java completablefuture chain 2 operations code example

Example 1: java completablefuture chain 2 operations

CompletableFuture<CompletableFuture<Double>> result = getUserDetail(userId)
.thenApply(user -> getCreditRating(user));

Example 2: java completablefuture chain 2 operations

CompletableFuture<User> getUsersDetail(String userId) {
	return CompletableFuture.supplyAsync(() -> {
		return UserService.getUserDetails(userId);
	});	
}

CompletableFuture<Double> getCreditRating(User user) {
	return CompletableFuture.supplyAsync(() -> {
		return CreditRatingService.getCreditRating(user);
	});
}