How Can I Validate a URL end point in Javascript?

Question

I want to validate the url end point using regex. Example end point like: /user/update.

First I tried with (/[A-Za-z0-9_.:-~/]*) but also matches http://url.com/user/update with javascript regex. I want the string to only validate pass if it is equal to /user/update like end points

Does this answer your question? [Javascript regular expression to validate URL](https://stackoverflow.com/questions/8667070/javascript-regular-expression-to-validate-url) — Yogi, Oct 16 '22 at 06:21
No @Yogi it explains how to validate full url. I want to validate the string which only contain endpoint. — Pranu Pranav, Oct 16 '22 at 06:28

score 0 · Answer 1 · answered Oct 16 '22 at 05:56

0

You can use regex look behind technique to get the path after the .com with /(?<=.com).*/

const matchEndPoint = (str) => str.match(/(?<=.com).*/)

const [result] = matchEndPoint('http://url.com/user/update');

console.log(result)

answered Oct 16 '22 at 05:56

Mina

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The fourth bird · Answer 2 · 2022-10-16T10:07:04.310

You might use a pattern like

^\/[\w.:~-]+\/[\w.:~-]+$

Regex demo

Or for example not allowing consecutive dashes like -- and match one or more forward slashes:

^\/\w+(?:[.:~-]\w+)*(?:\/\w+(?:[.:~-]\w+)*)*$

Explanation

^ Start of string
\/\w+ Match / and 1+ word chars
(?:[.:~-]\w+)* Optionally repeat a char of the character class and 1+ word chars
(?: Non capture group
- \/\w+ Match / and 1+ word chars
- (?:[.:~-]\w+)* Optionally repeat a char of the character class and 1+ word chars
)* Close group and optionally repeat
$ End of string

Regex demo

How Can I Validate a URL end point in Javascript?

2 Answers2