refactor local_task

app/docroot/modules/custom/local_task/local_task.info.yml

+name: Local task
+description: Custom task
+package: Tasks
+
+type: module
+core: 8.x
+core_version_requirement: ^8 || ^9

app/docroot/modules/custom/local_task/local_task.links.task.yml

+mymodule.node.swapi:
+  route_name : local_task.task
+  title: Swapi
+  base_route: entity.node.canonical

app/docroot/modules/custom/local_task/local_task.routing.yml

+local_task.task:
+  path: '/node/{node}/swapi'
+  defaults:
+    _controller: '\Drupal\local_task\Controller\SwapiLocalTask::exampleTabContent'
+    _title_callback: '\Drupal\Core\Entity\Controller\EntityController::title'
+  requirements:
+    _custom_access: '\Drupal\local_task\Controller\SwapiLocalTask::access'

app/docroot/modules/custom/local_task/src/Controller/SwapiLocalTask.php

+<?php
+
+namespace Drupal\local_task\Controller;
+
+use Drupal\Core\Access\AccessResult;
+use Drupal\Core\Controller\ControllerBase;
+use Drupal\Core\Session\AccountInterface;
+use Drupal\node\NodeInterface;
+
+class SwapiLocalTask extends ControllerBase {
+
+  public function exampleTabContent($node) {
+    $nid = $node;
+    $api = \Drupal::service('swapi.service_swapi');
+    $node = \Drupal::entityTypeManager()
+      ->getStorage('node')
+      ->load($nid);
+    $bundle = $node->bundle();
+    $swapi_id = $node->get('field_swapi_id')->getValue();
+    $url = 'https://swapi.dev/api/' . $bundle . '/' . $swapi_id[0]['value'];
+    $result = $api->setUrl($url)->getResponse();
+
+    foreach ($result as $key => $value) {
+      if (is_array($value)) {
+        $build = $build . "\"$key\"" . ": [<br>";
+        foreach ($value as $value2) {
+          $build = $build . " \"$value2\"" . ",<br>";
+        }
+        $build = $build . "],<br>";
+      } else {
+        $build = $build . "\"$key\": \"$value\",<br>";
+      }
+    }
+    $build = substr($build,0,-5);
+    return ['#markup' => $build];
+  }
+  public function access(AccountInterface $account, $node) {
+    $nid = $node;
+    $node = \Drupal::entityTypeManager()
+      ->getStorage('node')
+      ->load($nid);
+    $bundle = $node->bundle();
+    return AccessResult::allowedIfHasPermission($account, "edit any $bundle content");
+  }
+}