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Sync a Wallet with Esplora

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This page is up-to-date with version 1.0.0-alpha.13 of bdk.

Add required bdk dependencies to your Cargo.toml file

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[dependencies]
bdk = { version = "=1.0.0-beta.1" }
bdk_esplora = { version = "=0.16.0", features = ["blocking"] }

Create and sync the wallet

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use bdk_wallet::AddressInfo;
use bdk_wallet::KeychainKind;
use bdk_wallet::bitcoin::Network;
use bdk_wallet::Wallet;
use bdk_esplora::EsploraExt;
use bdk_esplora::esplora_client::Builder;

const STOP_GAP: usize = 50;
const PARALLEL_REQUESTS: usize = 1;
const EXTERNAL_DESCRIPTOR: &str = "tr(tprv8ZgxMBicQKsPdrjwWCyXqqJ4YqcyG4DmKtjjsRt29v1PtD3r3PuFJAjWytzcvSTKnZAGAkPSmnrdnuHWxCAwy3i1iPhrtKAfXRH7dVCNGp6/86'/1'/0'/0/*)#g9xn7wf9";
const INTERNAL_DESCRIPTOR: &str = "tr(tprv8ZgxMBicQKsPdrjwWCyXqqJ4YqcyG4DmKtjjsRt29v1PtD3r3PuFJAjWytzcvSTKnZAGAkPSmnrdnuHWxCAwy3i1iPhrtKAfXRH7dVCNGp6/86'/1'/0'/1/*)#e3rjrmea";

fn main() -> () {
    let mut wallet: Wallet = Wallet::create(EXTERNAL_DESCRIPTOR, INTERNAL_DESCRIPTOR)
        .network(Network::Signet)
        .create_wallet_no_persist()
        .unwrap();

    let address: AddressInfo = wallet.reveal_next_address(KeychainKind::External);
    println!("Generated address {} at index {}", address.address, address.index);

    // Create the Esplora client
    let client = Builder::new("http://signet.bitcoindevkit.net").build_blocking();

    // Perform the initial full scan on the wallet
    let full_scan_request = wallet.start_full_scan();
    let mut update = client.full_scan(full_scan_request, STOP_GAP, PARALLEL_REQUESTS).unwrap();
    let now = std::time::UNIX_EPOCH.elapsed().unwrap().as_secs();
    let _ = update.graph_update.update_last_seen_unconfirmed(now);
    wallet.apply_update(update).unwrap();

    let balance = wallet.balance();
    println!("Wallet balance: {} sat", balance.total().to_sat());
}