Converting Json to File and Vice Versa Using Gson

Writing JSON to a File

try (FileWriter writer = new FileWriter("payload.json")) {
    gson.toJson(user, writer);
}

Reading JSON From a File

try (FileReader reader = new FileReader("payload.json")) {
    User user = gson.fromJson(reader, User.class);
}

Why This Matters

Storing payloads as JSON files keeps large or reusable request bodies separate from test code, making a payload-driven framework easier to maintain and update.