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.

Installation Steps

1. Clone the repository:

   git clone <repo-url>
   cd bal-pusher
   

2. Build the project:

   cargo build --release
   

3. Install the binary:

   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:

$ 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.