Decoupling lets services that produce messages and services that process them operate independently. A queue buffers incoming work, so a processor can keep a steady pace even when orders arrive faster during busy periods. section 5.5
Orders during a sales rush
Banning Books adds each website order to a storage queue. A separate process retrieves and handles orders without needing to know which service created them. If retrieval fails, the message remains available. section 5.5
Figure 5.13 Using a Queue Storage for holding orders without overwhelming the order processing
Shows a queue holding orders so processing can continue without being overwhelmed by incoming demand. section 5.5
