mirror of
https://github.com/RoboSats/taptrade-core.git
synced 2025-07-24 11:43:22 +00:00
testnet faucet comment
This commit is contained in:
f321x
@ -9,7 +9,7 @@ bitcoin = "0.32.2"
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miniscript = "12.0.0"
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axum = { version = "0.7.5", features = ["tokio", "json"] }
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# "use-esplora-async", "async-interface", for async esplora
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bdk = { version = "0.29.0", default-features = false, features = ["key-value-db", "bitcoinconsensus", "std", "electrum","use-esplora-ureq","compiler", "verify"] }
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bdk = { version = "0.29.0", default-features = false, features = ["key-value-db", "bitcoinconsensus", "std", "electrum", "use-esplora-ureq","compiler", "verify"] }
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# bitcoinconsensus = "0.106.0"
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dotenv = "0.15.0"
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@ -2,167 +2,192 @@
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/// It includes functions to combine and broadcast the partially signed transactions (PSBTs)
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/// from multiple participants, create a Taproot script descriptor, create a PSBT from the
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/// descriptor, and handle the case when the taker is unresponsive.
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use bdk::bitcoin::address::NetworkUnchecked;
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use bitcoin::address::NetworkChecked;
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use bitcoin::Address;
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use bdk::descriptor::Descriptor;
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use bdk::miniscript::psbt::PsbtExt;
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use bdk::bitcoin::psbt::PartiallySignedTransaction;
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use bdk::blockchain::EsploraBlockchain;
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use bdk::SignOptions;
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use bdk::bitcoin::secp256k1::Secp256k1;
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use bdk::blockchain::EsploraBlockchain;
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use bdk::database::MemoryDatabase;
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use bdk::descriptor::Descriptor;
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use bdk::miniscript::descriptor::TapTree;
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use bdk::miniscript::policy::Concrete;
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use std::sync::Arc;
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use bdk::database::MemoryDatabase;
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use bdk::miniscript::psbt::PsbtExt;
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use bdk::wallet::AddressIndex;
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use bdk::{FeeRate, Wallet, KeychainKind, SyncOptions};
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use bdk::SignOptions;
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use bdk::{FeeRate, KeychainKind, SyncOptions, Wallet};
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use bitcoin::address::NetworkChecked;
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use bitcoin::Address;
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use std::collections::BTreeMap;
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use std::str::FromStr;
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use std::sync::Arc;
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/// The main function in this module is `combine_and_broadcast`, which combines the PSBTs
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/// from the maker and taker, finalizes the transaction, and broadcasts it on the blockchain.
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pub async fn combine_and_broadcast() -> Result<(), Box<dyn std::error::Error>> {
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let mut base_psbt = PartiallySignedTransaction::from_str("TODO: insert the psbt created in step 3 here")?;
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let signed_psbts = vec![
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// TODO: Paste each participant's PSBT here
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"makers_psbt",
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"takers_psbt",
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];
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let mut base_psbt =
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PartiallySignedTransaction::from_str("TODO: insert the psbt created in step 3 here")?;
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let signed_psbts = vec![
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// TODO: Paste each participant's PSBT here
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"makers_psbt",
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"takers_psbt",
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];
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for psbt in signed_psbts {
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let psbt = PartiallySignedTransaction::from_str(psbt)?;
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base_psbt.combine(psbt)?;
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}
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for psbt in signed_psbts {
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let psbt = PartiallySignedTransaction::from_str(psbt)?;
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base_psbt.combine(psbt)?;
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}
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let secp = Secp256k1::new();
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let psbt = base_psbt.finalize(&secp).unwrap();
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let finalized_tx = psbt.extract_tx();
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dbg!(finalized_tx.txid());
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let secp = Secp256k1::new();
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let psbt = base_psbt.finalize(&secp).unwrap();
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let finalized_tx = psbt.extract_tx();
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dbg!(finalized_tx.txid());
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let blockchain = EsploraBlockchain::new("https://blockstream.info/testnet/api", 20);
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dbg!(blockchain.broadcast(&finalized_tx));
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Ok(())
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let blockchain = EsploraBlockchain::new("https://blockstream.info/testnet/api", 20);
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dbg!(blockchain.broadcast(&finalized_tx));
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Ok(())
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}
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/// Other functions include `create_script`, which creates a Taproot script descriptor from
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async fn create_script(coordinator_key: &str, maker_key:&str, taker_key:&str ) -> Result<(bdk::descriptor::Descriptor<std::string::String>), Box<dyn std::error::Error>> {
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async fn create_script(
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coordinator_key: &str,
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maker_key: &str,
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taker_key: &str,
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) -> Result<(bdk::descriptor::Descriptor<std::string::String>), Box<dyn std::error::Error>> {
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// let maker_key = "020202020202020202020202020202020202020202020202020202020202020202";
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// let taker_key = "03833be68fb7559c0e62ffdbb6d46cc44a58c19c6ba82e51144b583cff0519c791";
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// let coordinator_key = "03b2f6e8abf3624f8e9b93f7b2567b158c15b0f20ab368f9fcb2d9251d6a788d09";
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// let maker_key = "020202020202020202020202020202020202020202020202020202020202020202";
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// let taker_key = "03833be68fb7559c0e62ffdbb6d46cc44a58c19c6ba82e51144b583cff0519c791";
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// let coordinator_key = "03b2f6e8abf3624f8e9b93f7b2567b158c15b0f20ab368f9fcb2d9251d6a788d09";
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// Define policies based on the scripts provided
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let script_a = format!(
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"and(and(after(escrow_timer),pk({})),pk({}))",
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maker_key, coordinator_key
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);
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let script_b = format!(
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"and_v(v:pk({}),and_v(v:pk({}),pk({})))",
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maker_key, taker_key, coordinator_key
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);
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let script_c = format!("and(pk({}),pk({}))", maker_key, coordinator_key);
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let script_d = format!("and(pk({}),pk({}))", taker_key, coordinator_key);
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let script_e = format!("and(pk({}),after(very_long_timelock))", maker_key);
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let script_f = format!(
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"and_v(and_v(v:pk({}),v:pk({})),after(2048))",
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maker_key, taker_key
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);
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// Define policies based on the scripts provided
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let script_a = format!("and(and(after(escrow_timer),pk({})),pk({}))", maker_key, coordinator_key);
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let script_b = format!("and_v(v:pk({}),and_v(v:pk({}),pk({})))", maker_key, taker_key, coordinator_key);
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let script_c = format!("and(pk({}),pk({}))", maker_key, coordinator_key);
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let script_d = format!("and(pk({}),pk({}))", taker_key, coordinator_key);
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let script_e = format!("and(pk({}),after(very_long_timelock))", maker_key);
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let script_f = format!("and_v(and_v(v:pk({}),v:pk({})),after(2048))", maker_key, taker_key);
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// Compile the policies
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let compiled_a = Concrete::<String>::from_str(&script_a)?.compile()?;
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let compiled_b = Concrete::<String>::from_str(&script_b)?.compile()?;
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let compiled_c = Concrete::<String>::from_str(&script_c)?.compile()?;
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let compiled_d = Concrete::<String>::from_str(&script_d)?.compile()?;
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let compiled_e = Concrete::<String>::from_str(&script_e)?.compile()?;
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let compiled_f = Concrete::<String>::from_str(&script_f)?.compile()?;
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// Compile the policies
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let compiled_a = Concrete::<String>::from_str(&script_a)?.compile()?;
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let compiled_b = Concrete::<String>::from_str(&script_b)?.compile()?;
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let compiled_c = Concrete::<String>::from_str(&script_c)?.compile()?;
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let compiled_d = Concrete::<String>::from_str(&script_d)?.compile()?;
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let compiled_e = Concrete::<String>::from_str(&script_e)?.compile()?;
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let compiled_f = Concrete::<String>::from_str(&script_f)?.compile()?;
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// Create TapTree leaves
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let tap_leaf_a = TapTree::Leaf(Arc::new(compiled_a));
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let tap_leaf_b = TapTree::Leaf(Arc::new(compiled_b));
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let tap_leaf_c = TapTree::Leaf(Arc::new(compiled_c));
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let tap_leaf_d = TapTree::Leaf(Arc::new(compiled_d));
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let tap_leaf_e = TapTree::Leaf(Arc::new(compiled_e));
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let tap_leaf_f = TapTree::Leaf(Arc::new(compiled_f));
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// Create TapTree leaves
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let tap_leaf_a = TapTree::Leaf(Arc::new(compiled_a));
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let tap_leaf_b = TapTree::Leaf(Arc::new(compiled_b));
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let tap_leaf_c = TapTree::Leaf(Arc::new(compiled_c));
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let tap_leaf_d = TapTree::Leaf(Arc::new(compiled_d));
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let tap_leaf_e = TapTree::Leaf(Arc::new(compiled_e));
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let tap_leaf_f = TapTree::Leaf(Arc::new(compiled_f));
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// Create the TapTree (example combining leaves, adjust as necessary)
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let tap_tree = TapTree::Tree(Arc::new(tap_leaf_a), Arc::new(tap_leaf_b));
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// Create the TapTree (example combining leaves, adjust as necessary)
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let tap_tree = TapTree::Tree(Arc::new(tap_leaf_a), Arc::new(tap_leaf_b));
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// Define a dummy internal key (replace with an actual key)
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let dummy_internal_key =
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"020202020202020202020202020202020202020202020202020202020202020202".to_string();
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// Define a dummy internal key (replace with an actual key)
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let dummy_internal_key = "020202020202020202020202020202020202020202020202020202020202020202".to_string();
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// Create the descriptor
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let descriptor = Descriptor::new_tr(dummy_internal_key, Some(tap_tree))?;
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println!("{}", descriptor);
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Ok(descriptor)
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// Create the descriptor
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let descriptor = Descriptor::new_tr(dummy_internal_key, Some(tap_tree))?;
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println!("{}", descriptor);
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Ok(descriptor)
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}
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/// the provided keys, and `create_psbt`, which creates a PSBT from the descriptor
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/// Figure out how to put UTXO's
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pub async fn create_psbt(descriptor: Descriptor<String>)-> Result<(PartiallySignedTransaction), Box<dyn std::error::Error>> {
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// Step 1: Create a BDK wallet
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let wallet = Wallet::new(
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// TODO: insert your descriptor here
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"tr(youshouldputyourdescriptorhere)",
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None,
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bdk::bitcoin::Network::Testnet,
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MemoryDatabase::new()
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)?;
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pub async fn create_psbt(
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descriptor: Descriptor<String>,
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) -> Result<(PartiallySignedTransaction), Box<dyn std::error::Error>> {
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// Step 1: Create a BDK wallet
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let wallet = Wallet::new(
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// TODO: insert your descriptor here
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"tr(youshouldputyourdescriptorhere)",
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None,
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bdk::bitcoin::Network::Testnet,
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MemoryDatabase::new(),
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)?;
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// Step 2: Print the first address
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println!("Deposit funds here: {:?}", wallet.get_address(AddressIndex::New)?);
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// Step 2: Print the first address
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println!(
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"Deposit funds here: {:?}",
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wallet.get_address(AddressIndex::New)?
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);
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// Step 3: Deposit funds
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// Use some testnet faucet, such as https://bitcoinfaucet.uo1.net/send.php
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// Step 3: Deposit funds
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// Use some testnet faucet, such as https://bitcoinfaucet.uo1.net/send.php
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// https://coinfaucet.eu/en/btc-testnet4/
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// Step 4: Print balance
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let blockchain = EsploraBlockchain::new("https://blockstream.info/testnet/api", 20);
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wallet.sync(&blockchain, SyncOptions::default())?;
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println!("{:#?}", wallet.get_balance()?);
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// Step 4: Print balance
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let blockchain = EsploraBlockchain::new("https://blockstream.info/testnet/api", 20);
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wallet.sync(&blockchain, SyncOptions::default())?;
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println!("{:#?}", wallet.get_balance()?);
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let maker_utxos = vec![/* UTXO details here */];
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let taker_utxos = vec![/* UTXO details here */];
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let maker_utxos = vec![/* UTXO details here */];
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let taker_utxos = vec![/* UTXO details here */];
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//TODO: Change type to NetworkChecked
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// Recipient address (where funds will be sent)
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let recipient_address = Address::from_str("tb1ql7w62elx9ucw4pj5lgw4l028hmuw80sndtntxt")?;
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//TODO: Change type to NetworkChecked
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// Recipient address (where funds will be sent)
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let recipient_address = Address::from_str("tb1ql7w62elx9ucw4pj5lgw4l028hmuw80sndtntxt")?;
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// Build the PSBT
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let mut tx_builder = wallet.build_tx();
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tx_builder
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.add_utxos(&maker_utxos)?
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.add_utxos(&taker_utxos)?
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.drain_wallet()
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.drain_to(recipient_address.script_pubkey())
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.fee_rate(FeeRate::from_sat_per_vb(3.0))
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.policy_path(BTreeMap::new(), KeychainKind::External);
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// Build the PSBT
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let mut tx_builder = wallet.build_tx();
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tx_builder
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.add_utxos(&maker_utxos)?
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.add_utxos(&taker_utxos)?
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.drain_wallet()
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.drain_to(recipient_address.script_pubkey())
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.fee_rate(FeeRate::from_sat_per_vb(3.0))
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.policy_path(BTreeMap::new(), KeychainKind::External);
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let (psbt, tx_details) = tx_builder.finish()?;
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println!("PSBT: {:?}", psbt);
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Ok(psbt)
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let (psbt, tx_details) = tx_builder.finish()?;
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println!("PSBT: {:?}", psbt);
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Ok(psbt)
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}
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/// The `taker_unresponsive` function handles the case when the taker is unresponsive and
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/// the coordinator needs to sign the PSBT using an alternative path.
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// TODO: Figure out how to use UTXO's
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fn taker_unresponsive(psbt: PartiallySignedTransaction, wallet: Wallet<MemoryDatabase>, maker_utxos: Vec<UTXO>, taker_utxos: Vec<UTXO>, recipient_address: Address<NetworkChecked>) -> Result<(), Box<dyn std::error::Error>> {
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// Maker signs the PSBT
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let maker_signed_psbt = wallet.sign(&mut psbt.clone(), SignOptions::default())?;
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println!("Maker signed PSBT: {:?}", maker_signed_psbt);
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fn taker_unresponsive(
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psbt: PartiallySignedTransaction,
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wallet: Wallet<MemoryDatabase>,
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maker_utxos: Vec<UTXO>,
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taker_utxos: Vec<UTXO>,
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recipient_address: Address<NetworkChecked>,
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) -> Result<(), Box<dyn std::error::Error>> {
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// Maker signs the PSBT
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let maker_signed_psbt = wallet.sign(&mut psbt.clone(), SignOptions::default())?;
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println!("Maker signed PSBT: {:?}", maker_signed_psbt);
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// If taker is unresponsive, coordinator signs using alternative path
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let taker_responsive = false; // Assume taker is unresponsive
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if !taker_responsive {
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let mut path = BTreeMap::new();
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path.insert(wallet.policies(KeychainKind::External)?.unwrap().id, vec![1]); // Path for coordinator and maker
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// If taker is unresponsive, coordinator signs using alternative path
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let taker_responsive = false; // Assume taker is unresponsive
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if !taker_responsive {
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let mut path = BTreeMap::new();
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path.insert(
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wallet.policies(KeychainKind::External)?.unwrap().id,
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vec![1],
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); // Path for coordinator and maker
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let mut coordinator_tx_builder = wallet.build_tx();
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coordinator_tx_builder
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.add_utxos(&maker_utxos)?
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.add_utxos(&taker_utxos)?
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.drain_wallet()
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.drain_to(recipient_address.script_pubkey())
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.fee_rate(FeeRate::from_sat_per_vb(3.0))
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.policy_path(path, KeychainKind::External);
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let mut coordinator_tx_builder = wallet.build_tx();
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coordinator_tx_builder
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.add_utxos(&maker_utxos)?
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.add_utxos(&taker_utxos)?
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.drain_wallet()
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.drain_to(recipient_address.script_pubkey())
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.fee_rate(FeeRate::from_sat_per_vb(3.0))
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.policy_path(path, KeychainKind::External);
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let (coordinator_psbt, _details) = coordinator_tx_builder.finish()?;
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let coordinator_signed_psbt = wallet.sign(&mut coordinator_psbt, SignOptions::default())?;
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println!("Coordinator signed PSBT: {:?}", coordinator_signed_psbt);
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}
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Ok(())
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}
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let (coordinator_psbt, _details) = coordinator_tx_builder.finish()?;
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let coordinator_signed_psbt = wallet.sign(&mut coordinator_psbt, SignOptions::default())?;
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println!("Coordinator signed PSBT: {:?}", coordinator_signed_psbt);
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}
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Ok(())
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}
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