<p>Hi gophers! I'm almost newbie in golang. And want to improve my skills working on some real project not big and complicated. I looked through a lot of popular open source projects with huge amount of stars on github, but issue there sometimes to heavy for me or some project like beego maintened mostly by chinese (sorry if it is not...阅读全文
<p>I'm a college senior and am tempted to learn go out of curiosity, but am having trouble understanding where it is used in the real world. I have a heavy interest in security and possibly development for after school and am mainly using python at the moment. So what are you guys using go for at work or at home? And is it worth me le...阅读全文
micro web micro 功能非常强大,本文将详细阐述micro web 命令行的功能 阅读本文前你可能需要进行如下知识储备 golang分布式微服务框架go-micro 入门笔记1:搭建go-micro环境, golang微服务框架go-micro 入门笔记2.1 micro工具之micro api 本文应用环境 名称 描述 操作系统 win10 go version go version go1.12.7 windows/amd64 GOPATH E:\winlion\gopath GOPROXY goproxy.io G111MODULE on 命令行工具 cmder工具,可自行百度安装 命令行说明 micro web指令全部参数如下 NAME: micro web - Run ...阅读全文
vscode在安装go-tools相关工具包时，总是failed，原因是国内对proxy.golang.org的墙网络问题 首先打开terminal，go env，找到GOPROXY 然后输入 go env -w GOPROXY=https://goproxy.cn 此时再进VScode按go插件的提示安装全部工具，即可有代码提示等功能了 相关issue链接 https://github.com/golang/go/issues/31755 https://goproxy.cn...阅读全文
作者 | 杨成立（忘篱） 阿里巴巴高级技术专家 关注“阿里巴巴云原生”公众号，回复 Go 即可查看清晰知识大图！ 导读：从问题本身出发，不局限于 Go 语言，探讨服务器中常常遇到的问题，最后回到 Go 如何解决这些问题，为大家提供 Go 开发的关键技术指南。我们将以系列文章的形式推出《Go 开发的关键技术指南》，共有 4 篇文章，本文为第 3 篇。 Go 开发指南 Interfaces Go 在类型和接口上的思考是： Go 类型系统并不是一般意义的 OO，并不支持虚函数； Go 的接口是隐含实现，更灵活，更便于适配和替换； Go 支持的是组合、小接口、组合+小接口； 接口设计应该考虑正交性，组合更利于正交性。 Type System Go 的类型系统是比较容易和 C++/Java 混淆的，特...阅读全文
<p>My school uses DPI (deep packet inspection) to block protocols like SSH and OpenVPN. Additionally, few remote ports are enabled. Sometimes I want to login to my VPS from school to fix or work on something, but I cannot because SSH is blocked. Furthermore, my school has a approved (yes, approved by the school administration) League Of Legen...阅读全文
本章节阐述micro消息订阅和发布相关内容 阅读本文前你可能需要进行如下知识储备 golang分布式微服务框架go-micro 入门笔记1:搭建go-micro环境, golang微服务框架go-micro 入门笔记2.1 micro工具之micro api golang微服务框架go-micro 入门笔记2.2 micro工具之micro web broker代理 微服务之间需要通过broker来传递消息,go-micro支持http/nats/memory三种broker,其中http是默认的broker。 同时,go-micro以强大的插件形式,提供如下几种常见的broker。 $ls gocloud/ googlepubsub/ grpc/ kafka/ mqtt/ nats/ ns...阅读全文
起因： 无法导入自己编写的包 go module 输入go env GO111MODULE="on" 含义： GO111MODULE=off: 不使用 Module-aware mode。 GO111MODULE=on: 使用 Module-aware mode，不会去 GOPATH 下面查找依赖包。 GO111MODULE=auto或unset: Golang 自己检测是不是使用Module-aware mode。 根据官方描述在不设置GO111MODULE的情况下或者设为auto的时候，如果在当前目录或者父目录中有go.mod文件，那么就使用Module-aware mode， 而go1.12中，如果包位于GOPATH/src下，且GO111MODULE=auto, 即使有go.mod的...阅读全文
<p>Hi,</p> <p>I am new in golang. I develop web api using golang on mac os. My production environment is ubuntu 14.04 on Digitalocean. How can I deploy golang? what is the bast practice? How can I use docker? </p> <hr/>**评论：**<br/><br/>silenceofnight: <pre><p>You can pretty much just c...阅读全文
<p>I have been working on an application which primarily deals with web requests. I am using nginx to reverse proxy requests to the go portion of the application however am struggling to deal with port exhaustion (when trying via. TCP) and sockets being temporarily unavailable (when trying via. Unix sockets).</p> <p>How viable wo...阅读全文
<p>Hi Everyone,</p> <p>A few days ago, I'm decide rewrote <a href="https://github.com/antchfx/antch" rel="nofollow">Antch</a> project, Its open source web crawler framework that inspired by <a href="https://scrapy.org/" rel="nofollow">Scrapy</a> project.</p> &...阅读全文
张仕华 proxy启动 cmd/proxy/main.go文件 解析配置文件之后重点是proxy.New(config)函数 该函数中，首先会创建一个Proxy结构体，如下: type Proxy struct { mu sync.Mutex ... config *Config router *Router //Router中比较重要的是连接池和slots ... lproxy net.Listener //19000端口的Listener ladmin net.Listener //11080端口的Listener ... } 然后起两个协程,分别处理11080和19000端口的请求 go s.serveAdmin() go s.serveProxy() 我们重点看s.serveProx...阅读全文
<p>I'm considering a few tech stacks at the moment for web development (Elixir, Clojure, TypeScript+Node, and .NET Core). I'm interested in hearing from folks who have used Go for a while. What has gone well? What hasn't? If you could start your project over, would you still use Go?</p> <hr/>**评论：**<br/&...阅读全文
<p>hi guys, started a course on golang that uses grpc and proto buffers to build a rest service. seems useful enough but the instructor doesn't really go into much detail as to the reason why he using these tools to build the api. any medium/blog articles out there on the pros and cons of grpc? thanks!</p> <hr/>**评论：**<...阅读全文
<p>I have the following basic Nginx configuration that proxies requests through to my Go app, which runs on port 8080:</p> <pre><code>server { listen 80 default_server; listen [::]:80 default_server; error_log /var/log/nginx/error.log; access_log /var/log/nginx/access.log; server_name 192.168.50.50; ...阅读全文
<p>When defining read/write timeouts in a new HTTP server, how can one account for long-running server processes, streaming, or large file downloads?</p> <p>I'm most concerned with long-running server-side processes (anywhere from 30 seconds to a few minutes). I'm sure holding the request open and using long timeo...阅读全文
写在前面 世界是复杂的,每一种思想都是为了解决某些现实问题而简化成的模型,想解决就得先面对,面对就需要选择角度,角度决定了模型的质量, 喜欢此UP主汤质看本质的哲学科普,其中简洁又不失细节的介绍了人类解决问题的思路,以及由概念搭建的思维模型对人类解决问题的重要性与限制.也认识到学习的本质就是: 认识获取(了解概念) -> 知识学习(建立模型) -> 技能训练(实践) 阅读也好, 学习也好, 妨碍我们「理解」的障碍主要有两个： 高度抽象的概念 「模型」无法关联现象 也就是说 概念明确 + 关系明确, 才能构成「模型」, 对照「现象」, 形成「理解」。 在理解编程知识时可以关键归纳为两点：理解核心概念群+使用场景思考与故事化讲述 这里特别推荐码农翻身中大话编程式的科普: 码农翻身全年文章精华 并...阅读全文
<p>Hi guys,</p> <p>For experienced people, compare and contrast using the go built-in (standard library) server for production, with nginx. Is Go good enough for any size production and has all the bells and whistles you need?</p> <p>I am particularly interested in logging as I would think maybe nginx has more loggi...阅读全文
<p>I've been building a reverse proxy proof of concept for a routing tier for work but I'm not using the native http reverseproxy because I need to make a call to multiple services based on config. </p> <p>So it'll make a call to this service, localise it maybe and redirect it to itself if needed, then mak...阅读全文
安装Go语言及搭建Go语言开发环境 注意：Go语言1.14版本之后推荐使用go modules管理以来，也不再需要把代码写在GOPATH目录下了，之前旧版本的教程戳这个链接。 下载 下载地址 Go官网下载地址：https://golang.org/dl/ Go官方镜像站（推荐）：https://golang.google.cn/dl/ 版本的选择 Windows平台和Mac平台推荐下载可执行文件版，Linux平台下载压缩文件版。 下图中的版本号可能并不是最新的，但总体来说安装教程是类似的。Go语言更新迭代比较快，推荐使用较新版本，体验最新特性。 download1 安装 Windows安装 此安装实例以 64位Win10系统安装 Go1.14.1可执行文件版本为例。 将上一步选好的安装包下载...阅读全文
<p>I am building a Vue.js based frontend. Till today I was writing the front end, but now I want to check how it deals with the backend, there are two options I have</p> <ol> <li>Write the backend</li> <li>Use a tool which would simulate the backend</li> </ol> <p>I tried looking on Github, but...阅读全文
<p>One of my main concerns around choosing golang for a new project is that there don't seem to be "production ready" dependency management tools available.</p> <p>How do you all manage your dependencies? Pulling the latest commit off master off some random github repo and hoping for the best scares me a b...阅读全文
<p>Forgive me if this has been asked before. I've seen a few similar posts. The most common advice is - make a project or contribute to open source.</p> <p>I've done that. After learning Go, I have created 6 libraries. And I have contributed to the Go language itself by fixing a couple of functions.</p> <...阅读全文
<p>I've ran into some strange websockets behaviour today and seek for some help from comunity to understand what can be the cause.</p> <p>I've been trying to implement some simple webservice using websockets (from gorillas toolkit). Everything worked fine at home (I'm using macOS there), but when I pulled ...阅读全文
<p>Hey <a href="/r/golang" rel="nofollow">/r/golang</a> - I'm a full stack (BI) developer and my employer has passed on the opportunity to monetize an internal solution and I asked for and was granted permission to work on it on the side.</p> <p>The employer solution is built with php and jQuer...阅读全文
<p>I used Apache in the past, for hosting PHP websites. I know very little about NGINX but from what I understand it's also a web/mail server. </p> <p>How do most developers use Go on the server, do they install the web server software together with the Go program, or do they use the stdlib http/smtp server? </p> &...阅读全文
<p>Feature List:</p> <ul> <li><p>Layer-7 Proxy：HTTP requests can be load balanced to different tasks base on Round Robin policy, with more coming soon.</p></li> <li><p>Built-in DNS Proxy：each tasks and apps can be uniquely identify by a SRV record, with which micro-services can be easily addres...阅读全文
<p>Hi,</p> <p>I'm developing some services in go and need to provide API documentation.</p> <p>I've written documentation in swagger which I believe is complete... but its probably not and is likely to go out of date...</p> <p>I have a full suite of integration gets that tests my service...阅读全文
<p>I'm happy to announce 2.0 release of <a href="https://github.com/mmatczuk/go-http-tunnel">https://github.com/mmatczuk/go-http-tunnel</a> .</p> <hr/>**评论：**<br/><br/>mrfrobozz: <pre><p>Is this like ngrok but self hosted?</p></pre>mmatczuk: <pre><p>Yes.&l...阅读全文
前言 这周很值得纪念，首先是 goproxy.cn 已缓存的模块版本总数突破了一百万，这甚至比起 Go 官方的 proxy.golang.org 已缓存的还要多出不少。其次是 goproxy.cn 的日访问量已稳定在千万级，正在朝着亿级进发，目前这在国内我了解到的别的几个同类服务中是最多的了。另外尤为重要的一点是，经过我们的不懈努力，甚至付出了两次事故的代价（详见：status.goproxy.cn），我们终于使得 goproxy.cn 达到了零错误率！现在的 goproxy.cn 可以说是很稳的了，大家可以放心使用。 刚刚在开头稍微为这一个月发生的事情做了个小总结。接下来说一下本次的重点，也就是 goproxy.cn 推出了 Go 模块代理世界中的首个统计数据 API（文档详见：gopro...阅读全文
<p>Hello Redditors / Gophers,</p> <p>I'm (a beginner) trying to develop an interactive web page (displaying a dashboard) with HTML and JavaScript at the client side and Go at the server side (the go server calls multiple APIs and manages the data). I'm doing it this way because I had problems with CORS when I only...阅读全文
<p>Hi,</p> <p>at work we tried to configure the Apache HTTP server to act as a reverse proxy with caching. We couldn't get it to work in more than three hours. At home I wrote exactly this in two hours: A reverse proxy that caches the requests: <a href="https://github.com/hauke96/tiny-http-proxy" rel="nofol...阅读全文
<p>So far I know only one way of writing Go applications.</p> <p>Use the, built in HTTP server, listen on a port and serve files.</p> <p>Are there other ways of invoking Go code?</p> <p>Let's say I have a mainly static website, for the most part I don't need back-end code. However, I woul...阅读全文
<p>Hi there, I'm a game designer/programmer who's working on a new game. I am the man responsible for the mess of spaghetti PHP 3 code that was Neopets in the early 2000s and want to do things the right way this time.</p> <p>I'm creating a REST API using GoBuffalo and gocql (Cassandra) for my game. I&...阅读全文
问题 如上图如何能快速的从两个Redis实例怎么快速对比哪些数据不一致？什么是数据不一致key不一致相同key名 在不同实例上的数据类型不一致key 存在于源 redis 不存在目标 rediskey 存在于 目标redis 不存在源redisvalue 不一致string 类型的值，在不同实例上不一致其他类型，同key判断.工具推荐 redis-full-check是阿里云Redis&MongoDB团队开源的用于校验2个redis数据是否一致的工具，支持单节点、主从、集群版、以及多种proxy，支持同构以及异构对比，redis的版本支持2.x-5.x。下载工具RedisFullCheck目前仅支持 Linux环境 ,其他环境自行安装Golang自行交叉编译运行使用参数说明-t 目标库-s ...阅读全文
开篇依然是那三个问题: redigo 是否能够用于 codis ? 如果不经过任何加工, 直接用 redigo 去访问 codis, 会出现什么样的问题 ? codis 的 golang 客户端如何实现 ? 先贴出来, 我之前直接用 Redigo 接入 codis 的代码 // Redis global redis connection pool var Redis *redis.Pool var RedisInitErr = errors.New("init redis error") Redis = &redis.Pool{ MaxIdle: 10, Dial: func() (conn redis.Conn, e error) { addrs, err := getHosts() if...阅读全文
文链接：Go Modules 详解 Go 1.11 和 Go 1.12 包含了初步的 Go Modules 支持，且计划在 2019 年 8 月发布的 Go 1.13 会在所有开发过程中默认使用 Go Modules。 Go Modules 是为了提升使用其他开发者代码，即添加依赖项（模块、包）时的体验，也是为了让代码的正确性、安全性得到保障。并且 Go Modules 可以使用 GOPROXY 环境变量来解决中国大陆无法使用 go get 的问题。 所以学习跟 Go Modules 有关的知识是很有必要的。 模式 Go Modules 在 Go 1.11 及 Go 1.12 中有三个模式，根据环境变量 GO111MODULE 定义： 默认模式（未设置该环境变量或 GO111MODULE=a...阅读全文
<p>I'm coming from a NodeJS background. When building a server in NodeJs, we tend to leave caching, gzipping, most of the HTTP part to the web server (nginx or such). In production, we deploy a cluster of the app server (which is asynchronous by design) to multiple cores. Use frameworks like Koa/Express for handling routes and middlew...阅读全文
1、Mac配置环境 1.1 安装go: https://golang.org/dl/ 下载画圈文件，安装即可1.2 配置环境vim ~/.bash_profile 打开配置文件复制下面这些： export PATH="/opt/local/bin:/opt/local/sbin:/usr/local/go/bin:$PATH" export GOROOT=/usr/local/go export GOPATH=/Users/你的go目录/Go export GOBIN=$GOPATH/bin export PATH=$GOBIN:$PATH source ~/.bash_profile 是配置生效 使用 go env 查看go配置 或者 go version 查看版本，这两个命令来检测是否成...阅读全文
