Config handler response time spikes
Review this Go HTTP handler serving a rarely-changing config blob.
What a strong answer looks like
Separate real bugs from style. Rank issues by severity, point at the root cause rather than the symptom, and suggest a concrete fix, specific and kind.
0:00 of about 25 min
Mark a line and say what kind of problem it is.0 findings
1func configHandler(w http.ResponseWriter, r *http.Request) {
2 cfg, err := loadConfigFromDB() // ~50ms, changes a few times a day
3 if err != nil {
4 http.Error(w, "error", 500)
5 return
6 }
7 b, _ := json.Marshal(cfg)
8 w.Header().Set("Content-Type", "application/json")
9 w.Write(b)
10}
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Run or narrate your approach, then ask the coach.