分享一个网友第一次开发EOS区块链总结的经验

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：1.5.0cleos：1.5.0keosd：1.5.0eosio.cdt：1.4.1eosio.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 EOSdocker pull eosio/eos-dev#Create local networkdocker 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 installationdocker logs –tail 10 nodeosand 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 bashand once in the container, on bash, execute this:cleos –wallet-url http://127.0.0.1:9876 wallet list keysShould show empty wallets:Wallets: []#Check ’nodeos’ end points - run this out side containerscurl 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 eosdevcheck 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 binariesbrew tap eosio/eosiobrew install eosio#Step 2: Setup a development directory, stick to it.mkdir contractscd contracts#Step 3: Install CDT. The EOSIO Contract Development Toolkit, CDT for shortbrew tap eosio/eosio.cdtbrew 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 keyscleos wallet list#List wallet keys if anycleos wallet list key#you should see all empty response#create wallet nowcleos wallet createCreating wallet: default"PW5JYR5u7WTk6RaJARE41qb3Wy6BJtcKCjpDAyjR2uV3CWF8nDFe7"this will create wallet with name ‘default’. Keep note of password it returns.#Create new keyscleos create key –to-consolePrivate key: 5JseP8pEsJfAEWix5U6ow77TrKu2uuBhjfobyzgYyCYAtnxnCk8Public 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 contractcleos create account <owner> <newaccountname> <pubkey1> <pubkey2>cleos create account eosio eosio.token EOS5ySgzeHp9G7TqNDGpyzaCtahAeRcTvPRPJbFey5CmySL3vKYgE EOS5ySgzeHp9G7TqNDGpyzaCtahAeRcTvPRPJbFey5CmySL3vKYgEyou 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.tokenyou 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 Tokencleos push action eosio.token create ‘[“eosio”, “10000000000.0000 EOS”,0,0,0]’ -p eosio.tokenyou 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 eosioyou 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 completedcleos get transaction 73f72879d220c720fcefb16b6aaf3db0ba492bd62020853b2cd5051557d5fa87andcleos get transaction 566693cba0b0d5d11d85e40cdfb095d525612c5915e17ce75d309054e1912235you should have long JSON response. It simply means above steps are successful.#Check balance now of eosio accountcleos get currency balance eosio.token eosioyou 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 accountcleos create account eosio user1 <public_key_of_user1> <public_key_of_user1>#Check if account is created. You should have json responsecleos get account user1#Send money to user1 accountcleos transfer eosio user1 “1000.00 EOS”#Check the balance of user1cleos 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