first attempt of creating API-endpoint for retriving country information based on country code

main.go

 package main
 
 import (
+	"encoding/json"
 	"fmt"
 	"net/http"
+	"strings"
 )
 
+// Struktur for å lagre data om landene
+type Country struct {
+	Name struct {
+		Common   string `json:"common"`
+		Official string `json:"official"`
+	} `json:"name"`
+	Capital  []string          `json:"capital"`
+	Region   string            `json:"region"`
+	Languages map[string]string `json:"languages"`
+}
+
+// En funksjon som henter data fra det eksterne API-et ved landkode
+func getCountryDataByCode(countryCode string) (*Country, error) {
+	url := fmt.Sprintf("http://129.241.150.113:8080/v3.1/alpha/%s", countryCode)
+
+	resp, err := http.Get(url)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	var countries []Country
+	if err := json.NewDecoder(resp.Body).Decode(&countries); err != nil {
+		return nil, err
+	}
+
+	// Hvis vi ikke får noen treff
+	if len(countries) == 0 {
+		return nil, fmt.Errorf("country not found for code: %s", countryCode)
+	}
+
+	// Returner det første elementet i listen (siden vi forventer bare ett treff)
+	return &countries[0], nil
+}
+
 func handler(w http.ResponseWriter, r *http.Request) {
-	fmt.Fprintf(w, "Hello, Cloud Technologies!")
+	// Hent landkode fra path (for eksempel "/countryinfo/v1/info/NO")
+	parts := strings.Split(r.URL.Path, "/")
+	if len(parts) < 5 {
+		http.Error(w, "Invalid request format. Please use the format /countryinfo/v1/info/{countryCode}. Example: /countryinfo/v1/info/NO", http.StatusBadRequest)
+		return
+	}
+	countryCode := parts[4] // Landkoden er den 5. delen av pathen (fra 0)
+
+	// Hent data fra API ved landkode
+	country, err := getCountryDataByCode(countryCode)
+	if err != nil {
+		http.Error(w, fmt.Sprintf("Error retrieving  data for country code: %s. Check if the country code is correct.\nExample: /countryinfo/v1/info/NO", err.Error()), http.StatusInternalServerError)
+		return
+	}
+
+	// Returner JSON-respons
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(country)
 }
 
 func main() {
-	http.HandleFunc("/", handler)
+	http.HandleFunc("/countryinfo/v1/info/", handler) 
 	fmt.Println("Server running on port 8080...")
 	http.ListenAndServe(":8080", nil)
-}
\ No newline at end of file
+}
+// http://localhost:8080/countryinfo/v1/info/Norway
\ No newline at end of file