A modern, lightweight, descriptor-based wallet library written in Rust!
The bdk libraries aims to provide well engineered and reviewed components for Bitcoin based applications.
It is built upon the excellent rust-bitcoin and rust-miniscript crates.
⚠ The Bitcoin Dev Kit developers are in the process of releasing a
v1.0which is a fundamental re-write of how the library works. See for some background on this project: https://bitcoindevkit.org/blog/road-to-bdk-1/ (ignore the timeline 😁) For a release timeline see theBDK 1.0 project page.
The project is split up into several crates in the /crates directory:
bdk: Contains the central high levelWallettype that is built from the low-level mechanisms provided by the other componentschain: Tools for storing and indexing chain datafile_store: A (experimental) persistence backend for storing chain data in a single file.esplora: Extends theesplora-clientcrate with methods to fetch chain data from an esplora HTTP server in the form thatbdk_chainandWalletcan consume.electrum: Extends theelectrum-clientcrate with methods to fetch chain data from an electrum server in the form thatbdk_chainandWalletcan consume.
Fully working examples of how to use these components are in /example-crates:
example_cli: Library used by theexample_*crates. Provides utilities for syncing, showing the balance, generating addresses and creating transactions without using the bdkWallet.example_electrum: A command line Bitcoin wallet application built on top ofexample_cliand theelectrumcrate. It shows the power of the bdk tools (chain+file_store+electrum), without depending on the mainbdklibrary.wallet_esplora_blocking: Uses theWalletto sync and spend using the Esplora blocking interface.wallet_esplora_async: Uses theWalletto sync and spend using the Esplora asynchronous interface.wallet_electrum: Uses theWalletto sync and spend using Electrum.
This library should compile with any combination of features with Rust 1.57.0.
To build with the MSRV you will need to pin dependencies as follows:
# log 0.4.19 has MSRV 1.60.0+
cargo update -p log --precise "0.4.18"
# tempfile 3.7.0 has MSRV 1.63.0+
cargo update -p tempfile --precise "3.6.0"
# rustls 0.21.7 has MSRV 1.60.0+
cargo update -p rustls:0.21.8 --precise "0.21.1"
# rustls 0.20.9 has MSRV 1.60.0+
cargo update -p rustls:0.20.9 --precise "0.20.8"
# tokio 1.33 has MSRV 1.63.0+
cargo update -p tokio --precise "1.29.1"
# tokio-util 0.7.9 doesn't build with MSRV 1.57.0
cargo update -p tokio-util --precise "0.7.8"
# flate2 1.0.27 has MSRV 1.63.0+
cargo update -p flate2 --precise "1.0.26"
# reqwest 0.11.19 has MSRV 1.63.0+
cargo update -p reqwest --precise "0.11.18"
# h2 0.3.21 has MSRV 1.63.0+
cargo update -p h2 --precise "0.3.20"
# rustls-webpki 0.100.3 has MSRV 1.60.0+
cargo update -p rustls-webpki:0.100.3 --precise "0.100.1"
# rustls-webpki 0.101.2 has MSRV 1.60.0+
cargo update -p rustls-webpki:0.101.7 --precise "0.101.1"
# zip 0.6.6 has MSRV 1.59.0+
cargo update -p zip --precise "0.6.2"
# time 0.3.14 has MSRV 1.59.0+
cargo update -p time --precise "0.3.13"
# byteorder 1.5.0 has MSRV 1.60.0+
cargo update -p byteorder --precise "1.4.3"
# webpki 0.22.4 requires `ring:0.17.2` which has MSRV 1.61.0+
cargo update -p webpki --precise "0.22.2"
# jobserver 0.1.27 has MSRV 1.66.0+
cargo update -p jobserver --precise "0.1.26"
# os_str_bytes 6.6.0 has MSRV 1.61.0+
cargo update -p os_str_bytes --precise 6.5.1
# sct 0.7.1 has MSRV 1.61.0+
cargo update -p sct --precise 0.7.0
# cc 1.0.82 has MSRV 1.61.0+
cargo update -p cc --precise "1.0.81"Licensed under either of
- Apache License, Version 2.0, (LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or https://opensource.org/licenses/MIT)
at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.