fix(gateway): added limit 100 last measurements

Closes: #26
Signed-off-by: Klagarge <remi@heredero.ch>

gateway/src/RequestInflux.go

@@ -68,6 +68,8 @@ func (gh *Gateway) requestInflux(c *gin.Context) error {
 				|> filter(fn: (r) => r["user"] == %q)
 				|> filter(fn: (r) => r["room"] == %q)
 				|> filter(fn: (r) => r["device"] == %q)
+				|> sort(columns: ["_time"], desc: true)
+				|> limit(n: 100)
 				`, INFLUXDB_BUCKET, MEASUREMENT_NAME, user, room, device)
 	results, err := queryAPI.Query(context.Background(), query)
 	if err != nil {