diff --git a/part2/2.15-2.18/db.json b/part2/2.15-2.18/db.json
index 46064dc..c74d6eb 100644
--- a/part2/2.15-2.18/db.json
+++ b/part2/2.15-2.18/db.json
@@ -29,6 +29,11 @@
       "name": "Thao",
       "number": "0934023910",
       "id": 6
+    },
+    {
+      "name": "Minh",
+      "number": "023124",
+      "id": 7
     }
   ]
-}
+}
\ No newline at end of file
diff --git a/part2/2.15-2.18/src/App.js b/part2/2.15-2.18/src/App.js
index 2328097..d50dfb1 100644
--- a/part2/2.15-2.18/src/App.js
+++ b/part2/2.15-2.18/src/App.js
@@ -1,5 +1,5 @@
 import React, { useState, useEffect } from 'react'
-import axios from 'axios'
+//import axios from 'axios'
 import Filter from './components/Filter'
 import PersonForm from './components/PersonForm'
 import Person from './components/Person'
@@ -48,9 +48,9 @@ const App = () => {
     const check = persons.filter(person => person.name === newName )
     check.length === 0 ? setPersons(persons.concat(newPerson)) : alert(`${newName} is already added to phonebook`)
 
-    if (check.length ===0) {
-      axios
-        .post('http://localhost:3001/persons', newPerson)
+    if (check.length === 0) {
+      Contact
+        .updateContact(newPerson)
         .then(response => {
             console.log(response)
         })
diff --git a/part2/2.15-2.18/src/services/Contact.js b/part2/2.15-2.18/src/services/Contact.js
index b9e2291..5cdc537 100644
--- a/part2/2.15-2.18/src/services/Contact.js
+++ b/part2/2.15-2.18/src/services/Contact.js
@@ -8,18 +8,20 @@ const getContact = () => {
     return contact.then(response => response.data)
 }
 
- /*
-const updateContact = newObject => {
-        return axios.post(baseUrl, newObject)
+ 
+const updateContact = newPerson => {
+    const contact = axios.post(baseUrl, newPerson)
+    return contact.then(response => response.data)
 }
-   
 
+   
+/*
     const update = (id, newObject) => {
         return axios.put(`${baseUrl}/${id}`, newObject)
     }*/
 
 const Contact = {
-    getContact
+    getContact, updateContact
 }
 
 export default Contact
\ No newline at end of file