Golang : Validate email address

Problem :

You need a quick way to validate if a user has entered a valid email address without knowing how to write the regular expression to parse the email address.

Solution :

Use IsEmail function from github.com/asaskevich/govalidator package. For example :

 package main

 import (
 "fmt"
 "github.com/asaskevich/govalidator"
 )

 func main() {

 testAddress := "adamng@socketloop.com"

 valid := govalidator.IsEmail(testAddress)

 fmt.Printf("%s is a valid email address : %v \n", testAddress, valid)

 testAddress2 := ".adamng@socketloop.com"

 valid2 := govalidator.IsEmail(testAddress2)

 fmt.Printf("%s is a valid email address : %v \n", testAddress2, valid2)

 testAddress3 := "adamng()@socketloop.com"

 valid3 := govalidator.IsEmail(testAddress3)

 fmt.Printf("%s is a valid email address : %v \n", testAddress3, valid3)

 testAddress4 := "adamng_@socketloop.com"

 valid4 := govalidator.IsEmail(testAddress4)

 fmt.Printf("%s is a valid email address : %v \n", testAddress4, valid4)

 }

Output :

adamng@socketloop.com is a valid email address : true

.adamng@socketloop.com is a valid email address : false

adamng()@socketloop.com is a valid email address : false

adamng_@socketloop.com is a valid email address : true

Reference :

https://github.com/asaskevich/govalidator