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Esplora client now working with persisted mnemonics

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This commit is contained in:
Dave Hrycyszyn
2024-06-24 18:41:55 +01:00
parent 117915bded
commit a516de4bcb
4 changed files with 55 additions and 37 deletions
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38
side-node/src/clients/btc_esplora_client.rs
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@@ -1,32 +1,56 @@
use std::{collections::BTreeSet, io::Write, str::FromStr};
use std::{collections::BTreeSet, fs, io::Write, str::FromStr};
use bdk::keys::bip39::Mnemonic;
use bdk_esplora::{esplora_client, EsploraAsyncExt};
use bdk_wallet::{
bitcoin::{Address, Amount, Network, Script},
keys::{DerivableKey, ExtendedKey},
KeychainKind, SignOptions, Wallet,
};
use bdk_sqlite::{rusqlite::Connection, Store};
use crate::{keys, utils};
const SEND_AMOUNT: Amount = Amount::from_sat(5000);
const STOP_GAP: usize = 50;
const PARALLEL_REQUESTS: usize = 5;
/// Demonstrates the use of bdk with the Esplora client.
pub async fn run() -> Result<(), anyhow::Error> {
let dave_dir = utils::home(&"dave".to_string());
let mnemonic_path = crate::utils::side_paths(dave_dir).1; // TODO: this tuple stinks
let mnemonic_words = fs::read_to_string(mnemonic_path).expect("couldn't read bitcoin key file");
println!("Creating wallet from mnemonic: {mnemonic_words}");
let mnemonic = Mnemonic::parse(mnemonic_words).unwrap();
// Generate the extended key
let xkey: ExtendedKey = mnemonic
.into_extended_key()
.expect("couldn't turn mnemonic into xkey");
let xprv = xkey
.into_xprv(Network::Signet)
.expect("problem converting xkey to xprv")
.to_string();
println!("Setting up esplora database");
let db_path = "/tmp/bdk-esplora-async-example.sqlite";
let conn = Connection::open(db_path)?;
let mut db = Store::new(conn)?;
let external_descriptor = "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/1'/0'/0/*)";
let internal_descriptor = "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/1'/0'/1/*)";
let changeset = db.read()?;
let external_descriptor = format!("wpkh({xprv}/84'/1'/0'/0/*)");
let internal_descriptor = format!("wpkh({xprv}/84'/1'/0'/1/*)");
let changeset = db.read().expect("couldn't read esplora database");
let mut wallet = Wallet::new_or_load(
external_descriptor,
internal_descriptor,
&external_descriptor,
&internal_descriptor,
changeset,
Network::Signet,
)?;
)
.expect("problem setting up wallet");
let address = wallet.next_unused_address(KeychainKind::External);
if let Some(changeset) = wallet.take_staged() {