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bitshares / bitshares-core

BitShares Blockchain node and command-line wallet
https://bitshares.github.io/
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BitShares Core

BitShares Core is the BitShares blockchain node software and command-line wallet software. For UI reference wallet software (browser-based wallet and desktop wallet) visit BitShares UI.

Visit BitShares.github.io to learn about BitShares and join the community at BitSharesTalk.org.

Information for developers can be found in the Wiki and the BitShares Developer Portal. Users interested in how BitShares works can go to the BitShares Documentation site.

Visit Awesome BitShares to find more resources and links E.G. chat groups, client libraries and extended APIs.

Branch Build Status
master
develop
hardfork
testnet
master of bitshares-fc

Getting Started

Build instructions and additional documentation are available in the Wiki.

Prebuilt binaries can be found in the releases page for download.

Installing Node and Command-Line Wallet Software

We recommend building on Ubuntu 20.04 LTS (64-bit)

Install Operating System Dependencies:

sudo apt-get update
sudo apt-get install autoconf cmake make automake libtool git libboost-all-dev libssl-dev g++ libcurl4-openssl-dev doxygen

Build Node And Command-Line Wallet:

git clone https://github.com/bitshares/bitshares-core.git
cd bitshares-core
git checkout master # may substitute "master" with current release tag
git submodule update --init --recursive
mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Release ..
make

Upgrade Node And Command-Line Wallet:

cd bitshares-core
git remote set-url origin https://github.com/bitshares/bitshares-core.git
git checkout master
git remote set-head origin --auto
git pull
git submodule update --init --recursive # this command may fail
git submodule sync --recursive
git submodule update --init --recursive
mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Release ..
make

NOTE:

Running and Stopping Node Software

Run Node Software:

Stay on bitshares-core/build directory before you run the below witness_node command

./programs/witness_node/witness_node

Under build directory the node run will automatically create the directory witness_node_data_dir along with config files underneath then start synchronizing the blockchain. It may take usually several hours to fully synchronize the blockchain data. The blockchain data will be stored under the directory witness_node_data_dir.

Stop Node Software:

For stopping the node run cleanly, you will need to access the node run terminal then press on Ctrl+C then wait for the run to stop, please note that it may take usually few minutes to exit the run. It's recommended to use linux command screen to initiate the node run so you can go back to the node run screen to stop it.

IMPORTANT: By default the node will start in reduced memory mode by using some of the commands detailed in Memory reduction for nodes. In order to run a full node with all the account histories which usually unnecessary, you need to remove partial-operations and max-ops-per-account from your config file. Please note that currently(2018-10-17) a full node will need more than 160GB of RAM to operate and required memory is growing fast. Consider the following table as minimal requirements before running a node:

Default Full Minimal ElasticSearch
150G HDD, 16G RAM 640G SSD, 64G RAM * 120G HDD, 4G RAM 1TB SSD, 32G RAM

* For this setup, allocate at least 500GB of SSD as swap.

To use the command-line wallet or other wallets / clients with the node, the node need to be started with RPC connection enabled, which can be done by starting the node with the --rpc-endpoint parameter, E.G.

./programs/witness_node/witness_node --rpc-endpoint=127.0.0.1:8090

or configure it in the config file by editing witness_node_data_dir/config.ini as follows:

rpc-endpoint = 127.0.0.1:8090

You can run the program with --help parameter to see more info:

./programs/witness_node/witness_node --help

Using Command-Line Wallet

Stay on bitshares-core/build directory before you run the below cli_wallet command

./programs/cli_wallet/cli_wallet

IMPORTANT: The cli_wallet or API interfaces to the node wouldn't be fully functional unless the node is fully synchronized with the blockchain. The cli_wallet command info will show result head_block_age which will tell you how far you are from the live current block of the blockchain.

To check your current block:

new >>> info

To query the blockchain, E.G. get info about an account:

new >>> get_account <account_name_or_id>

If you need to transact with your account but not only query, firstly set your initial password and unlock the wallet:

To be able to transact with your account, import the corresponding private keys:

unlocked >>> import_key <ACCOUNT_NAME> <WIF_KEY>

The private keys will be encrypted and stored in the wallet file, the file name is wallet.json by default. The private keys are accessible when the wallet is unlocked.

unlocked >>> dump_private_keys

Use lock command to make the private keys inaccessible. There is no auto-lock feature so far.

unlocked >>> lock

To import your initial (genesis) balances, import the private keys corresponding to the balances:

unlocked >>> import_balance <ACCOUNT_NAME> [<WIF_KEY> ...] true

Use help to see all available wallet commands.

>>> help

Use gethelp <COMMAND> to see more info about individual commands. E.G.

>>> gethelp get_order_book

The definition of all commands is available in the wallet.hpp source code file. Corresponding documentation can be found in the Doxygen documentation.

You can run the program with --help parameter to see more info:

./programs/cli_wallet/cli_wallet --help

There is also some info in the Wiki.

Support

Technical support is available in the BitSharesTalk technical support subforum.

BitShares Core bugs can be reported directly to the issue tracker.

Questions can be posted in Github Discussions.

BitShares UI bugs should be reported to the UI issue tracker.

Up to date online Doxygen documentation can be found at https://bitshares.github.io/doxygen.

Using Built-In APIs

Node API

The witness_node software provides several different API sets, known as node API.

Each API set has its own ID and a name. When running witness_node with RPC connection enabled, initially two API sets are available:

Here is an example using wscat package from npm for websockets:

$ npm install -g wscat
$ wscat -c ws://127.0.0.1:8090
> {"id":1, "method":"call", "params":[0,"get_accounts",[["1.2.0"]]]}
< {"id":1,"result":[{"id":"1.2.0","annotations":[],"membership_expiration_date":"1969-12-31T23:59:59","registrar":"1.2.0","referrer":"1.2.0","lifetime_referrer":"1.2.0","network_fee_percentage":2000,"lifetime_referrer_fee_percentage":8000,"referrer_rewards_percentage":0,"name":"committee-account","owner":{"weight_threshold":1,"account_auths":[],"key_auths":[],"address_auths":[]},"active":{"weight_threshold":6,"account_auths":[["1.2.5",1],["1.2.6",1],["1.2.7",1],["1.2.8",1],["1.2.9",1],["1.2.10",1],["1.2.11",1],["1.2.12",1],["1.2.13",1],["1.2.14",1]],"key_auths":[],"address_auths":[]},"options":{"memo_key":"GPH1111111111111111111111111111111114T1Anm","voting_account":"1.2.0","num_witness":0,"num_committee":0,"votes":[],"extensions":[]},"statistics":"2.7.0","whitelisting_accounts":[],"blacklisting_accounts":[]}]}

We can do the same thing using an HTTP client such as curl for APIs which do not require login or other session state:

$ curl --data '{"jsonrpc": "2.0", "method": "call", "params": [0, "get_accounts", [["1.2.0"]]], "id": 1}' http://127.0.0.1:8090/
{"id":1,"result":[{"id":"1.2.0","annotations":[],"membership_expiration_date":"1969-12-31T23:59:59","registrar":"1.2.0","referrer":"1.2.0","lifetime_referrer":"1.2.0","network_fee_percentage":2000,"lifetime_referrer_fee_percentage":8000,"referrer_rewards_percentage":0,"name":"committee-account","owner":{"weight_threshold":1,"account_auths":[],"key_auths":[],"address_auths":[]},"active":{"weight_threshold":6,"account_auths":[["1.2.5",1],["1.2.6",1],["1.2.7",1],["1.2.8",1],["1.2.9",1],["1.2.10",1],["1.2.11",1],["1.2.12",1],["1.2.13",1],["1.2.14",1]],"key_auths":[],"address_auths":[]},"options":{"memo_key":"GPH1111111111111111111111111111111114T1Anm","voting_account":"1.2.0","num_witness":0,"num_committee":0,"votes":[],"extensions":[]},"statistics":"2.7.0","whitelisting_accounts":[],"blacklisting_accounts":[]}]}

When using an HTTP client, the API set ID can be replaced by the API set name, E.G.

$ curl --data '{"jsonrpc": "2.0", "method": "call", "params": ["database", "get_accounts", [["1.2.0"]]], "id": 1}' http://127.0.0.1:8090/

The definition of all node APIs is available in the source code files including database_api.hpp and api.hpp. Corresponding documentation can be found in Doxygen:

Wallet API

The cli_wallet program can also be configured to serve all of its commands as APIs, known as wallet API.

Start cli_wallet with RPC connection enabled:

$ ./programs/cli_wallet/cli_wallet --rpc-http-endpoint=127.0.0.1:8093

Access the wallet API using an HTTP client:

$ curl --data '{"jsonrpc": "2.0", "method": "info", "params": [], "id": 1}' http://127.0.0.1:8093/
$ curl --data '{"jsonrpc": "2.0", "method": "get_account", "params": ["1.2.0"], "id": 1}' http://127.0.0.1:8093/

Note: The syntax to access wallet API is a bit different than accessing node API.

Important:

Accessing restrictable node API sets

You can restrict node API sets to particular users by specifying an api-access file in config.ini or by using the --api-access /full/path/to/api-access.json command-line option on node startup. Here is an example api-access file which allows user bytemaster with password supersecret to access four different API sets, while allowing any other user to access the three public API sets necessary to use the node:

{
   "permission_map" :
   [
      [
         "bytemaster",
         {
            "password_hash_b64" : "9e9GF7ooXVb9k4BoSfNIPTelXeGOZ5DrgOYMj94elaY=",
            "password_salt_b64" : "INDdM6iCi/8=",
            "allowed_apis" : ["database_api", "network_broadcast_api", "history_api", "network_node_api"]
         }
      ],
      [
         "*",
         {
            "password_hash_b64" : "*",
            "password_salt_b64" : "*",
            "allowed_apis" : ["database_api", "network_broadcast_api", "history_api"]
         }
      ]
   ]
}

Note: the login API set is always accessible.

Passwords are stored in base64 as salted sha256 hashes. A simple Python script, saltpass.py is available to obtain hash and salt values from a password. A single asterisk "*" may be specified as username or password hash to accept any value.

With the above configuration, here is an example of how to call the add_node API from the network_node API set:

{"id":1, "method":"call", "params":[1,"login",["bytemaster", "supersecret"]]}
{"id":2, "method":"call", "params":[1,"network_node",[]]}
{"id":3, "method":"call", "params":[2,"add_node",["127.0.0.1:9090"]]}

Note, the call to network_node is necessary to obtain the correct API set ID for the network_node API set. It is not guaranteed that the API set ID for the network_node API set will always be 2.

The restricted API sets are accessible via HTTP too using basic access authentication. E.G.

$ curl --data '{"jsonrpc": "2.0", "method": "call", "params": ["network_node", "add_node", ["127.0.0.1:9090"]], "id": 1}' http://bytemaster:supersecret@127.0.0.1:8090/

Our doxygen documentation contains the most up-to-date information about APIs for the node and the wallet.

FAQ

License

BitShares Core is under the MIT license. See LICENSE for more information.