Speaking Java

Have you ever come across a situation where you wanted to retry a method invocation automatically? Let's say you are calling a stock ticker service for a given stock and get a transient error. Since it is a transient error, you will try again and it may work in second attempt. But what if it doesn't? Well, you will try third time. But how many times can you try like that? More importantly after how much time will you retry? Imagine if you have a handful of methods like this. Your code will become convoluted with retry logic. Is there a better way? Well, if you are using spring/spring boot, you are in luck. Here is how you can do that using spring. Let's write our business service as follows. import java.time.LocalDateTime; import java.util.concurrent.CompletableFuture; import lombok.extern.slf4j.Slf4j; import org.springframework.retry.annotation.Backoff; import org.springframework.retry.annotation.Retryable; import org.springframework.scheduling.annotation.Async; import