refactor: internal package

internal/httpx/httpx.go

@@ -0,0 +1,19 @@
+// Package httpx provides helper functions for making HTTP requests.
+package httpx
+
+import (
+	"net/http"
+	"time"
+)
+
+var client = Client(&http.Client{Timeout: 5 * time.Second})
+
+// Client is something that can send HTTP requests.
+type Client interface {
+	Do(req *http.Request) (*http.Response, error)
+}
+
+// Do sends an HTTP request and returns an HTTP response.
+func Do(req *http.Request) (*http.Response, error) {
+	return client.Do(req)
+}