How to Check if a String is a URL

· 123 words · 1 minute read

Here's a little snippet to determine if a string is well structured and considered valid url. This can be useful for pre-empting if a http call will work - or preventing failures from even occurring. In this snippet we're using a function to tidy this logic and make it reusable and we are essentially parsing the url and checking for any errors.

package main

import (

func main() {
    // = true

    // = false

    // = false

// isValidUrl tests a string to determine if it is a well-structured url or not.
func isValidUrl(toTest string) bool {
    _, err := url.ParseRequestURI(toTest)
    if err != nil {
        return false
    } else {
        return true

check if a url is valid

Image of Author Edd Turtle

Author:  Edd Turtle

Edd is the Lead Developer at Hoowla, a prop-tech startup, where he spends much of his time working on production-ready Go and PHP code. He loves coding, but also enjoys cycling and camping in his spare time.

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