curl -X GET "https://api.contazen.ro/v1/expense-categories/5" \
  -H "Authorization: Bearer YOUR_API_KEY"

curl -X GET "https://api.contazen.ro/v1/expense-categories/5?include_children=true" \
  -H "Authorization: Bearer YOUR_API_KEY"

const categoryId = 5;

const response = await fetch(`https://api.contazen.ro/v1/expense-categories/${categoryId}`, {
  method: 'GET',
  headers: {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Content-Type': 'application/json'
  }
});

const data = await response.json();
console.log('Category details:', data.category);

const categoryId = 5;
const params = new URLSearchParams({
  include_children: 'true'
});

const response = await fetch(`https://api.contazen.ro/v1/expense-categories/${categoryId}?${params}`, {
  method: 'GET',
  headers: {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Content-Type': 'application/json'
  }
});

const data = await response.json();
console.log('Category with children:', data.category);
if (data.category.children) {
  console.log('Subcategories:', data.category.children.length);
}

$categoryId = 5;

$curl = curl_init();

curl_setopt_array($curl, [
    CURLOPT_URL => "https://api.contazen.ro/v1/expense-categories/{$categoryId}",
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => [
        'Authorization: Bearer YOUR_API_KEY',
        'Content-Type: application/json'
    ]
]);

$response = curl_exec($curl);
$data = json_decode($response, true);
curl_close($curl);

echo 'Category: ' . $data['category']['name'];
echo ' (Type: ' . $data['category']['type'] . ')';

$categoryId = 5;
$params = http_build_query([
    'include_children' => 'true'
]);

$curl = curl_init();

curl_setopt_array($curl, [
    CURLOPT_URL => "https://api.contazen.ro/v1/expense-categories/{$categoryId}?{$params}",
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => [
        'Authorization: Bearer YOUR_API_KEY',
        'Content-Type: application/json'
    ]
]);

$response = curl_exec($curl);
$data = json_decode($response, true);
curl_close($curl);

echo 'Category: ' . $data['category']['name'] . "\n";
if (isset($data['category']['children'])) {
    echo 'Subcategories: ' . count($data['category']['children']) . "\n";
    foreach ($data['category']['children'] as $child) {
        echo '  - ' . $child['name'] . " (ID: {$child['id']})\n";
    }
}

{
  "success": true,
  "category": {
    "id": 5,
    "name": "Marketing Expenses",
    "parent_id": 0,
    "is_default": false,
    "is_visible": true,
    "type": "custom"
  }
}

{
  "success": true,
  "category": {
    "id": 2,
    "name": "Travel & Transportation",
    "parent_id": 0,
    "is_default": true,
    "is_visible": true,
    "type": "system",
    "children": [
      {
        "id": 15,
        "name": "Fuel",
        "parent_id": 2,
        "is_default": false,
        "is_visible": true,
        "type": "custom"
      },
      {
        "id": 16,
        "name": "Public Transport",
        "parent_id": 2,
        "is_default": false,
        "is_visible": true,
        "type": "custom"
      },
      {
        "id": 17,
        "name": "Hotel Accommodation",
        "parent_id": 2,
        "is_default": false,
        "is_visible": true,
        "type": "custom"
      }
    ]
  }
}

{
  "success": true,
  "category": {
    "id": 15,
    "name": "Fuel",
    "parent_id": 2,
    "is_default": false,
    "is_visible": true,
    "type": "custom"
  }
}

{
  "success": false,
  "error": {
    "message": "Category ID is required",
    "type": "invalid_request_error",
    "code": "parameter_missing",
    "param": "id"
  }
}

{
  "success": false,
  "error": {
    "message": "Category not found",
    "type": "invalid_request_error",
    "code": "resource_missing",
    "param": "id"
  }
}

{
  "success": false,
  "error": {
    "message": "Unauthorized. API key is required.",
    "type": "authentication_error",
    "code": "api_key_required"
  }
}