Embed Youtube video in Rails app

Hello.

How is possible to embed an existing video an show it in a page with rails?

I followed this guide with yt gem:
https://www.sitepoint.com/youtube-api-version-3-rails/
So now I can post a youtube link and save it in the databse...
but doesn't explain how to embed the video and show it directly in the app...

Thank you very much!

The way I embed youtube videos on GoRails is that I have an Episode model with a column for youtube_id and when you click on an episode I embed it like the following (no need to use their API which is great):

<iframe src='https://www.youtube.com/embed/<%= @episode.youtube_id %>?rel=0&autoplay=<%= params[:autoplay] || 0 %>' frameborder='0' allowfullscreen></iframe>

Thank you very much!!! Your answers are very helpful.

Could you add a go rails episode on this topic?

I tried the above and it doesn't work. Where exactly do you place the youtube video id?

@Zanger02, right where it says <%= @episode.youtube_id %> in

<iframe src='https://www.youtube.com/embed/<%= @episode.youtube_id %>?rel=0&autoplay=<%= params[:autoplay] || 0 %>' frameborder='0' allowfullscreen></iframe>

Which would render something like:

<iframe class="embed-responsive-item" src="https://www.youtube.com/embed/lQOLrycmXC4?enablejsapi=1&amp;autoplay=1" frameborder="0" allowfullscreen=""></iframe>

This assumes you're passing an @episode object that has an attribute named youtube_id - your specific app may vary.

Did someone try using video_tag or video.js? I working on a product that needs to display different video sources and having to embed different iframes/players depending on the source is not quite an option.

I second that Chris' answer should suffice. To answer Stephane, I usually have my model with a second column with the source, like YouTube or Vimeo. I create some logic that I can reuse on the view end where it reads which video source to use, then includes the appropriate code to load the video.