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Refresh topics every 60 seconds in the background

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Dave Gallant
2023-02-04 18:04:09 -05:00
parent 9f525a2324
commit 81a161a350
2 changed files with 9 additions and 10 deletions
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18
backend/app.go
View File

@@ -82,20 +82,18 @@ func (a *App) listTopics(w http.ResponseWriter, r *http.Request) {
ctx, span := tracer.Start(ctx, "list-topics") ctx, span := tracer.Start(ctx, "list-topics")
defer span.End() defer span.End()
if time.Since(a.LastRefresh).Minutes() > 1 {
a.refreshTopics()
} else {
log.Debug().Msg("Topics cache has not expired. Using existing.")
}
respondWithJSON(w, http.StatusOK, a.CurrentTopics) respondWithJSON(w, http.StatusOK, a.CurrentTopics)
} }
func (a *App) refreshTopics() { func (a *App) refreshTopics() {
latestTopics := a.getDeals(9, 1, 6) for {
latestTopics = a.updateScores(latestTopics) latestTopics := a.getDeals(9, 1, 6)
log.Debug().Msg("Refreshing topics") latestTopics = a.updateScores(latestTopics)
a.CurrentTopics = latestTopics log.Debug().Msg("Refreshing topics")
a.LastRefresh = time.Now() a.CurrentTopics = latestTopics
a.LastRefresh = time.Now()
time.Sleep(60 * time.Second)
}
} }
func (a *App) updateScores(t []Topic) []Topic { func (a *App) updateScores(t []Topic) []Topic {

1
backend/main.go
View File

@@ -35,5 +35,6 @@ func main() {
a.Initialize() a.Initialize()
go a.refreshTopics()
a.Run(httpPort) a.Run(httpPort)
} }