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bal-pusher readme

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@ -28,3 +28,71 @@ The `bal-server` application can be configured using environment variables. The
| `BAL_SERVER_TESTNET_FIXED_FEE` | Fixed fee for the testnet environment. | 50000 |
| `BAL_SERVER_BITCOIN_ADDRESS` | Bitcoin address for the mainnet environment. | - |
| `BAL_SERVER_BITCOIN_FIXED_FEE` | Fixed fee for the mainnet environment. | 50000 |
# bal-pusher
`bal-pusher` is a tool that retrieves Bitcoin transactions from a database and pushes them to the Bitcoin network when their **locktime** exceeds the **median time past** (MTP). It listens for Bitcoin block updates via ZMQ.
## Installation
To use `bal-pusher`, you need to compile and install Bitcoin with ZMQ (ZeroMQ) support enabled. Then, configure your Bitcoin node and `bal-pusher` to push the transactions.
### Prerequisites
1. **Bitcoin with ZMQ Support**:
Ensure that Bitcoin is compiled with ZMQ support. Add the following line to your `bitcoin.conf` file:
```
zmqpubhashblock=tcp://127.0.0.1:28332
```
2. **Install Rust and Cargo**:
If you haven't already installed Rust and Cargo, you can follow the official instructions to do so: [Rust Installation](https://www.rust-lang.org/tools/install).
### Installation Steps
1. Clone the repository:
```bash
git clone <repo-url>
cd bal-pusher
```
2. Build the project:
```bash
cargo build --release
```
3. Install the binary:
```bash
sudo cp target/release/bal-pusher /usr/local/bin
```
## Configuration
`bal-pusher` can be configured using environment variables. If no configuration file is provided, a default configuration file will be created.
### Available Configuration Variables
| Variable | Description | Default |
|---------------------------------------|------------------------------------------|----------------------------------------------|
| `BAL_PUSHER_CONFIG_FILE` | Path to the configuration file. If the file does not exist, it will be created. | `$HOME/.config/bal-pusher/default-config.toml` |
| `BAL_PUSHER_DB_FILE` | Path to the SQLite3 database file. If the file does not exist, it will be created. | `bal.db` |
| `BAL_PUSHER_ZMQ_LISTENER` | ZMQ listener for Bitcoin updates. | `tcp://127.0.0.1:28332` |
| `BAL_PUSHER_BITCOIN_HOST` | Bitcoin server host for RPC connections. | `http://127.0.0.1` |
| `BAL_PUSHER_BITCOIN_PORT` | Bitcoin RPC server port. | `8332` |
| `BAL_PUSHER_BITCOIN_COOKIE_FILE` | Path to Bitcoin RPC cookie file. | `$HOME/.bitcoin/.cookie` |
| `BAL_PUSHER_BITCOIN_RPC_USER` | Bitcoin RPC username. | - |
| `BAL_PUSHER_BITCOIN_RPC_PASSWORD` | Bitcoin RPC password. | - |
## Running `bal-pusher`
Once the application is installed and configured, you can start `bal-pusher` by running the following command:
```bash
$ bal-pusher
```
This will start the service, which will listen for Bitcoin blocks via ZMQ and push transactions from the database when their locktime exceeds the median time past.