Added weather route and embedded cache system

main.go

@@ -0,0 +1,41 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"strconv"
+
+	"github.com/ceticamarco/zephyr/controller"
+	"github.com/ceticamarco/zephyr/types"
+)
+
+func main() {
+	// Retrieve listening port, API token and cache time-to-live from environment variables
+	var (
+		port   = os.Getenv("ZEPHYR_PORT")
+		token  = os.Getenv("ZEPHYR_TOKEN")
+		ttl, _ = strconv.ParseInt(os.Getenv("ZEPHYR_CACHE_TTL"), 10, 8)
+	)
+
+	if port == "" || token == "" || ttl == 0 {
+		log.Fatalf("Environment variables not set")
+	}
+
+	// Initialize cache and vars
+	cache := types.InitCache()
+	vars := types.Variables{
+		Token:      token,
+		TimeToLive: int8(ttl),
+	}
+
+	// API endpoints
+	http.HandleFunc("/weather/", func(res http.ResponseWriter, req *http.Request) {
+		controller.GetWeather(res, req, &cache.WeatherCache, &vars)
+	})
+
+	listenAddr := fmt.Sprintf(":%s", port)
+	log.Printf("Server listening on %s", listenAddr)
+	http.ListenAndServe(listenAddr, nil)
+}