Managing everything is WordPress is messy, so I wanted to send a POST request when a post is published

tands.php

<?php
/**
 * @package tands
 * @version 0.1
 */
/*
Plugin Name: Trigger and Shoot by Yoosuf
Plugin URI: https://github.com/yoosuf
Description: This plugin simply pass the post details to where ever you want for what ever the porpose.
Author: Yoosuf Muhammad
Version: 0.1
Author URI: https://github.com/yoosuf
*/


function on_all_status_transitions( $new_status, $old_status, $post ) {

	if ('publish' == $new_status && 'publish' != $old_status && 'trash' != $old_status) {

		trigger_and_shoot($post);
	}
}
add_action(  'transition_post_status',  'on_all_status_transitions', 10, 3 );




/**
 * @param $post
 */
function trigger_and_shoot($post) {

	$post_title = get_the_title( $post_id );
	$post_url = get_permalink( $post_id );

	$category = get_the_category( $post );

	$set_up = [
	        'X-API-Key: YOUR API KEY',
		'Content-Type: application/x-www-form-urlencoded'
	];

    	$post_data="id=".$post_id."&title=".$post_title."&content=".$category[0]->cat_name .": ".$post_title."&category_id=".$category[0]->term_id."&category=".$category[0]->cat_name;

    	$url="URL FOR THE SERVICE";

	$ch = curl_init();
	curl_setopt($ch, CURLOPT_URL, $url);
	curl_setopt($ch, CURLOPT_POST, 1);
	curl_setopt($ch, CURLOPT_HTTPHEADER, $set_up);
	curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
	curl_exec($ch);
}