Added config file

src/componets/AddModal.js

@@ -1,5 +1,6 @@
 import { useState } from 'react';
 import '../styles/Modal.css';
+import config from '../config.json';
 
 const AddModal = ({onExit}) => {
   const [name, setName] = useState('');
@@ -32,7 +33,8 @@ const AddModal = ({onExit}) => {
     }
 
     if(name != '' && isValidHttpUrl(link) && tag != '') {
-      fetch("/post", {
+      const address = config.client.api_address + ":" + config.server.port;
+      fetch(address + "/post", {
         
         // Adding method type
         method: "POST",

src/componets/List.js

@@ -1,8 +1,10 @@
 import '../styles/List.css';
+import config from '../config.json';
 
 const List = ({data}) => {
   function deleteEntity(id) {
-    fetch("/delete", {
+    const address = config.client.api_address + ":" + config.server.port;
+    fetch(address + "/delete", {
     
         // Adding method type
         method: "DELETE",
@@ -12,7 +14,7 @@ const List = ({data}) => {
         
         // Adding headers to the request
         headers: {
-            "Content-type": "application/json; charset=UTF-8"
+            "Content-type": "application/json; charset=UTF-8",
         }
     })
     .then(res => res.text())