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https://github.com/paritytech/parity-bitcoin

The Parity Bitcoin client
https://github.com/paritytech/parity-bitcoin

bitcoin blockchain client node parity rust

Last synced: about 1 month ago
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The Parity Bitcoin client

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# The Parity Bitcoin client.

# THIS IS UNMAINTAINED HISTORICAL SOFTWARE

[![Build Status][travis-image]][travis-url] [![Snap Status](https://build.snapcraft.io/badge/paritytech/parity-bitcoin.svg)](https://build.snapcraft.io/user/paritytech/parity-bitcoin)

Gitter [![Gitter https://gitter.im/paritytech/parity-bitcoin](https://badges.gitter.im/paritytech/parity-bitcoin.svg)](https://gitter.im/paritytech/parity-bitcoin)

- [Installing from source](#installing-from-source)

- [Installing the snap](#installing-the-snap)

- [Running tests](#running-tests)

- [Going online](#going-online)

- [Importing bitcoind database](#importing-bitcoind-database)

- [Command line interface](#command-line-interface)

- [JSON-RPC](#json-rpc)

- [Logging](#logging)

- [Internal Documentation](#internal-documentation)

- [Project Graph][graph]

[graph]: ./tools/graph.svg
[travis-image]: https://travis-ci.com/paritytech/parity-bitcoin.svg?token=DMFvZu71iaTbUYx9UypX&branch=master
[travis-url]: https://travis-ci.com/paritytech/parity-bitcoin
[doc-url]: https://paritytech.github.io/parity-bitcoin/pbtc/index.html

## Installing from source

Installing `pbtc` from source requires `rustc` and `cargo`.

Minimal supported version is `rustc 1.23.0 (766bd11c8 2018-01-01)`

#### Install rustc and cargo

Both `rustc` and `cargo` are a part of rust tool-chain.

An easy way to install the stable binaries for Linux and Mac is to run this in your shell:

```
curl -sSf https://static.rust-lang.org/rustup.sh | sh
```

Windows binaries can be downloaded from [rust-lang website](https://www.rust-lang.org/en-US/downloads.html).

#### Install C and C++ compilers

You will need the cc and gcc compilers to build some of the dependencies.

```
sudo apt-get update
sudo apt-get install build-essential
```

#### Clone and build pbtc

Now let's clone `pbtc` and enter it's directory:

```
git clone https://github.com/paritytech/parity-bitcoin
cd parity-bitcoin
```

`pbtc` can be build in two modes. `--debug` and `--release`. Debug is the default.

```
# builds pbtc in debug mode
cargo build -p pbtc
```

```
# builds pbtc in release mode
cargo build -p pbtc --release
```

`pbtc` is now available at either `./target/debug/pbtc` or `./target/release/pbtc`.

## Installing the snap

In any of the [supported Linux distros](https://snapcraft.io/docs/core/install):

```
sudo snap install parity-bitcoin --edge
```

## Running tests

`pbtc` has internal unit tests and it conforms to external integration tests.

#### Running unit tests

Assuming that repository is already cloned, we can run unit tests with this command:

```
cargo test --all
```

#### Running external integration tests

Running integration tests is automated, as the regtests repository is one of the submodules. Let's download it first:

```
git submodule update --init
```

Now we can run them using the command:

```
./tools/regtests.sh
```

It is also possible to run regtests manually:

```
# let's start pbtc in regtest compatible mode
./target/release/pbtc --btc --regtest

# now in second shell window
cd $HOME
git clone https://github.com/TheBlueMatt/test-scripts
cd test-scripts
java -jar pull-tests-f56eec3.jar

```

## Going online

By default parity connects to bitcoind-seednodes. Full list is available [here](./pbtc/seednodes.rs).

Before starting synchronization, you must decide - which fork to follow - Bitcoin Core (`--btc` flag) or Bitcoin Cash (`--bch` flag). On next start, passing the same flag is optional, as the database is already bound to selected fork and won't be synchronized using other verification rules.

To start syncing the main network, just start the client, passing selected fork flag. For example:

```
./target/release/pbtc --btc
```

To start syncing the testnet:

```
./target/release/pbtc --btc --testnet
```

To not print any syncing progress add `--quiet` flag:

```
./target/release/pbtc --btc --quiet
```

## Importing bitcoind database

It is possible to import existing `bitcoind` database:

```
# where $BITCOIND_DB is path to your bitcoind database, e.g., "/Users/user/Library/Application Support"
./target/release/pbtc import "$BITCOIND_DB/Bitcoin/blocks"
```

By default import verifies imported the blocks. You can disable this, by adding `--verification-level=none` flag.

```
./target/release/pbtc --btc --verification-level=none import "$BITCOIND_DB/Bitcoin/blocks"
```

## Command line interface

Full list of CLI options, which is available under `pbtc --help`:

```
pbtc 0.1.0
Parity Technologies
Parity Bitcoin client

USAGE:
pbtc [FLAGS] [OPTIONS] [SUBCOMMAND]

FLAGS:
--bch Use Bitcoin Cash verification rules (BCH).
--btc Use Bitcoin Core verification rules (BTC).
-h, --help Prints help information
--no-jsonrpc Disable the JSON-RPC API server.
-q, --quiet Do not show any synchronization information in the console.
--regtest Use a private network for regression tests.
--testnet Use the test network (Testnet3).
-V, --version Prints version information

OPTIONS:
--blocknotify Execute COMMAND when the best block changes (%s in COMMAND is replaced by the block hash).
-c, --connect Connect only to the specified node.
-d, --data-dir Specify the database and configuration directory PATH.
--db-cache Sets the database cache size.
--jsonrpc-apis Specify the APIs available through the JSONRPC interface. APIS is a comma-delimited list of API names.
--jsonrpc-cors Specify CORS header for JSON-RPC API responses.
--jsonrpc-hosts List of allowed Host header values.
--jsonrpc-interface The hostname portion of the JSONRPC API server.
--jsonrpc-port Specify the PORT for the JSONRPC API server.
--only-net Only connect to nodes in network version (ipv4 or ipv6).
--port Listen for connections on PORT.
-s, --seednode Connect to a seed-node to retrieve peer addresses, and disconnect.
--verification-edge Non-default verification-level is applied until a block with given hash is met.
--verification-level Sets the Blocks verification level to full (default), header (scripts are not verified), or none (no verification at all).

SUBCOMMANDS:
help Prints this message or the help of the given subcommand(s)
import Import blocks from a Bitcoin Core database.
rollback Rollback the database to given canonical-chain block.
```

## JSON-RPC

The JSON-RPC interface is served on port :8332 for mainnet and :18332 for testnet unless you specified otherwise. So if you are using testnet, you will need to change the port in the sample curl requests shown below.

#### Network

The Parity-bitcoin `network` interface.

##### addnode

Add the node.

curl -H 'content-type: application/json' --data-binary '{"jsonrpc": "2.0", "method": "addnode", "params": ["127.0.0.1:8888", "add"], "id":1 }' localhost:8332

Remove the node.

curl -H 'content-type: application/json' --data-binary '{"jsonrpc": "2.0", "method": "addnode", "params": ["127.0.0.1:8888", "remove"], "id":1 }' localhost:8332

Connect to the node.

curl -H 'content-type: application/json' --data-binary '{"jsonrpc": "2.0", "method": "addnode", "params": ["127.0.0.1:8888", "onetry"], "id":1 }' localhost:8332

##### getaddednodeinfo

Query info for all added nodes.

curl -H 'content-type: application/json' --data-binary '{"jsonrpc": "2.0", "id":"1", "method": "getaddednodeinfo", "params": [true] }' localhost:8332

Query info for the specified node.

curl -H 'content-type: application/json' --data-binary '{"jsonrpc": "2.0", "id":"1", "method": "getaddednodeinfo", "params": [true, "192.168.0.201"] }' localhost:8332

##### getconnectioncount

Get the peer count.

curl -H 'content-type: application/json' --data-binary '{"jsonrpc": "2.0", "id":"1", "method": "getconnectioncount", "params": [] }' localhost:8332

#### Blockchain

The Parity-bitcoin `blockchain` data interface.

##### getbestblockhash

Get hash of best block.

curl -H 'content-type: application/json' --data-binary '{"jsonrpc": "2.0", "method": "getbestblockhash", "params": [], "id":1 }' localhost:8332

##### getblockcount

Get height of best block.

curl -H 'content-type: application/json' --data-binary '{"jsonrpc": "2.0", "method": "getblockcount", "params": [], "id":1 }' localhost:8332

##### getblockhash

Get hash of block at given height.

curl -H 'content-type: application/json' --data-binary '{"jsonrpc": "2.0", "method": "getblockhash", "params": [0], "id":1 }' localhost:8332

##### getdifficulty

Get proof-of-work difficulty as a multiple of the minimum difficulty

curl -H 'content-type: application/json' --data-binary '{"jsonrpc": "2.0", "method": "getdifficulty", "params": [], "id":1 }' localhost:8332

##### getblock

Get information on given block.

curl -H 'content-type: application/json' --data-binary '{"jsonrpc": "2.0", "method": "getblock", "params": ["000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"], "id":1 }' localhost:8332

##### gettxout

Get details about an unspent transaction output.

curl -H 'content-type: application/json' --data-binary '{"jsonrpc": "2.0", "method": "gettxout", "params": ["4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b", 0], "id":1 }' localhost:8332

##### gettxoutsetinfo

Get statistics about the unspent transaction output set.

curl -H 'content-type: application/json' --data-binary '{"jsonrpc": "2.0", "method": "gettxoutsetinfo", "params": [], "id":1 }' localhost:8332

#### Miner

The Parity-bitcoin `miner` data interface.

##### getblocktemplate

Get block template for mining.

curl -H 'content-type: application/json' --data-binary '{"jsonrpc": "2.0", "method": "getblocktemplate", "params": [{"capabilities": ["coinbasetxn", "workid", "coinbase/append"]}], "id":1 }' localhost:8332

#### Raw

The Parity-bitcoin `raw` data interface.

##### getrawtransaction

Return the raw transaction data.

curl -H 'content-type: application/json' --data-binary '{"jsonrpc": "2.0", "method": "getrawtransaction", "params": ["4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"], "id":1 }' localhost:8332

##### decoderawtransaction

Return an object representing the serialized, hex-encoded transaction.

curl -H 'content-type: application/json' --data-binary '{"jsonrpc": "2.0", "method": "decoderawtransaction", "params": ["01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff4d04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73ffffffff0100f2052a01000000434104678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5fac00000000"], "id":1 }' localhost:8332

##### createrawtransaction

Create a transaction spending the given inputs and creating new outputs.

curl -H 'content-type: application/json' --data-binary '{"jsonrpc": "2.0", "method": "createrawtransaction", "params": [[{"txid":"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b","vout":0}],{"1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa":0.01}], "id":1 }' localhost:8332

##### sendrawtransaction

Adds transaction to the memory pool && relays it to the peers.

curl -H 'content-type: application/json' --data-binary '{"jsonrpc": "2.0", "method": "sendrawtransaction", "params": ["01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff4d04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73ffffffff0100f2052a01000000434104678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5fac00000000"], "id":1 }' localhost:8332

## Logging

This is a section only for developers and power users.

You can enable detailed client logging by setting the environment variable `RUST_LOG`, e.g.,

```
RUST_LOG=verification=info ./target/release/pbtc --btc
```

`pbtc` started with this environment variable will print all logs coming from `verification` module with verbosity `info` or higher. Available log levels are:

- `error`
- `warn`
- `info`
- `debug`
- `trace`

It's also possible to start logging from multiple modules in the same time:

```
RUST_LOG=sync=trace,p2p=trace,verification=trace,db=trace ./target/release/pbtc --btc
```

## Internal documentation

Once released, `pbtc` documentation will be available [here][doc-url]. Meanwhile it's only possible to build it locally:

```
cd parity-bitcoin
./tools/doc.sh
open target/doc/pbtc/index.html
```