Kalatori-backend: A Rust repository from Vovke

A gateway daemon for Kalatori

Download

Compiled binaries for Linux x86-64 can be found in the "Releases" section.

Compile from the source

To compile the daemon, the latest stable Rust compiler version is required. Then run the following command:

cargo b -r --workspace

Compiled binaries can be found in the target/release path.

Structure & settings

The daemon for Kalatori consists of 2 variants:

kalatori may be used for DOT, the native currency of the Polkadot and Polkadot Asset Hub chains.
kalatori-ah may be used for the Polkadot Asset Hub chain and 2 of its assets: USDt (1984) & USD Coin (1337).

Both variants have almost the same startup environment variables:

KALATORI_HOST: an address where the daemon opens its TCP socket server.
KALATORI_SEED: a seed that's used as a base for the account derivation.
KALATORI_DATABASE: a path to the daemon future/existing database.

Note that a separate database file must be used for each supported currency, otherwise the database will be corrupted.

KALATORI_RPC: an address of a Substrate RPC server.
KALATORI_OVERRIDE_RPC: add this variable with any value to allow changing an RPC server address in the database.
KALATORI_DECIMALS: set decimals for the chain native currency.

Presents only in kalatori.

KALATORI_USD_ASSET: sets which USD asset should be used. Possible value is "USDT" or "USDC".

Presents only in kalatori-ah.

KALATORI_DESTINATION: a hexadecimal address of the account that the daemon will send all payments to.

Examples

A tipical command to run kalatori for the Polkadot chain may look like this:

KALATORI_HOST="127.0.0.1:16726" \
KALATORI_SEED="bottom drive obey lake curtain smoke basket hold race lonely fit walk" \
KALATORI_DATABASE="database.redb" \
KALATORI_RPC="wss://rpc.polkadot.io" \
KALATORI_DECIMALS="12" \
KALATORI_DESTINATION="0xd43593c715fdd31c61141abd04a99fd6822c8558854ccde39a5684e7a56da27d" \
kalatori

And a command to run kalatori-ahfor the Polkadot AssetHub chain may look like this:

KALATORI_HOST="127.0.0.1:16726" \
KALATORI_SEED="bottom drive obey lake curtain smoke basket hold race lonely fit walk" \
KALATORI_DATABASE="database-ah-usdc.redb" \
KALATORI_RPC="wss://polkadot-asset-hub-rpc.polkadot.io" \
KALATORI_DESTINATION="0xd43593c715fdd31c61141abd04a99fd6822c8558854ccde39a5684e7a56da27d" \
KALATORI_USD_ASSET="USDC"
kalatori-ah

Testing

Chopsticks can be used to test the daemon out on a copy of a real network. This repository contains 2 config examples for testing:

- Polkadot

Use the following command inside this repository root directory to run Chopstick with the Polkadot config example:

npx @acala-network/chopsticks@latest -c chopsticks/pd.yml

Then run kalatori with KALATORI_RPC set on the Chopsticks default server:

KALATORI_HOST="127.0.0.1:16726" \
KALATORI_SEED="bottom drive obey lake curtain smoke basket hold race lonely fit walk" \
KALATORI_RPC="ws://localhost:8000" \
KALATORI_DECIMALS="12" \
KALATORI_DESTINATION="0xd43593c715fdd31c61141abd04a99fd6822c8558854ccde39a5684e7a56da27d" \
kalatori

- Polkadot Asset Hub

Use the following command inside this repository root directory to run Chopstick with the Polkadot Asset Hub config example:

npx @acala-network/chopsticks@latest -c chopsticks/pd-ah.yml

Then run kalatori-ah with KALATORI_RPC set on the Chopsticks default server, and KALATORI_USD_ASSET set on the USD asset being tested:

KALATORI_HOST="127.0.0.1:16726" \
KALATORI_SEED="bottom drive obey lake curtain smoke basket hold race lonely fit walk" \
KALATORI_RPC="ws://localhost:8000" \
KALATORI_DESTINATION="0xd43593c715fdd31c61141abd04a99fd6822c8558854ccde39a5684e7a56da27d" \
KALATORI_USD_ASSET="USDC"
kalatori-ah

Vovke/Kalatori-backend