Double Buffering with Cloudflare Queues

(bellone.com)

33 points | by b_llc 2 days ago

2 comments

b_llc 2 days ago

A stateless pattern I use to batch telemetry at the edge while driving Cloudflare write costs to zero.

[-]
- fwlr 5 hours ago
  Cool pattern. Critics will say “falsehoods programmers believe about time” but it’s a cloud service, any time oddity that would break this would also break a lot more important stuff, so it’s fine.
  Ugly code though.
```
  // env
  QUEUES = [EVEN_QUEUE, ODD_QUEUE]

  // producers
  env.QUEUES[hour % 2].send …

  // consumer
  env.QUEUES[1 + hour % 2]
```
  [-]
  - danhite 51 minutes ago
    
    > env.QUEUES[1 + hour % 2]
    // results in index 1 or 2 as js has precedence for */% over +-
    So something like the following, for your desired visual succinctness? ...
    env.QUEUES[hour % 2 ^ 1]
    // results in desired js index 0 or 1
    I wonder if any of you using AI code assistance regularly might tell an old hack like me if your code review tools would have caught such a bug?
- raffraffraff 2 hours ago
  
  Can you explain the pricing here?