Play playlist or track by permalink not trackid

问题

I have an embedded player that works by trackId but:

I but I am trying to get non-technical users to embed the tracks or playlists into pages.
I sometimes need to regenerate the playlists

For both these reasons it is inconvenient that the player needs trackId. Is there a way I can play off the permalink?

Thanks, Martin.

PS. My current iframe code looks like this:

src="https://w.soundcloud.com/player/?url=http%3A%2F%2Fapi.soundcloud.com%2Fplaylists%2F$paramPlaylistID"

This iFrame code (from Comment #1) doesn't work:

src="https://w.soundcloud.com/player/?url=http://api.soundcloud.com/resolve.json?url=http%3A%2F%2Fapi.soundcloud.com%2Fplaylists%2F$paramPermalink"

Is there something better I can use? I recognize that I may need to do something to the url=...url= but I'm not clear whether resolve works with this player or whether the answer only applies to if I'd made a custom player.

Thanks again, M.

回答1:

See SoundCloud's API docs on resolve:

The resolve resource allows you to lookup and access API resources when you only know the SoundCloud.com URL.
$ curl -v 'http://api.soundcloud.com/resolve.json?url=http://soundcloud.com/matas/hobnotropic&client_id=YOUR_CLIENT_ID'

< HTTP/1.1 302 Moved Temporarily
< Location: http://api.soundcloud.com/tracks/49931.json
This request will resolve and redirect to the API resource URL for the track http://soundcloud.com/matas/hobnotropic. Just follow the redirect and you will get the representation you want. The resolver supports URLs for:

users

tracks

playlists (sets)

groups

apps

You can take a the permalink from a user and get the track or playlist ID like so:

function getSoundCloudId(permalink, callback) {
  var resolve = 'http://api.soundcloud.com/resolve.json?client_id=YOUR_CLIENT_ID&url=';
  var request = new XMLHttpRequest();
  request.onreadystatechange = function(){
    if (this.readyState === 4 && this.responseText) {
      var response = JSON.parse(this.responseText);
      if (response.id) callback(response.id);
    }
  };
  request.open('get', resolve+permalink, true);
  request.send();
}

Then you use it like so:

getSoundCloudId('https://soundcloud.com/matas/sets/library-project', function(id){
  // Do stuff with the ID
  console.log(id);
})

来源：https://stackoverflow.com/questions/19351797/play-playlist-or-track-by-permalink-not-trackid

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soundcloud