Returning a large result set meant materialising the whole thing into a list, and the async equivalent of a generator did not exist until C# 8. This is…
Every broker worth using delivers at least once, so a handler will see the same message twice — on a redelivery after a crash, or when an acknowledgement…
Reading a Redis stream directly gives every consumer every entry, which is right for fanout and wrong for a work queue. The > means entries never delivered to…
An effect with an empty dependency array captures the first render’s variables permanently, so a timer set up once reads values that stopped being current seconds later. This…
Scheduling work for later by storing a row and polling it is a scheduler you now maintain, and every broker worth using has a delay mechanism already. The…
4.3 made Messenger stable, and the registration mechanism is autoconfiguration on an interface — so a handler is a class with one method and no boilerplate. The message…