NSB Service Collection

A collection of Drupal service examples focused on reusable backend logic.

What it shows

• CurrencyConverter: Converts amounts between currencies using external data --- see usage
• FileContentAnalyzer: Analyzes file content (lines, words, characters) --- see usage
• ScoreEvaluator: Evaluates numeric scores and returns normalized results (e.g. average, grade) --- see usage

---

Demo

Interactive demo available at:

/nsb-services-demo

You can pass query parameters:

/nsb-services-demo?amount=200&from=EUR&to=TRY&scores=10,20,30

---

Currency Converter Usage

$converter = \Drupal::service('nsb_service_collection.currency_converter');

$result = $converter->convert(100, 'USD', 'TRY');

---

File Content Analyzer Usage

$analyzer = \Drupal::service('nsb_service_collection.file_content_analyzer');

$result = $analyzer->analyze('/path/to/file.txt');

/*
Example output:
[
  'lines' => 10,
  'words' => 120,
  'characters' => 850,
  'most_frequent_words' => [
    'drupal' => 5,
    'service' => 4,
  ],
]
*/

---

Score Evaluator Usage

$average = $this->scoreEvaluator->average([80, 90, 100]);
$grade = $this->scoreEvaluator->grade($average);

---

Notes

• All services are registered via services.yml
• Uses dependency injection where applicable