpoints = [
    "wss://rpc.polkadot.io",
    "wss://1rpc.io/dot",
]

[[chain]]
name = "statemint"
endpoints = [
    "wss://polkadot-asset-hub-rpc.polkadot.io",
    "wss://statemint-rpc.dwellir.com",
]

[[chain.asset]]
name = "USDC"
id = 1337

[[chain.asset]]
name = "USDt"
id = 1984

Environment variables

Kalatori requires the following environment variables for configuration:

• KALATORI_HOST: Address for the daemon's TCP socket server.
• KALATORI_SEED: Seed phrase for account derivation.
• KALATORI_CONFIG: Path to the chain configuration file in the configs directory.
• KALATORI_RECIPIENT: The hexadecimal address to which received payments will be transferred.
• KALATORI_REMARK: A string added to the transaction's remark field.

Usage Example

Run Kalatori for the Polkadot chain:

KALATORI_HOST="127.0.0.1:16726" \
KALATORI_CONFIG="configs/polkadot.toml" \
KALATORI_SEED="bottom drive obey lake curtain smoke basket hold race lonely fit walk" \
KALATORI_RECIPIENT="5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY" \
KALATORI_REMARK="test" \
kalatori

Testing

The black-box test suite verifies the daemon's functionality by interacting with a running instance. Use the following steps to set it up:

1. Start the daemon and test environment:

   cd tests
   docker-compose up

2. Run the tests manually using Yarn:

   ct tests/kalatori-api-test-suite
   yarn
   yarn test

Ensure the DAEMON_HOST environment variable points to the running daemon (default: localhost:16726).

For more details, refer to the testing suite README.md.

Contributing

We welcome contributions! Please refer to the CONTRIBUTING.md file for guidelines on contributing and submitting pull requests.

License

Kalatori is open-source software licensed under the GPLv3 License. See the LICENSE file for more details.

Community and Support

Join the discussion and get support on:

• Kalatori Matrix
• GitHub Discussions

Roadmap

Refer to the Kalatori project board and milestones for the current roadmap and upcoming features.

Acknowledgments

• Polkadot community
• Liberland team