Get youtube trends v3 country wise in Json?

As per YouTube guidelines, YouTube Feeds v2, is now deprecated. You should work with YouTube Data API v3.

For the most popular video:

https://www.googleapis.com/youtube/v3/videos?part=contentDetails&chart=mostPopular&regionCode=IN&maxResults=25&key=API_KEY

1. part:

   • The part names that you can include in the parameter value are:
     • id, snippet, contentDetails, fileDetails, liveStreamingDetails, localizations, player, processingDetails, recordingDetails, statistics, status, suggestions, and topicDetails

2. chart:

   • The chart parameter identifies the chart that you want to retrieve (string)
     • Example mostPopular

3. regionCode:

   • The parameter value is an ISO 3166-1 alpha-2 country code (string)

4. key:

   • Google Project API key

5. maxResults : Default value 5 ,

Read More

var maxVideos = 5;
   $(document).ready(function(){
  $.get(
    "https://www.googleapis.com/youtube/v3/videos",{
      part: 'snippet',
      chart: 'mostPopular',
      kind: 'youtube#videoListResponse',
      maxResults: maxVideos,
      regionCode: 'IN',
      key: 'Your_KEY_Here'},
      function(data){
        var output;
        $.each(data.items, function(i, item){
          console.log(item);
          videTitle = item.snippet.title;
                description = item.snippet.description;
                thumb = item.snippet.thumbnails.high.url;
                channelTitle = item.snippet.channelTitle;
                videoDate = item.snippet.publishedAt;
                Catagoryid = item.snippet.categoryId;
                cID = item.snippet.channelId;
          output = '<div class="maindiv"><div>' +
                        '<a data-fancybox-type="iframe" class="fancyboxIframe" href="watch.php?v=' + vidId + '" target="_blank" ><img src="' + thumb + '" class="img-responsive thumbnail" ></a>' +
                        '</div>' +
                        '<div class="input-group col-md-6">' +
                            '<h3 class="Vtitle"><a data-fancybox-type="iframe" class="fancyboxIframe" href="watch.php?v=' + vidId + '" target="_blank">' + videTitle + '</a></h3>'+
                        '</div><div  id="cTitle"><a href="https://www.youtube.com/channel/'+cID+'" target="_blank">'+channelTitle+'</a></div></div>' +
                    '<div class="clearfix"></div>';
          $('#trending').append(output);
        })

      }
    );
}); 

Save file as .js

And in HTML file make div or ul by id="trending"

like:

<div id="catagoryname"><h1>Trending</h1></div>
      <ul id="trending"></ul>

The check your out put.

• Note Don't forget to Replace your API KEY