比原链的安装方式有多种。本书从源码分析的角度带领读者了解架构，所以使用源码编译的方式来介绍安装过程。
1）下载源码：
$ git clone https://github.com/Bytom/bytom.git
mainnet：主网。 testnet：也称wisdom，测试网。 solonet：单机模式。 5）启动bytomd进程： $ ./bytomd node
$ ps -ef|grep bytomd 501 52318 449 0 2:00PM ttys000 0:00.85 ./bytomd node
$ ./bytomcli net-info { "current_block": 36714, "highest_block": 36714, "listening": true, "mining": false, "network_id": "wisdom", "peer_count": 10, "syncing": false, "version": "1.0.5+2bc2396a" } 当我们执行ps -ef命令看到bytomd进程时，说明进程已经处于运行状态。使用bytomcli获取节点状态信息，可以看到我们已经成功地运行了bytomd进程。 bytomd进程第一次启动后，默认不会开启挖矿功能。此时会从P2P网络种子节点中获取与之相邻的peer节点，建立握手连接并同步区块。我们将在第10章深入分析P2P网络底层工作原理。
比原链的源码目录如下所示： $ tree -L 1 . ├── accesstoken Token管理 ├── account 账户管理 ├── api API Server接口管理 ├── asset 资产管理 ├── blockchain 交易打包、签名、查询等 ├── cmd main入口文件 ├── common 公共库 ├── config 节点配置文件 ├── consensus 共识相关模块 ├── crypto 加密库 ├── dashboard dashboard页面管理 ├── database 数据库管理 ├── docs 文档 ├── encoding 协议相关的编解码库 ├── env 环境变量管理 ├── equity 智能合约语言编译器 ├── errors 错误及异常管理 ├── math 数学计算相关库 ├── metrics metrics指标库，用于采集API Server请求相关指标 ├── mining 挖矿模块 ├── net API Server使用的HTTP基础库 ├── netsync 网络同步管理 ├── node 当前节点管理模块，环境初始化等 ├── p2p 分布式网络管理模块 ├── protocol 核心数据结构，包含块、交易、bvm虚拟机等 ├── test 单元测试 ├── testutil 单元测试工具包 ├── util 工具包 ├── vendor 第三方库 ├── version 版本 └── wallet 钱包管理
开启挖矿模式的命令如下： $ ./bytomcli set-mining true 在默认情况下比原链的挖矿模式是关闭状态。开启挖矿模式有两种方式，第一种方式，使用bytomcli命令行交互，将mining参数设置为true，此时bytomcli会通过RPC协议与bytomd进程交互并启用挖矿模式。关闭挖矿模式则指定set-mining参数为false。第二种方式，使用dashboard页面启用挖矿参数，在这里请读者自行学习dashboard。
比原链技术社区提供了不同语言的SDK，如下所示： PHP SDK：https://github.com/lxlxw/bytom-php-sdk Java SDK：https://github.com/chainworld/java-bytom Java SDK：https://github.com/successli/Bytom-Java-SDK Python SDK：https://github.com/Bytom-Community/python-bytom Node SDK：https://github.com/Bytom/node-sdk
Official golang implementation of the Bytom protocol.
Automated builds are available for stable releases and the unstable master branch. Binary archives are published at https://github.com/Bytom/bytom/releases.
Bytom is software designed to operate and connect to highly scalable blockchain networks confirming to the Bytom Blockchain Protocol, which allows partipicants to define, issue and transfer digitial assets on a multi-asset shared ledger. Please refer to the White Paper for more details.
In the current state bytom is able to:
- Manage key, account as well as asset
- Send transactions, i.e., issue, spend and retire asset
brew tap bytom/bytom && brew install bytom
- Go version 1.8 or higher, with
$GOPATHset to your preferred directory
Ensure Go with the supported version is installed properly:
$ go version
$ go env GOROOT GOPATH- Get the source code
$ git clone https://github.com/Bytom/bytom.git $GOPATH/src/github.com/bytom/bytom- Build source code
$ cd $GOPATH/src/github.com/bytom/bytom
$ make bytomd # build bytomd
$ make bytomcli # build bytomcliWhen successfully building the project, the bytomd and bytomcli binary should be present in cmd/bytomd and cmd/bytomcli directory, respectively.
The Bytom project comes with several executables found in the cmd directory.
| Command | Description |
|---|---|
| bytomd | bytomd command can help to initialize and launch bytom domain by custom parameters. bytomd --help for command line options. |
| bytomcli | Our main Bytom CLI client. It is the entry point into the Bytom network (main-, test- or private net), capable of running as a full node archive node (retaining all historical state). It can be used by other processes as a gateway into the Bytom network via JSON RPC endpoints exposed on top of HTTP, WebSocket and/or IPC transports. bytomcli --help and the bytomcli Wiki page for command line options. |
Currently, bytom is still in active development and a ton of work needs to be done, but we also provide the following content for these eager to do something with bytom. This section won't cover all the commands of bytomd and bytomcli at length, for more information, please the help of every command, e.g., bytomcli help.
First of all, initialize the node:
$ cd ./cmd/bytomd
$ ./bytomd init --chain_id mainnetThere are three options for the flag --chain_id:
mainnet: connect to the mainnet.testnet: connect to the testnet wisdom.solonet: standalone mode.
After that, you'll see config.toml generated, then launch the node.
$ ./bytomd nodeavailable flags for bytomd node:
Flags:
--auth.disable Disable rpc access authenticate
--chain_id string Select network type
-h, --help help for node
--log_file string Log output file (default "log")
--log_level string Select log level(debug, info, warn, error or fatal)
--mining Enable mining
--p2p.dial_timeout int Set dial timeout (default 3)
--p2p.handshake_timeout int Set handshake timeout (default 30)
--p2p.keep_dial string Peers addresses try keeping connecting to, separated by ',' (for example "1.1.1.1:46657;2.2.2.2:46658")
--p2p.laddr string Node listen address. (0.0.0.0:0 means any interface, any port) (default "tcp://0.0.0.0:46656")
--p2p.lan_discoverable Whether the node can be discovered by nodes in the LAN (default true)
--p2p.max_num_peers int Set max num peers (default 50)
--p2p.node_key string Node key for p2p communication
--p2p.proxy_address string Connect via SOCKS5 proxy (eg. 127.0.0.1:1086)
--p2p.proxy_password string Password for proxy server
--p2p.proxy_username string Username for proxy server
--p2p.seeds string Comma delimited host:port seed nodes
--p2p.skip_upnp Skip UPNP configuration
--prof_laddr string Use http to profile bytomd programs
--simd.enable Enable SIMD mechan for tensority
--vault_mode Run in the offline enviroment
--wallet.disable Disable wallet
--wallet.rescan Rescan wallet
--wallet.txindex Save global tx index
--web.closed Lanch web browser or not
--ws.max_num_concurrent_reqs int Max number of concurrent websocket requests that may be processed concurrently (default 20)
--ws.max_num_websockets int Max number of websocket connections (default 25)
Global Flags:
--home string root directory for config and data
-r, --root string DEPRECATED. Use --home (default "/Users/zcc/Library/Application Support/Bytom")
--trace print out full stack trace on errors
Given the bytomd node is running, the general workflow is as follows:
- create key, then you can create account and asset.
- send transaction, i.e., build, sign and submit transaction.
- query all kinds of information, let's say, avaliable key, account, key, balances, transactions, etc.
simd feature:
You could enable the simd feature to speed up the PoW verification (e.g., during mining and block verification) by simply:
bytomd node --simd.enable
To enable this feature you will need to compile from the source code by yourself, and make bytomd-simd.
What is more,
- if you are using Mac, please make sure llvm is installed by
brew install llvm. - if you are using Windows, please make sure mingw-w64 is installed and set up the PATH environment variable accordingly.
For more details about using bytomcli command please refer to API Reference
Access the dashboard:
$ open http://localhost:9888/
Ensure your Docker version is 17.05 or higher.
$ docker build -t bytom .For the usage please refer to running-in-docker-wiki.
Thank you for considering helping out with the source code! Any contributions are highly appreciated, and we are grateful for even the smallest of fixes!
If you run into an issue, feel free to bytom issues in this repository. We are glad to help!