How to create vast tag with javascript ad code creative

How can I (via Google's DFP or any other method) generate VAST ad tags for javascript ad code, so I can show the ad as pre-roll or mid-roll on videos.

my player supports only vast tags ... so I can not integrate javaspcrit ad codes with it directly.

basically, I want to ad my ad network to DFP so DFP creates the VAST tag and handled this creative.

I assume you are referring to VPAID if you are talking about javascript ads?

Integrating VPAID from scratch can be a complex proces, because the spec specifies a lot of technical requirements for both the player and the ad unit.

There are several ways you can tackle this:

• Either you write the functionality on your own (which can take a while)
• OR you make an integration with Google IMA. They have a custom API where you can integrate with.
• OR you use a player that supports VPAID or has an integration with Google IMA, such as THEOplayer.