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| 1 | +use bdk::{ |
| 2 | + bitcoin::{Address, Network}, |
| 3 | + wallet::{AddressIndex, Wallet}, |
| 4 | + SignOptions, |
| 5 | +}; |
| 6 | +use bdk_bitcoind_rpc::{ |
| 7 | + bitcoincore_rpc::{Auth, Client, RpcApi}, |
| 8 | + Emitter, |
| 9 | +}; |
| 10 | +use bdk_file_store::Store; |
| 11 | +use std::str::FromStr; |
| 12 | + |
| 13 | +const DB_MAGIC: &str = "bdk-rpc-wallet-example"; |
| 14 | +const SEND_AMOUNT: u64 = 5000; |
| 15 | + |
| 16 | +fn main() -> Result<(), Box<dyn std::error::Error>> { |
| 17 | + let args = std::env::args().collect::<Vec<_>>(); |
| 18 | + let db_path = std::env::temp_dir().join("bdk-rpc-example"); |
| 19 | + let db = Store::<bdk::wallet::ChangeSet>::open_or_create_new(DB_MAGIC.as_bytes(), db_path)?; |
| 20 | + |
| 21 | + let external_descriptor = "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/1'/0'/0/*)"; |
| 22 | + let internal_descriptor = "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/1'/0'/1/*)"; |
| 23 | + |
| 24 | + if args.len() < 6 { |
| 25 | + println!("Usage: wallet_rpc <RPC_URL> <RPC_USER> <RPC_PASS> <LOOKAHEAD> <FALLBACK_HEIGHT>"); |
| 26 | + std::process::exit(1); |
| 27 | + } |
| 28 | + |
| 29 | + let mut wallet = Wallet::new( |
| 30 | + external_descriptor, |
| 31 | + Some(internal_descriptor), |
| 32 | + db, |
| 33 | + Network::Testnet, |
| 34 | + )?; |
| 35 | + |
| 36 | + let address = wallet.try_get_address(AddressIndex::New)?; |
| 37 | + println!("Generated Address: {}", address); |
| 38 | + |
| 39 | + let balance = wallet.get_balance(); |
| 40 | + println!("Wallet balance before syncing: {} sats", balance.total()); |
| 41 | + |
| 42 | + let rpc_client = Client::new(&args[1], Auth::UserPass(args[2].clone(), args[3].clone()))?; |
| 43 | + |
| 44 | + println!( |
| 45 | + "Connected to Bitcoin Core RPC at {:?}", |
| 46 | + rpc_client.get_blockchain_info().unwrap() |
| 47 | + ); |
| 48 | + |
| 49 | + let chain_tip = wallet.latest_checkpoint(); |
| 50 | + let mut emitter = Emitter::new(&rpc_client, chain_tip, args[5].parse::<u32>()?); |
| 51 | + |
| 52 | + while let Some((height, block)) = emitter.next_block()? { |
| 53 | + println!("Applying block {} at height {}", block.block_hash(), height); |
| 54 | + wallet.apply_block(block, height)?; |
| 55 | + wallet.commit()?; |
| 56 | + } |
| 57 | + |
| 58 | + let unconfirmed_txs = emitter.mempool()?; |
| 59 | + println!("Applying unconfirmed transactions: ..."); |
| 60 | + wallet.process_unconfirmed_txs(unconfirmed_txs.iter().map(|(tx, time)| (tx, *time))); |
| 61 | + wallet.commit()?; |
| 62 | + |
| 63 | + let balance = wallet.get_balance(); |
| 64 | + println!("Wallet balance after syncing: {} sats", balance.total()); |
| 65 | + |
| 66 | + if balance.total() < SEND_AMOUNT { |
| 67 | + println!( |
| 68 | + "Please send at least {} sats to the receiving address", |
| 69 | + SEND_AMOUNT |
| 70 | + ); |
| 71 | + std::process::exit(1); |
| 72 | + } |
| 73 | + |
| 74 | + let faucet_address = Address::from_str("tb1qw2c3lxufxqe2x9s4rdzh65tpf4d7fssjgh8nv6")? |
| 75 | + .require_network(Network::Testnet)?; |
| 76 | + |
| 77 | + let mut tx_builder = wallet.build_tx(); |
| 78 | + tx_builder |
| 79 | + .add_recipient(faucet_address.script_pubkey(), SEND_AMOUNT) |
| 80 | + .enable_rbf(); |
| 81 | + |
| 82 | + let mut psbt = tx_builder.finish()?; |
| 83 | + let finalized = wallet.sign(&mut psbt, SignOptions::default())?; |
| 84 | + assert!(finalized); |
| 85 | + |
| 86 | + let tx = psbt.extract_tx(); |
| 87 | + rpc_client.send_raw_transaction(&tx)?; |
| 88 | + println!("Tx broadcasted! Txid: {}", tx.txid()); |
| 89 | + |
| 90 | + Ok(()) |
| 91 | +} |
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