1、搭建内容

主要包括安装eosio、eosio.cdt、启动eos、创建钱包以及创建账号等。

eosio.cdt：The EOSIO Contract Development Toolkit, CDT for short, is a collection of tools related to contract compilation. Subsequent tutorials use the CDT primarily for compiling contracts and generating ABIs.

钱包：Wallets are repositories of public-private key pairs. Private keys are needed to sign operations performed on the blockchain. Wallets are accessed using cleos.

账号：用于标记一个发送者或接受者。具有灵活的鉴权结构。

2、安装遇到的问题

mac环境。操作系统：macOS Mojave 版本号：10.14.6

2.1 安装eosio报错

现象：

SummerdeMacBook-Pro:eos summer$ brew install eosio

==> Installing eosio from eosio/eosio

==> Downloading https://github.com/eosio/eos/releases/download/v2.0.0/eosio-2.0.0.mojave.bottle.tar.gz

==> Downloading from https://github-production-release-asset-2e65be.s3.amazonaws.com/87335980/c7b50e80-33cf-11ea-8fdb-b2062f03be5e?X-Amz-Algorithm=AWS4-HMAC-S

############################# 40.7%

curl: (56) LibreSSL SSL_read: SSL_ERROR_SYSCALL, errno 54

curl: (22) The requested URL returned error: 403 Forbidden

Error: Failed to download resource "eosio"

Download failed: https://github.com/eosio/eos/releases/download/v2.0.0/eosio-2.0.0.mojave.bottle.tar.gz

Warning: Bottle installation failed: building from source.

==> Downloading https://github.com/eosio/eos/archive/v2.0.0.tar.gz

Already downloaded: /Users/summer/Library/Caches/Homebrew/downloads/50cf9a376f0d6a9af0a5a1a253a0ee5cb8d32bdb697e2ff029d25e181e5e72d5--eos-2.0.0.tar.gz

Warning: Cannot verify integrity of 50cf9a376f0d6a9af0a5a1a253a0ee5cb8d32bdb697e2ff029d25e181e5e72d5--eos-2.0.0.tar.gz

A checksum was not provided for this resource.

For your reference the SHA-256 is: 2346e2356094b21f996460d7c72f48f9b19519a199d3ba6fe39086ab10a5ae4d

Error: An exception occurred within a child process:

RuntimeError: Error, only supporting binary packages at this time

SummerdeMacBook-Pro:eos summer$

原因：网络原因，导致下载eosio-2.0.0.mojave.bottle.tar.gz报错。

解决：手动下载，并且拷贝到brew的缓存目录中。参考https://segmentfault.com/a/1190000020125374

2.2 安装cdt报错

安装cdt相对费劲，cdt有点大，并且还有各种依赖。最后通过梯子安装成功了。不再赘述。

3、概念理解

3.1 eos理解

包括keosd、nodeos和cleos三大模块。

需要分别启动keosd和nodeos进程。nodeos通过命令行或者ini配置文件作为启动参数，nodeos是插件化结构，可以指定自己需要的各种plugin。

默认config和data目录：~/Library/Application Support/eosio/nodeos

3.2 钱包

钱包是用来存储私钥和对交易进行签名的。理解钱包和密钥的概念，创建钱包后，需要导入密钥，导入后，密钥才和钱包对应起来。

大概流程：创建、打开、解锁、导入密钥、导入开发密钥

以下是导入密钥命令，会返回一个公钥，后续创建账号时会用到这个公钥。

SummerdeMacBook-Pro:eos summer$ cleos wallet create_key

Warning: Failed to set locale category LC_NUMERIC to en_CN.

Warning: Failed to set locale category LC_TIME to en_CN.

Warning: Failed to set locale category LC_COLLATE to en_CN.

Warning: Failed to set locale category LC_MONETARY to en_CN.

Warning: Failed to set locale category LC_MESSAGES to en_CN.

Created new private key with a public key of: "EOS53LfJ76o1ppN1i77EwLBaZJ5tuGuf9NLdNxPK2gRpL17LaqFvV"