Have you applied the BDD methodology when writing tests using REST Assured?

Yes, the BDD (Behavior Driven Development) methodology works well with REST Assured for writing API tests. BDD allows describing tests in the form of scenarios understandable by both technical specialists and business analysts. In REST Assured, you can use syntax close to natural language, for example, with methods given(), when(), then(), which reflect the BDD structure:

given()
    .header("Content-Type", "application/json")
    .body(requestBody)
.when()
    .post("/api/users")
.then()
    .statusCode(201)
    .body("id", notNullValue());

This approach helps clearly describe API behavior and makes test maintenance easier.