How To Add Shortcodes

Go to wp-content/plugins/plugin-name/public/class-plugin-name-public.php

and add your shortcode name.

public function paynamics_donation_func( $atts ){ 

// your Code here..
}

next open wp-content/plugins/plugin-name/includes/class-plugin-name-loader.php and find the public function __construct() and add this code $this->shortcodes = array();. so from this

/**
* Initialize the collections used to maintain the actions and filters.
*
* @since    1.0.0
*/
public function __construct() {

	$this->actions = array();
	$this->filters = array();

}

to this

/**
* Initialize the collections used to maintain the actions and filters.
*
* @since    1.0.0
*/
protected $shortcodes;

public function __construct() {

	$this->actions = array();
	$this->filters = array();
        $this->shortcodes = array();
}

then find public function run() and add this at the bottom foreach ( $this->shortcodes as $hook ) { add_shortcode( $hook['hook'], array( $hook['component'], $hook['callback'] )); } so this will be look like this

/**
	 * Register the filters and actions with WordPress.
	 *
	 * @since    1.0.0
	 */
	public function run() {

		foreach ( $this->filters as $hook ) {
			add_filter( $hook['hook'], array( $hook['component'], $hook['callback'] ), $hook['priority'], $hook['accepted_args'] );
		}

		foreach ( $this->actions as $hook ) {
			add_action( $hook['hook'], array( $hook['component'], $hook['callback'] ), $hook['priority'], $hook['accepted_args'] );
		}
		
        
        foreach ( $this->shortcodes as $hook ) {
            add_shortcode(  $hook['hook'], array( $hook['component'], $hook['callback'] ));
        }

	}

Still, at class-plugin-name-loader.php add this code at the bottom.

/**
     * Add a new shortcode to the collection to be registered with WordPress
     *
     * @since     1.0.0
     * @param     string        $tag           The name of the new shortcode.
     * @param     object        $component      A reference to the instance of the object on which the shortcode is defined.
     * @param     string        $callback       The name of the function that defines the shortcode.
     */
    public function add_shortcode( $tag, $component, $callback, $priority = 10, $accepted_args = 2 ) {
        $this->shortcodes = $this->add( $this->shortcodes, $tag, $component, $callback, $priority, $accepted_args );
    }

Finally, you need to add a line to includes/class-plugin-name.php, in function define_public_hooks()

$this->loader->add_shortcode( 'your-shortcode-name', $plugin_public, 'your_shortcode_func' );

In the example at the top of this page 'your_shortcode_func' is called 'paynamics_donation_func'