Learn how to make POST API requests in Playwright using data stored in JSON files to maintain clean separation between test data and test logic. Discover how to create and read JSON files in Playwright, execute POST API requests with JSON data, log and validate API responses, and maintain reusable API test scripts. Master the technique of reading external JSON files to populate your API requests, enabling better test data management and more maintainable automation scripts. Explore practical implementation of JSON file handling in Playwright's API testing framework, including proper data parsing and response validation techniques that will enhance your API testing workflow and make your test scripts more organized and scalable.