parseVideoId static method

String? parseVideoId(String url)

Parses a video id from url or if given a valid id as url returns itself. Returns null if the id couldn't be extracted.

Implementation

static String? parseVideoId(String url) {
  if (url.isNullOrWhiteSpace) {
    return null;
  }

  if (validateVideoId(url)) {
    return url;
  }

  // https://www.youtube.com/watch?v=yIVRs6YSbOM
  final regMatch = _regMatchExp.firstMatch(url)?.group(1);
  if (!regMatch.isNullOrWhiteSpace && validateVideoId(regMatch!)) {
    return regMatch;
  }

  // https://youtu.be/yIVRs6YSbOM
  final shortMatch = _shortMatchExp.firstMatch(url)?.group(1);
  if (!shortMatch.isNullOrWhiteSpace && validateVideoId(shortMatch!)) {
    return shortMatch;
  }

  // https://www.youtube.com/embed/yIVRs6YSbOM
  final embedMatch = _embedMatchExp.firstMatch(url)?.group(1);
  if (!embedMatch.isNullOrWhiteSpace && validateVideoId(embedMatch!)) {
    return embedMatch;
  }

  // https://www.youtube.com/shorts/yIVRs6YSbOM
  final shortsMatch = _shortsMatchExp.firstMatch(url)?.group(1);
  if (!shortsMatch.isNullOrWhiteSpace && validateVideoId(shortsMatch!)) {
    return shortsMatch;
  }
  return null;
}