Comment by coronapl

While queues definitely play an important role in microservices architecture, I think it’s worth clarifying that they’re not unique to it. A queue can fit perfectly in a monolith depending on the use case. I regularly use queues for handling critical operations that might require retrying, for having better visibility into failed jobs, ensuring FIFO guarantees, and more. Queues are such a useful tool for building any resilient architecture that framing them as primarily a microservices concern might cause unnecessary confusion.