how to make the full track play instead of the 30 second version

[dtrhg]

i made an application on swift using api bases spotify and i have all the tracks playing for 30 seconds, what should i do to make the tracks play completely

[wireframed]

are you using a premium account? Free accounts have limitations and that also applies when using API. 

[Ximzend]

As wireframed says, streaming on-demand is a Spotify Premium feature. If the user has Premium, you can make use of the following SDKs:

If you are developing for mobile: Spotify discontinued streaming in third-party apps. Instead, you make use of the App Remote SDK.

If you are developing for the web: you can make use of the Web Playback SDK.