go-sql-driver/mysql VS go-doudou

IDE: use whatever make you productive. I personally use vscode. VCS: git, as golang communities use github heavily as base for many libraries. AFAIK Linter: use staticcheck for linting as it looks like mostly used linting tool in go, supported by many also. In Vscode it will be recommended once you install go plugin. Libraries/Framework: actually the standard libraries already included many things you need, decent enough for your day-to-day development cycles(e.g. `net/http`). But here are things for extra: - Struct fields validator: validator - Http server lib: chi router , httprouter , fasthttp (for non standard http implementations, but fast) - Web Framework: echo , gin , fiber , beego , etc - Http client lib: most already covered by stdlib(net/http), so you rarely need extra lib for this, but if you really need some are: resty - CLI: cobra - Config: godotenv , viper - DB Drivers: sqlx , postgre , sqlite , mysql - nosql: redis , mongodb , elasticsearch - ORM: gorm , entgo , sqlc(codegen) - JS Transpiler: gopherjs - GUI: fyne - grpc: grpc - logging: zerolog - test: testify , gomock , dockertest - and many others you can find here

I understand that database/db is an abstraction. As to the driver, sorry, it completely went out of my head. The guide primarily focuses on https://github.com/go-sql-driver/mysql, which is also what I’m interested in.

Authentication method mismatch is not allowed to occur more than once. It is not a part of MySQL protocol. go-sql-driver also has the same rule.

If you are using https://github.com/go-sql-driver/mysql you need to add parseTime=true to the DSN to be able to use time.Time.

package models import ( "gorm.io/driver/mysql" "gorm.io/gorm" ) var DB *gorm.DB func ConnectDatabase() { // refer https://github.com/go-sql-driver/mysql#dsn-data-source-name for details dsn := "root:@tcp(127.0.0.1:3309)/fiber-pscale?charset=utf8mb4&parseTime=True&loc=Local" database, err := gorm.Open(mysql.Open(dsn), &gorm.Config{}) if err != nil { panic("failed to connect database") } // Migrate the users table database.AutoMigrate(&User{}) DB = database }

I've seen this error on line but there is no resolution to this error even when i run go get github.com/go-sql-driver/mysql

I use github.com/go-sql-driver/mysql package to use MySQL. The references are the official README.md, a sample code, the article Masao wrote (in Japanese), and the MariaDB document.

go-sql-driver/mysql 12.1k Stars, Used by 72.4k

> mysql_real_escape_string is still vulnerable when being used with some exotic character sets

Indeed -- mysql_real_escape_string "mostly" fixes this problem by requiring a connection as one of its args, and since it's usually aware of the connection state, it can check that to see if one of those exotic charsets is in-use. But the problem is that there are multiple ways to change the connection charset, some of which the driver is aware of (e.g. in PHP mysqli set_charset) but some it is not (running textual statements like SET NAMES or SET CHARACTER SET).

But generally an attacker won't ever have the ability to set an arbitrary exotic character set for the connection, unless they already have some other sql injection mechanism, in which case it's a moot point :)

Driver documentation also typically mentions this problem. For example, here's the doc for doing client-side param interpolation in the most popular MySQL driver for Golang: https://github.com/go-sql-driver/mysql#interpolateparams

It also explicitly detects if your initial connection settings attempt to use one of those charsets along with param interpolation, and throws an error if so: https://github.com/go-sql-driver/mysql/blob/21f789cd/dsn.go#...

> Couldn't one just save the extra round-trip with length-prefixed strings by sending the query together with the parameters in a single message?

AFAIK, no, not with the traditional MySQL binary protocol. The newer "X protocol" introduced in MySQL 5.7 does allow this, but it is not widely implemented in drivers.

However, you can use something like this https://github.com/go-reform/reform to help you with, I will call it automating the code writing. But I have always opted to one of the supported drivers and written a queries myself using for example this https://github.com/go-sql-driver/mysql.

Github repo: https://github.com/unionj-cloud/go-doudou Latest release: v1.3.2

Update documentation to latest version https://go-doudou.github.io

If you like sqlx, I recommend you to have a look at go-doudou built-in lightweight orm based on sqlx. It can do struct to table and table to struct migration/sync, generate dao layer code to simplify your single table CRUD operations, and it also can print SQL query with parameters substituded along with opentracing compatible trace ID for locating problems, and it will have more features coming such as cache layer... Here is the repo: https://github.com/unionj-cloud/go-doudou

I recommend go-doudou for you: https://github.com/unionj-cloud/go-doudou Here is online documentation: https://go-doudou.github.io/

Please take a look at https://github.com/unionj-cloud/go-doudou This is a microservice framework written in Go. I opened it a year ago. It's production ready, but there are a lot of featues not implemented yet. I hope community can help me build it together.

Go-doudou released v1.0.3: https://github.com/unionj-cloud/go-doudou/releases/tag/v1.0.3 Add full support for Alibaba Nacos configuration management and Ctrip Apollo configuration management Documentation: https://go-doudou.github.io/guide/configuration.html

Hi gophers, go-doudou released v1.0.0 version today: https://github.com/unionj-cloud/go-doudou/releases/tag/v1.0.0. And I finished online documentation for go-doudou though there is only English version: https://go-doudou.github.io. I also uploaded a real-world word cloud application to github: https://github.com/unionj-cloud/go-doudou-tutorials/tree/master/wordcloud. You can use this project as scaffold to build your microservices.

In this tutorial, I will introduce go-doudou microservice framework to you. Go-doudou has built-in service register, discover and fault tolerance features based on gossip protocol, and it uses gorilla/mux as http router, and uses golang interface as IDL(Interface Definition Language). Go-doudou is an IDL compiler and server/client code generator tool at first, then it becomes a microservice framework. Its RESTful version is stable and production ready, while grpc version is in early development.