JSON teaser


i have some JSON feed generated by joomla website, and i want to call it into my app. What i want to know is if there is any way to create a list that can display just a part of my feed and on tap the full content of that post to come up.
PS. there are more full articles posts in the same feed and the teaser display may be by a number of characters.

I would appreciate any clue.

If you want to have a look my feed is:

Create a codepen with what you have so far. You could fork this template, and then paste the link here and see if we can help.