Operations with API

Hello everyone, I state that I have already created the site with WP and with plugins to upload and manage JSON files. But I would like to recreate it with Wappler.
I need help figuring out how to proceed.
In WP I used twig for some operations
example

{% for w in data%} {% if (w.time.status == 'LIVE') or (w.time.status == 'HT') or (w.time.status == 'FT') or (w.time.status == 'AET')%} {{w.scores.localteam_score}} {% else%} -- {% endif%} {% endfor%}

With Wappler I can display the data contained in the JSON file, but I don’t know how to operate with them,
eg how to use if then
Any tips or tutorials to watch …
Unfortunately, I’m not a programmer