Flutter Dart : How to extract youtube video ID from video URL?

Question

How to use dart regex to extract YouTube video ID from video URL?

Example URL

https://www.youtube.com/watch?v=SEkUienM2oY&t=1265s

or

https://m.youtube.com/watch?v=SEkUienM2oY&t=1265s

Return

SEkUienM2oY&t=1265s

Its working for me

  String getVideoID(String url) {
    url = url.replaceAll("https://www.youtube.com/watch?v=", "");
    url = url.replaceAll("https://m.youtube.com/watch?v=", "");
    return url;
  }

but how to do this with Regex??

score 11 · Answer 1 · edited Sep 08 '21 at 07:16

Without regex, I hope this will work perfectly Add this dependency into your pubspec.yaml file

youtube_player_flutter: ^6.1.0+4

try {

    videoIdd = YoutubePlayer.convertUrlToId("your url here");
    print('this is '+videoId);

  } on Exception catch (exception) {

    // only executed if error is of type Exception
    print('exception');

  } catch (error) {

    // executed for errors of all types other than Exception
     print('catch error');
   //  videoIdd="error";

}

Emma · Accepted Answer · 2020-08-02T14:59:29.143

5

If all our URLs are similar to our input string in the question, we can simply just extract those IDs with an expression similar to:

.*\?v=(.+?)&.+

and our desired output is in this capturing group: (.+?)

Demo

Reference

It seems we'd have 11 alphanumeric chars [A-Za-z0-9]{11} for that ID. That might be something unique if you'd want to design sophisticated expressions:

edited Aug 02 '20 at 14:59

answered Jun 09 '19 at 14:52

Emma

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URL structure with embeded video is missing with this regex. – Daniel Aug 02 '20 at 14:32
2

does not work with https://youtu.be/S5ZjEtC2aNo – Suresh Kumar Oct 16 '21 at 13:44

score 3 · Answer 3 · edited Nov 02 '21 at 09:21

3

Such Regex can parse Youtube video Urls without timing as well

.*\?v=(.+?)($|[\&])

Complete example in dart:

  String? _getYoutubeVideoIdByURL (String url) {
    final regex = RegExp(r'.*\?v=(.+?)($|[\&])', caseSensitive: false);

    try {
      if (regex.hasMatch(url)) {
        return regex.firstMatch(url)!.group(1);
      }
    } catch (e) {
      return null;
    }
  }

edited Nov 02 '21 at 09:21

Илья Зеленько

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answered Dec 29 '19 at 23:19

Sirelon

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here what is "text"? – Kamlesh May 28 '21 at 17:13
i get a yellow error saying "Redundant character escape '\&' in RegExp" – Texv May 01 '23 at 09:30

score 1 · Answer 4 · edited Jul 09 '20 at 19:31

static String convertUrlToId(String url, {bool trimWhitespaces = true}) {
  assert(url?.isNotEmpty ?? false, 'Url cannot be empty');
  if (!url.contains("http") && (url.length == 11)) return url;
  if (trimWhitespaces) url = url.trim();

  for (var exp in [
    RegExp(
        r"^https:\/\/(?:www\.|m\.)?youtube\.com\/watch\?v=([_\-a-zA-Z0-9]{11}).*$"),
    RegExp(
        r"^https:\/\/(?:www\.|m\.)?youtube(?:-nocookie)?\.com\/embed\/([_\-a-zA-Z0-9]{11}).*$"),
    RegExp(r"^https:\/\/youtu\.be\/([_\-a-zA-Z0-9]{11}).*$")
  ]) {
    Match match = exp.firstMatch(url);
    if (match != null && match.groupCount >= 1) return match.group(1);
  }

  return null;
}

score 0 · Answer 5 · edited Sep 08 '21 at 07:19

static String? convertUrlToId(String url, {bool trimWhitespaces = true}) {
    if (!url.contains("http") && (url.length == 11)) return url;
    if (trimWhitespaces) url = url.trim();

    for (var exp in [
      RegExp(
          r"^https:\/\/(?:www\.|m\.)?youtube\.com\/watch\?v=([_\-a-zA-Z0-9]{11}).*$"),
      RegExp(
          r"^https:\/\/(?:www\.|m\.)?youtube(?:-nocookie)?\.com\/embed\/([_\-a-zA-Z0-9]{11}).*$"),
      RegExp(r"^https:\/\/youtu\.be\/([_\-a-zA-Z0-9]{11}).*$")
    ]) {
      Match? match = exp.firstMatch(url);
      if (match != null && match.groupCount >= 1) return match.group(1);
    }

    return null;
}

Please add an explanation of how and why this solves the problem. Also it seems very similar to solution by @shanu12joshi. It would be good to describe how it differs. — Ruli, Sep 08 '21 at 07:19

Flutter Dart : How to extract youtube video ID from video URL?

5 Answers5

Demo

Reference