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在处理项目时，用 Java Connector for EOS 区块链编写：
创建钱包
创建帐户
创建交易
创建签名交易
在帐户之间转移代币
我遇到了各种和运行本地 EOS 节点需要遵循的基本步骤。这个小指南纯粹是为了帮助你启动和运行自己的 EOS 节点。几天的内容和图片汇编了我的阅读和理解。
本指南不解释什么是区块链，这是特定的，以尽快开始使用 EOS 并减少麻烦。纯粹基于经验。
EOS 区块链概述
EOSIO 附带了许多程序。你将使用的主要部分以及此处涉及的部分是：
nodeos（node + eos = nodeos），可以使用插件配置以运行节点的核心 EOSIO 节点守护程序。示例用法是块生产，专用 API 端点和本地开发。
cleos（cli + eos = cleos），命令行界面，用于与区块链交互并管理钱包。
keosd（key + eos = keosd），将 EOSIO 密钥安全存储在钱包中的组件。
eosio-cpp（eosio.cdt 的一部分），它将 C ++ 代码编译为 WASM 并可以生成 ABI（CDT 是合约开发工具链）。
这些组件之间的基本关系如下图所示。
最新堆栈版本（截至本文编写日）
nodeos：1.5.0
cleos：1.5.0
keosd：1.5.0
eosio.cdt：1.4.1
eosio.contracts：1.4.0
安装本地节点
有几种方法可以做到：
1. 使用 Docker，快速简便。
2. 使用二进制文件，它也行。
使用 Docker 安装
You create 2 containers. One for ‘nodeos’ and another for ‘keosd’
#Pull latest docker image of EOS
docker pull eosio/eos-dev
#Create local network
docker network create eosdev
#Start nodeos(Core Daemon)
docker run –name nodeos -d -p 8888:8888 –network eosdev -v /tmp/eosio/work:/work \
-v /tmp/eosio/data:/mnt/dev/data -v /tmp/eosio/config:/mnt/dev/config eosio/eos-dev \
/bin/bash -c “nodeos -e -p eosio –plugin eosio::producer_plugin \
–plugin eosio::history_plugin –plugin eosio::chain_api_plugin \
–plugin eosio::history_api_plugin –plugin eosio::http_plugin \
-d /mnt/dev/data –config-dir /mnt/dev/config –http-server-address=0.0.0.0:8888 \
–access-control-allow-origin=* –contracts-console –http-validate-host=false”
###### NOTES about above Command
– Creating a docker container running ‘nodeos’ daemon
– Exposing port 8888 so that you can access the ‘nodeos’ using RPC and HTTP
– Mounting few directories on your local machine so that you don’t have to login into container
– Few plugins which will allow this node to become a producer, expose rpc api over http, exposing command line interface to run ‘nodeos’ commands
#Run keosd(Wallet and Keystore)
docker run -d –name keosd –network=eosdev -i eosio/eos-dev /bin/bash \
-c “keosd –http-server-address=0.0.0.0:9876”
#Check installation
docker logs –tail 10 nodeos
and you will see something like:
info 2018-12-04T15:01:22.003 thread-0 producer_plugin.cpp:1494 produce_block ] Produced block 00005ce7fabcbcf8… #23783 @ 2018-12-04T15:01:22.000 signed by eosio [trxs: 0, lib: 23782, confirmed: 0]
info 2018-12-04T15:01:22.507 thread-0 producer_plugin.cpp:1494 produce_block ] Produced block 00005ce84867bcbf… #23784 @ 2018-12-04T15:01:22.500 signed by eosio [trxs: 0, lib: 23783, confirmed: 0]
info 2018-12-04T15:01:23.005 thread-0 producer_plugin.cpp:1494 produce_block ] Produced block 00005ce936ca4869… #23785 @ 2018-12-04T15:01:23.000 signed by eosio [trxs: 0, lib: 23784, confirmed: 0]
i
#Check Wallets (Open bash for keosd)
docker exec -it keosd bash
and once in the container, on bash, execute this:
cleos –wallet-url http://127.0.0.1:9876 wallet list keys
Should show empty wallets:
Wallets: []
#Check ‘nodeos’ end points – run this out side containers
curl http://localhost:8888/v1/chain/get_info
{
“server_version”:”549c96cd”,
“chain_id”:”cf057bbfb72640471fd910bcb67639c22df9f92470936cddc1ade0e2f2e7dc4f”,
“head_block_num”:24182,
“last_irreversible_block_num”:24181,
“last_irreversible_block_id”:”00005e751a1e31b15acd25ffc8725cb2c67926647edb89e726e386716afdef5d”,
“head_block_id”:”00005e76fd035dbf694d2a575bb1849f436428b466fd95323e43619b73bf7b9d”,
“head_block_time”:”2018-12-04T15:04:41.500″,
“head_block_producer”:”eosio”,
“virtual_block_cpu_limit”:200000000,
“virtual_block_net_limit”:1048576000,
“block_cpu_limit”:199900,
“block_net_limit”:1048576,
“server_version_string”:”v1.5.0-rc2″
}
#Alias cleos so that you can access it by simply ‘cleos’
docker network inspect eosdev
check for keosd IP address in the response of above command and execute the following:
alias cleos=’docker exec -it nodeos /opt/eosio/bin/cleos –url http://127.0.0.1:8888 –wallet-url http://172.18.0.3:9876′
使用二进制文件安装 – MAC 指令
#Step 1: Install binaries
brew tap eosio/eosio
brew install eosio
#Step 2: Setup a development directory, stick to it.
mkdir contracts
cd contracts
#Step 3: Install CDT. The EOSIO Contract Development Toolkit, CDT for short
brew tap eosio/eosio.cdt
brew install eosio.cdt
#Boot Node and Wallet
#Start keosd: keosd &
#Start nodeos:
nodeos -e -p eosio \
–plugin eosio::producer_plugin –plugin eosio::chain_api_plugin –plugin eosio::http_plugin –plugin eosio::history_plugin –plugin eosio::history_api_plugin \
-d /Users/vijay/eos_blockchain/contracts/eosio/data \
–config-dir /Users/vijay/eos_blockchain/contracts/eosio/config \
‘–access-control-allow-origin=*’ –contracts-console
–http-validate-host=false ‘–filter-on=*’ >> nodeos.log 2>&1 &
#Check installation (in current directory)
tail -f nodeos.log
#Check the wallet
cleos wallet list
#Check nodeos endpoints
curl http://localhost:8888/v1/chain/get_info
上述步骤之一将帮助你设置和运行本地节点。
使用钱包，帐户和密钥
现在你准备好在区块链上做一些事情。在 EOS 中，你必须拥有一个帐户才能执行任何操作，例如创建 token，发送 token，接收 token，编写交易等。此节点将有一个名为 eosio 的系统用户，因此你可以使用此用户来玩 eos 区块链。
因此，在本节中，我们将在本地节点上执行以下操作：
创建一个新钱包。
创建新密钥（私人 + 公共）。
将这些钥匙导入钱包。
建立新帐户。
让我们运行一些命令并观察你所看到的。只需阅读所有命令的注释，即可了解它们的作用。
#List existing wallets. Wallet stores keys
cleos wallet list
#List wallet keys if any
cleos wallet list key
#you should see all empty response
#create wallet now
cleos wallet create
Creating wallet: default
“PW5JYR5u7WTk6RaJARE41qb3Wy6BJtcKCjpDAyjR2uV3CWF8nDFe7”
this will create wallet with name ‘default’. Keep note of password it returns.
#Create new keys
cleos create key –to-console
Private key: 5JseP8pEsJfAEWix5U6ow77TrKu2uuBhjfobyzgYyCYAtnxnCk8
Public key: EOS4tmc8ufENZNkFQaj8ZfV9UfeRLnyaCecybSgPS1U8671BNdSxD
#Import the private keys in wallet
cleos wallet import -n quant –private-key 5JseP8pEsJfAEWix5U6ow77TrKu2uuBhjfobyzgYyCYAtnxnCk8
#### MOST IMPORTANT STEP ####
Import genesis ‘eosio’ account keys in the wallet so that eosio account is available for creating new accounts.
Private key of eosio: 5KQwrPbwdL6PhXujxW37FSSQZ1JiwsST4cqQzDeyXtP79zkvFD3
在这个阶段，你已准备好带有 eosio（创世纪帐户）的钱包和导入的新密钥。所以我们现在准备好做更多的操作了。
我们将在下一节中执行以下操作：
部署 token 合约，以便区块链准备好创建新的 token。
创建新 token。
将新 token 分配给创世帐户（eosio）。
在用户之间转移 token。
检查余额等。
#Deploy Token Contacts
create an account first with the name ‘eosio.token’ for the contract
cleos create account <owner> <newaccountname> <pubkey1> <pubkey2>
cleos create account eosio eosio.token EOS5ySgzeHp9G7TqNDGpyzaCtahAeRcTvPRPJbFey5CmySL3vKYgE EOS5ySgzeHp9G7TqNDGpyzaCtahAeRcTvPRPJbFey5CmySL3vKYgE
you would see something like this:
executed transaction: 4a8b53ae6fa5e22ded33b50079e45550e39f3cb72ffa628e771ea21758844039 200 bytes 339 us # eosio <= eosio::newaccount {“creator”:”eosio”,”name”:”eosio.token”,”owner”:{“threshold”:1,”keys”:[{“key”:”EOS5ySgzeHp9G7TqNDGpy…
Deploy contract now:
cleos set contract eosio.token <path-to-contracts-directory>/contracts/eosio.token -p eosio.token
you would see something like this:
Reading WAST/WASM from /opt/eosio/bin/data-dir/contracts/eosio.token/eosio.token.wasm… Using already assembled WASM… Publishing contract… executed transaction: 41677b5fd5c701ca67a153abb09f79c04085cc51a9d021436e7ee5afda1781bd 8048 bytes 1212 us # eosio <= eosio::setcode {“account”:”eosio.token”,”vmtype”:0,”vmversion”:0,”code”:”0061736d01000000017f1560037f7e7f0060057f7e… # eosio <= eosio::setabi {“account”:”eosio.token”,”abi”:”0e656f73696f3a3a6162692f312e30010c6163636f756e745f6e616d65046e616d65…
#Create new Token
cleos push action eosio.token create ‘[“eosio”, “10000000000.0000 EOS”,0,0,0]’ -p eosio.token
you would see like this:
executed transaction: 566693cba0b0d5d11d85e40cdfb095d525612c5915e17ce75d309054e1912235 120 bytes 552 us # eosio.token <= eosio.token::create {“issuer”:”eosio”,”maximum_supply”:”10000000000.0000 EOS”}
#Send newly created Tokens (EOS) to genesis account (eosio)
cleos push action eosio.token issue ‘[“eosio”,”1000000000.0000 EOS”, “issue”]’ -p eosio
you would see something like this:
executed transaction: 73f72879d220c720fcefb16b6aaf3db0ba492bd62020853b2cd5051557d5fa87 128 bytes 677 us # eosio.token <= eosio.token::issue {“to”:”eosio”,”quantity”:”1000000000.0000 EOS”,”memo”:”issue”}
#Check above transactions if they are completed
cleos get transaction 73f72879d220c720fcefb16b6aaf3db0ba492bd62020853b2cd5051557d5fa87
and
cleos get transaction 566693cba0b0d5d11d85e40cdfb095d525612c5915e17ce75d309054e1912235
you should have long JSON response. It simply means above steps are successful.
#Check balance now of eosio account
cleos get currency balance eosio.token eosio
you would see:
1000000000.0000 EOS
你去了，现在你已经创建了 token，eosio 帐户有很多 EOS token，他现在可以轻松地将资金发送到其他帐户。
#Create a new account
cleos create account eosio user1 <public_key_of_user1> <public_key_of_user1>
#Check if account is created. You should have json response
cleos get account user1
#Send money to user1 account
cleos transfer eosio user1 “1000.00 EOS”
#Check the balance of user1
cleos get currency balance eosio.token vijay1
仅此而已！
分享两个 EOS 区块链相关的交互式在线编程实战教程：
EOS 入门教程，本课程帮助你快速入门 EOS 区块链去中心化应用的开发，内容涵盖 EOS 工具链、账户与钱包、发行代币、智能合约开发与部署、使用代码与智能合约交互等核心知识点，最后综合运用各知识点完成一个便签 DApp 的开发。
深入浅出玩转 EOS 钱包开发，本课程以手机 EOS 钱包的完整开发过程为主线，深入学习 EOS 区块链应用开发，课程内容即涵盖账户、计算资源、智能合约、动作与交易等 EOS 区块链的核心概念，同时也讲解如何使用 eosjs 和 eosjs-ecc 开发包访问 EOS 区块链，以及如何在 React 前端应用中集成对 EOS 区块链的支持。课程内容深入浅出，非常适合前端工程师深入学习 EOS 区块链应用开发。
汇智网原创翻译，转载请标明出处。这里是网友第一次开发 EOS 区块链的经验
