Crate rustywallet_tx 

rustywallet-tx

Bitcoin transaction building, signing, and serialization.

Features

• Build transactions with multiple inputs and outputs
• Automatic coin selection
• Fee calculation (vsize-based)
• Sign P2PKH and P2WPKH inputs
• Serialize transactions for broadcasting

Quick Start

use rustywallet_tx::prelude::*;
use rustywallet_keys::prelude::PrivateKey;

// Create a UTXO
let utxo = Utxo {
    txid: [0u8; 32],
    vout: 0,
    value: 100_000,
    script_pubkey: vec![0x00, 0x14, /* ... 20 bytes ... */],
    address: "bc1q...".to_string(),
};

// Build transaction
let unsigned = TxBuilder::new()
    .add_input(utxo)
    .add_output(50_000, vec![/* scriptPubKey */])
    .set_fee_rate(10) // 10 sat/vB
    .build()
    .unwrap();

println!("Fee: {} sats", unsigned.fee());

Signing

use rustywallet_tx::{sign_p2wpkh, Transaction};
use rustywallet_keys::prelude::PrivateKey;

let private_key = PrivateKey::random();
let mut tx = unsigned.tx;

// Sign P2WPKH input
sign_p2wpkh(&mut tx, 0, 100_000, &private_key).unwrap();

// Serialize for broadcast
let hex = tx.to_hex();

Re-exports

pub use error::TxError;

pub use error::Result;

pub use types::Transaction;

pub use types::TxInput;

pub use types::TxOutput;

pub use types::Utxo;

pub use fee::estimate_vsize;

pub use fee::calculate_fee;

pub use fee::estimate_fee;

pub use fee::is_dust;

pub use script::build_p2pkh_script;

pub use script::build_p2wpkh_script;

pub use script::build_p2tr_script;

pub use script::hash160;

pub use script::is_p2pkh;

pub use script::is_p2wpkh;

pub use script::is_p2tr;

pub use coin_selection::select_coins;

pub use sighash::sighash_legacy;

pub use sighash::sighash_segwit;

pub use sighash::sighash_type;

pub use builder::TxBuilder;

pub use builder::UnsignedTx;

pub use builder::InputInfo;

pub use signing::sign_p2pkh;

pub use signing::sign_p2wpkh;

pub use signing::sign_all;

pub use rbf::is_rbf_enabled;

pub use rbf::enable_rbf;

pub use rbf::disable_rbf;

pub use rbf::create_replacement;

pub use rbf::bump_fee;

pub use rbf::RbfBuilder;

pub use rbf::sequence as rbf_sequence;

pub use taproot::sign_p2tr_key_path;

pub use taproot::sign_p2tr_key_path_with_sighash;

pub use taproot::sign_all_p2tr;

pub use taproot::is_p2tr_script;

pub use taproot::extract_p2tr_pubkey;

Modules

builder

Transaction builder.

coin_selection

Coin selection algorithms.

error

Error types for transaction operations.

fee

Fee calculation utilities.

prelude

Prelude module for convenient imports.

rbf

Replace-By-Fee (RBF) support

script

Script building utilities.

sighash

Sighash calculation for transaction signing.

signing

Transaction signing.

taproot

Taproot (P2TR) transaction signing support

types

Core transaction types.