Bitcoin blockchain indexing and wallet notification node. It may be considered Electrum server or Esplora replacement, being faster, providing modern binary API, supporting wallet descriptors, LN-specific queries, client-side-validation tech like RGB, modern publication-subscribe interfaces, Noise encryption in network connectivity, asymmetric cryptographic client authentication and many more.
The node designed and implemented by Dr Maxim Orlovsky from Pandora Prime and @will-bitlightlabs from Bitlight Labs as a part of LNP/BP Labs effort on building the foundation for LNP/BP layer 2 and 3 bitcoin application ecosystem. It is based on other LNP/BP projects such as BP Core Lib, BP Standard Lib, BP Wallet Lib and can be easily integrated with the rest of LNP/BP nodes like LNP Node.
In the future it is planned to upgrade the node into a fully-validating bitcoin node by using
bitcoinkernel library for validating blocks.
This repository contains the following crates:
bp-node: main indexing daemon, which can be used as an embedded multi-thread service, or compiled into a standalone binary (bpd);bp-client: client to work with the daemon and a command-line utilitybp-cli;bp-rpc: a shared crate betweenbp-nodeandbp-client.
The node operates as a set of threads, communicating through Crossbeam channels.
It leverages microservices.rs and netservices.rs crates,
which serves as the node non-blocking reactor-based (see io-reactor) microservice frameworks.
The node daemon has the following components:
- Broker, integrating all services and managing their communications;
- RPC: reactor-based thread managing incoming client connections, notifying them about changes to the subscribed information;
- Persistence, an embedded ReDB database;
- Block importer: a client connecting an integration service (see below) to bitcoin blockchain provider (Bitcoin Core, other Bitcoin nodes or indexers) receiving downloaded and new blocks and adding them into the database;
- Query workers, thread pool running queries for the client subscriptions in the database.
To operate, one also needs to provide the node with an interface to bitcoin blocks integrating it with either Bitcoin Core, or any other node or indexer.
By default, the node exposes a binary RPC API over TCP, which can be exposed as more high-level APIs (HTTP REST, Websocket-based or JSON-RPC) using special adaptor services.
The project currently supports Linux, macOS and UNIX.
Windows support is a work-in-progress, requiring downstream io-reactor framework changes.