Facebook Events via http in ionic app

I have already searched a lot to put the events of our facebook page in a nice way in the app.
And even if there are no events on facebook there is a nice text.

Now this is possible with the if construction, but how can I retrieve the data from facebook in the right way.

I’ve already watched a lot, but I can not.
There are not really movies about it, or clear delusions.
A lot to find to log in with facebook, but I do not need that.

Thank you for your reactions.
(translates from Dutch with Google)