Separated the code

src/config/mod.rs

@@ -0,0 +1,10 @@
+pub fn get_full() -> String {
+    get_address() + ":" + &get_port()
+}
+fn get_address() -> String {
+    String::from("0.0.0.0")
+}
+
+fn get_port() -> String {
+    String::from("3000")
+}