bitcoindevkit / bdk / 5834188079

    pub fn build_signed_tx<D: BatchDatabase>(

        wallet: &Wallet<D>,

        recipient_address: &str,

        amount: u64,

    ) -> Transaction {

        // Create a transaction builder

        let mut tx_builder = wallet.build_tx();

        let to_address = Address::from_str(recipient_address)

            .unwrap()

            .assume_checked();

        // Set recipient of the transaction

        tx_builder.set_recipients(vec![(to_address.script_pubkey(), amount)]);

        // Finalise the transaction and extract PSBT

        let (mut psbt, _) = tx_builder.finish().unwrap();

        // Sign the above psbt with signing option

        wallet.sign(&mut psbt, SignOptions::default()).unwrap();

        // Extract the final transaction

        psbt.extract_tx()

    }