Calling a method from controller using ajax

I’m trying to run a method from page controller using ajax. Here what I got until now:

On filter.php, I run the hooks:
add_action( 'wp_ajax_addBanco', ['App\PageProprietario', 'addBanco'] );
add_action( 'wp_ajax_nopriv_addBanco', ['App\PageProprietario', 'addBanco'] );

And on the controller, I wil stored the method:

public static function addBanco()

My question is: this is the correct way? The method must be static or could be public?

Static methods must be called differently.
Change this
add_action( 'wp_ajax_addBanco', ['App\PageProprietario', 'addBanco'] );
To this
add_action( 'wp_ajax_addBanco', ['App\PageProprietario::addBanco'] );

Thanks for the reply @codepuncher. But I believe the correct way is setting callback function outside the array. Like this:

add_action( 'wp_ajax_addBanco', 'App\PageProprietario::addBanco' );

File FrontPage.php

public static function exampleFunction()
    $name = array(
        'a' => 1,
        'b' => 2,
        'c' => 3
    return $name;      

You can use

File setup.php

namespace App;

function my_enqueue() {
wp_enqueue_script(‘sage/main.js’, asset_path(‘scripts/main.js’), [‘jquery’], null, true);
wp_localize_script( ‘sage/main.js’, ‘my_ajax_object’, array( ‘ajax_url’ => admin_url( ‘admin-ajax.php’ ) ) );

add_action( ‘wp_enqueue_scripts’, NAMESPACE .’\my_enqueue’ );

function callExampleFunction() {
$name = \FrontPage::exampleFunction();

add_action(‘wp_ajax_nopriv_call_exaple_function, NAMESPACE .’\callExampleFunction’ );
add_action(‘wp_ajax_admin_call_example’_function, NAMESPACE .’\callExampleFunction’ );

File common.js

// eslint-disable-next-line no-undef
url : my_ajax_object.ajax_url,
data : {
action: ‘call_example_function’,
success: function(response) {