Player for whole song (with login) and volume control

[valalerie]

Hi there!

So we want to embed a player for our mobile app.
The problem with the i frame is, that it will only play random 30 second snippets and

sometimes it doesn't take you to the login page on the spotify app.
We can't solve the problem via the Spotify web player sdk because we only have the possibility to add more html code.

Since the iframe is not customisable we want to work with a web api and the request volume_percent=50.

Is there a simpler solution from Spotify ?