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Add summary cache.

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This commit is contained in:
Ferdinand Mütsch 2019-05-19 20:14:57 +02:00
parent a157edd03b
commit d5253ba46b
1 changed files with 19 additions and 4 deletions
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23
routes/summary.go
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@ -16,6 +16,8 @@ const (
IntervalLastYear string = "year"
)
var summaryCache map[time.Time]*models.Summary
type SummaryHandler struct {
SummarySrvc *services.SummaryService
}
@ -26,6 +28,8 @@ func (h *SummaryHandler) Get(w http.ResponseWriter, r *http.Request) {
return
}
tryInitCache()
user := r.Context().Value(models.UserKey).(*models.User)
params := r.URL.Query()
from, err := utils.ParseDate(params.Get("from"))
@ -47,11 +51,22 @@ func (h *SummaryHandler) Get(w http.ResponseWriter, r *http.Request) {
}
}
summary, err := h.SummarySrvc.GetSummary(from, utils.StartOfDay(), user)
if err != nil {
w.WriteHeader(http.StatusInternalServerError)
return
if _, ok := summaryCache[from]; !ok {
// Cache Miss
summary, err := h.SummarySrvc.GetSummary(from, utils.StartOfDay(), user) // 'to' is always constant
if err != nil {
w.WriteHeader(http.StatusInternalServerError)
return
}
summaryCache[from] = summary
}
summary, _ := summaryCache[from]
utils.RespondJSON(w, http.StatusOK, summary)
}
func tryInitCache() {
if summaryCache == nil {
summaryCache = make(map[time.Time]*models.Summary)
}
}