Very simple weather app

main.go

@@ -0,0 +1,78 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"github.com/joho/godotenv"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"os"
+)
+
+// Struct to hold the weather data
+type WeatherData struct {
+	Main struct {
+		Temp float64 `json:"temp"`
+	} `json:"main"`
+	Weather []struct {
+		Description string `json:"description"`
+	} `json:"weather"`
+}
+
+func serveHome(w http.ResponseWriter, r *http.Request) {
+	http.ServeFile(w, r, "index.html")
+}
+
+func handleWeather(w http.ResponseWriter, r *http.Request) {
+	city := r.URL.Query().Get("city")
+	if city == "" {
+		http.Error(w, "City parameter is required", http.StatusBadRequest)
+		return
+	}
+	err := godotenv.Load(".env")
+	if err != nil {
+		log.Fatalf("Error loading .env file: %s", err)
+	}
+	apiKey := os.Getenv("openWeatherKey")
+	url := fmt.Sprintf("http://api.openweathermap.org/data/2.5/weather?q=%s&appid=%s&units=metric", city, apiKey)
+
+	resp, err := http.Get(url)
+	if err != nil {
+		http.Error(w, "Error fetching weather data", http.StatusInternalServerError)
+		return
+	}
+	defer resp.Body.Close()
+
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		http.Error(w, "Error reading response body", http.StatusInternalServerError)
+		return
+	}
+
+	var weatherData WeatherData
+	err = json.Unmarshal(body, &weatherData)
+	if err != nil {
+		http.Error(w, "Error parsing JSON", http.StatusInternalServerError)
+		return
+	}
+
+	response := struct {
+		Temperature float64 `json:"temperature"`
+		Condition   string  `json:"condition"`
+	}{
+		Temperature: weatherData.Main.Temp,
+		Condition:   weatherData.Weather[0].Description,
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(response)
+}
+
+func main() {
+	http.HandleFunc("/", serveHome)
+	http.HandleFunc("/weather", handleWeather)
+
+	fmt.Println("Server is running on http://localhost:8080")
+	log.Fatal(http.ListenAndServe(":8080", nil))
+}