Is there anything in the Discourse API that can help you like a post?

Yes, see How to reverse engineer the Discourse API and Discourse API Docs

what is the “post_action_type_id”?

For like it is 2 as you can check via How to reverse engineer the Discourse API

Come si può mettere 'mi piace' a un post specifico tramite API?

Falco (Falco) 20 Aprile 2022, 3:58pm 2

Argomento		Risposte	Visualizzazioni
Getting who liked a post from the API Development	7	2867	Maggio 18, 2022
Get number of likes for a single post? Development rest-api	7	2068	Aprile 19, 2023
How to unlike a topic or post Development rest-api	6	448	Giugno 24, 2024
Discourse Likes API Development rest-api	6	1252	Dicembre 16, 2022
How to get the likers of the topic with api Support	6	1549	Giugno 8, 2024