refining

main.go

@@ -5,25 +5,23 @@ import (
 	"net/http"
 	"net/http/httputil"
 	"net/url"
+	"strings"
 
 	"github.com/go-chi/chi/v5"
 	"github.com/go-chi/chi/v5/middleware"
 )
 
 func main() {
-	apiURL := "https://catfact.ninja"
 
 	r := chi.NewRouter()
 	r.Use(middleware.Logger)
 	r.Use(middleware.Recoverer)
 
 	// Parse the API URL
-	parsedURL, err := url.Parse(apiURL)
-	if err != nil {
-		log.Fatalf("Failed to parse API URL: %v", err)
-	}
 
-	r.Handle("/cats", reverseProxy(parsedURL, "/fact"))
+	r.Handle("/cats/*", reverseProxy("https://catfact.ninja"))
+
+	r.Handle("/coins/*", reverseProxy("https://api.coindesk.com/v1/bpi"))
 
 	r.Get("/", func(w http.ResponseWriter, r *http.Request) {
 		w.Write([]byte("root."))
@@ -34,21 +32,29 @@ func main() {
 }
 
 // reverseProxy forwards requests to the target URL with path rewriting
-func reverseProxy(target *url.URL, targetPath string) http.Handler {
+func reverseProxy(target string, prefixToStrip string) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		// Parse the target URL
+		parsedURL, err := url.Parse(target)
+		if err != nil {
+			log.Fatalf("Failed to parse target URL: %v", err)
+		}
+
 		// Create a reverse proxy
-		proxy := httputil.NewSingleHostReverseProxy(target)
+		proxy := httputil.NewSingleHostReverseProxy(parsedURL)
 
-		// Update the request path to the target API path
-		r.URL.Path = targetPath
-		r.URL.Host = target.Host
-		r.URL.Scheme = target.Scheme
+		// Rewrite the request path by stripping the prefix
+		originalPath := r.URL.Path
+		strippedPath := strings.TrimPrefix(originalPath, prefixToStrip)
 
-		// Set the Host header explicitly to match the target
-		r.Host = target.Host
+		// Update the proxied request URL
+		r.URL.Path = strippedPath // Use the stripped path in the proxy
+		r.URL.Scheme = parsedURL.Scheme
+		r.URL.Host = parsedURL.Host
+		r.Host = parsedURL.Host
 
-		// Debug: Log the final URL being proxied
-		log.Printf("Proxying request to: %s%s", target, targetPath)
+		// Debug: Log the final proxied URL
+		log.Printf("Proxying request to: %s%s", parsedURL, strippedPath)
 
 		// Serve the proxied request
 		proxy.ServeHTTP(w, r)