My neovim setup for Go | HackerNoon
Too Long; Didn't ReadI’m getting questions quite often about how my <a href="https://neovim.io" target="_blank">neovim</a> is configured for Go development. So in this article I intend to describe just that. In the interest of brevity I’ll not cover the setup in general, but rather the Go parts in particular. I’m getting questions quite often about how my neovim is configured for Go development. S
How to write a DNS server in Go
Here’s a DNS server written in Go. It uses the package github.com/miekg/dns, which is an alternative to the standard library’s DNS stuff, and also lets you implement a DNS server rather than just a client. The example DNS server below only knows how to answer A queries, and for these, it only knows the IP addresses of two domains. package main import ( "net" "strconv" "log" "github.com/miekg/dns"
Repeatable and Isolated Development Environments for Go
One of the common criticisms of the GOPATH is that it is hard to create isolated development environments without resorting to hacks, bash scripts, multiple GOPATH settings, or other trickery. Generally, I don’t often have too many problems with GOPATH, but when I do they are frustrating and hard to figure out. An example: Your dependency manager copies deps from your GOPATH into your project’s ve
goa :: Design-first API Generation
Goa provides a holistic approach for developing remote APIs and microservices in Go. Code GenerationGoa relies on code generation to alleviate the need for reflection or repetitive coding. The goa tool generates various artifacts including code, documentation, clients and even custom outputs via plugins. The end result is application code that is clean and terse. Design BasedThe Goa design languag
The Go scheduler - Morsing's blog
30 June 2013 The Go scheduler Introduction One of the big features for Go 1.1 is the new scheduler, contributed by Dmitry Vyukov. The new scheduler has given a dramatic increase in performance for parallel Go programs and with nothing better to do, I figured I'd write something about it. Most of what's written in this blog post is already described in the original design doc. It's a fairly compreh
PostgreSQLデータベースの使用 · Build web application with Golang
5.4 PostgreSQLデータベースの使用 PostgreSQLはフリーなオブジェクト-リレーショナルデータベースサーバ（データベース管理システム）です。これは活発なBSDライクなライセンスで公開されています。他のオープンソースなデータベースシステム(MySQLやFirebird)やOracle、Sybase、IBMのDB2やMicrosoft SQL Serverといったプロプライエタリなシステムに対する選択肢の一つです。 PostgreSQLとMySQLを比較すると、これは少々巨大です。これはOracleの代替として設計されているためです。そのため、企業のアプリケーションではPostgreSQLを選択することが賢い選択の一つとなっています。 MySQLはOracleに買収され、現在徐々にクローズされつつあります。(MySQL 5.5.31以降のすべてのバージョンがGPLライセンスを
Go database/sql tutorial
The idiomatic way to use a SQL, or SQL-like, database in Go is through the database/sql package. It provides a lightweight interface to a row-oriented database. This website is a reference for the most common aspects of how to use it. Why is this needed? The package’s documentation tells you what everything does, but it doesn’t tell you how to use the package. Many of us find ourselves wishing for
go-swaggerを使う — そこはかとなく書くよん。 ドキュメント
go-swaggerを使う¶ この記事は Go (その2) Advent Calendar 2016 の7日目の記事です。 APIからのコード自動生成ツールとして、swaggerが最近流行ってます(異論は認めます)。 この分野では、 goa が有名ですが、goaはあくまでGoのDSLから生成するという方式です。 swagger定義がすでにある場合には使えません。 swagger定義ありきの場合、今回説明する go-swagger を使うと便利です。 なお、この内容は https://github.com/shirou/swagger_sample にて公開しています。 go-swaggerとは¶ go-swaggerは、swagger定義からgoのサーバーおよびクライアントを生成してくれるツールです。 インストールはgo getでインストールしてもよいのですが、goの環境がない場合は do
Google App Engine — Password-less Login with OAuth2
Unlike rows in a relational database table, Datastore entities of the same kind can have different properties, and different entities can have properties with the same name but different value types. These unique characteristics imply a different way of designing and managing data to take advantage of the ability to scale automatically. In particular, Datastore differs from a traditional relationa
GitHub - kayac/ddl-maker
package example import ( "database/sql" "time" "github.com/kayac/ddl-maker/dialect" "github.com/kayac/ddl-maker/dialect/mysql" ) type User struct { Id uint64 Name string CreatedAt time.Time UpdatedAt time.Time Token string `ddl:"-"` DailyNotificationAt string `ddl:"type=time"` } func (u *User) Table() string { return "player" } func (u *User) PrimaryKey() dialect.PrimaryKey { return mysql.AddPrima
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