diff --git a/jaas-client/src/App.css b/jaas-client/src/App.css
new file mode 100644
index 0000000..74b5e05
--- /dev/null
+++ b/jaas-client/src/App.css
@@ -0,0 +1,38 @@
+.App {
+  text-align: center;
+}
+
+.App-logo {
+  height: 40vmin;
+  pointer-events: none;
+}
+
+@media (prefers-reduced-motion: no-preference) {
+  .App-logo {
+    animation: App-logo-spin infinite 20s linear;
+  }
+}
+
+.App-header {
+  background-color: #282c34;
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  font-size: calc(10px + 2vmin);
+  color: white;
+}
+
+.App-link {
+  color: #61dafb;
+}
+
+@keyframes App-logo-spin {
+  from {
+    transform: rotate(0deg);
+  }
+  to {
+    transform: rotate(360deg);
+  }
+}
diff --git a/jaas-client/src/App.js b/jaas-client/src/App.js
new file mode 100644
index 0000000..d1c880b
--- /dev/null
+++ b/jaas-client/src/App.js
@@ -0,0 +1,35 @@
+/*
+  Company: Savoir-faire Linux
+  Author: Larbi Gharib <larbi.gharib@savoirfairelinux.com>
+  UI Project inspired from https://scrimba.com/p/pbNpTv/cbZBmfV
+  License: AGPL-3
+*/
+
+import React from 'react';
+//import logo from './logo.svg';
+import './App.css';
+
+
+import { BrowserRouter as Router, Route, Switch, Link, Redirect } from 'react-router-dom';
+
+import SignInPage from "./pages/index.jsx";
+import Jaas from "./pages/jaas.jsx"
+import NotFoundPage from "./pages/404.jsx"
+
+
+class App extends React.Component {
+
+  render() {
+    return <Router>
+      <Switch>
+        <Route exact path="/" component={SignInPage} />
+        <Route to="/Jaas" component={Jaas} />
+        <Route exact path="/404" component={NotFoundPage} />
+        <Redirect to="/404" />
+      </Switch>
+
+    </Router>
+  }
+}
+
+export default App;
\ No newline at end of file
diff --git a/jaas-client/src/App.test.js b/jaas-client/src/App.test.js
new file mode 100644
index 0000000..4db7ebc
--- /dev/null
+++ b/jaas-client/src/App.test.js
@@ -0,0 +1,9 @@
+import React from 'react';
+import { render } from '@testing-library/react';
+import App from './App';
+
+test('renders learn react link', () => {
+  const { getByText } = render(<App />);
+  const linkElement = getByText(/learn react/i);
+  expect(linkElement).toBeInTheDocument();
+});
diff --git a/jaas-client/src/components/ContactList.js b/jaas-client/src/components/ContactList.js
new file mode 100644
index 0000000..af232a0
--- /dev/null
+++ b/jaas-client/src/components/ContactList.js
@@ -0,0 +1,16 @@
+import React from 'react'
+
+class ContactList extends React.Component {
+    render() {
+
+        return (
+            <div className="rooms-list">
+                <ul>
+                    <h3>Liste de contacts</h3>
+                </ul>
+            </div>
+        )
+    }
+}
+
+export default ContactList
\ No newline at end of file
diff --git a/jaas-client/src/components/Header.js b/jaas-client/src/components/Header.js
new file mode 100644
index 0000000..22a6c74
--- /dev/null
+++ b/jaas-client/src/components/Header.js
@@ -0,0 +1,43 @@
+import React from 'react'
+import Button from '@material-ui/core/Button';
+import Menu from '@material-ui/core/Menu';
+import MenuItem from '@material-ui/core/MenuItem';
+import { useHistory } from "react-router-dom";
+
+export default function Header() {
+    const history = useHistory();
+
+    const [anchorEl, setAnchorEl] = React.useState(null);
+
+    const handleClick = (event) => {
+        setAnchorEl(event.currentTarget);
+    };
+
+    const handleClose = () => {
+        setAnchorEl(null);
+    };
+
+    const disconnect = () => {
+        let path = `/`;
+        history.push(path);
+    }
+
+    return (
+        <div>
+            <Button aria-controls="simple-menu" aria-haspopup="true" onClick={handleClick}>
+                Menu
+      </Button>
+            <Menu
+                id="simple-menu"
+                anchorEl={anchorEl}
+                keepMounted
+                open={Boolean(anchorEl)}
+                onClose={handleClose}
+            >
+                <MenuItem onClick={handleClose}>Profile</MenuItem>
+                <MenuItem onClick={handleClose}>Mon compte</MenuItem>
+                <MenuItem onClick={disconnect}>Déconnexion</MenuItem>
+            </Menu>
+        </div>
+    );
+}
\ No newline at end of file
diff --git a/jaas-client/src/components/Message.js b/jaas-client/src/components/Message.js
new file mode 100644
index 0000000..2e1c086
--- /dev/null
+++ b/jaas-client/src/components/Message.js
@@ -0,0 +1,12 @@
+import React from 'react'
+
+function Message(props) {
+    return (
+        <div className="message">
+            <div className="message-username">{props.username}</div>
+            <div className="message-text">{props.text}</div>
+        </div>
+    )
+}
+
+export default Message
\ No newline at end of file
diff --git a/jaas-client/src/components/MessageList.js b/jaas-client/src/components/MessageList.js
new file mode 100644
index 0000000..08bdbea
--- /dev/null
+++ b/jaas-client/src/components/MessageList.js
@@ -0,0 +1,22 @@
+import React from 'react'
+import Message from './Message'
+
+
+class MessageList extends React.Component {
+    render() {
+        return (
+            <div className="message-list">
+
+                {
+                    this.props.messages.map((message, index) => {
+                        /*DUMMY_DATA.map((message, index) => {*/
+                        return (
+                            <Message key={index} username={message.senderId} text={message.text} />
+                        )
+                    })}
+            </div>
+        )
+    }
+}
+
+export default MessageList
\ No newline at end of file
diff --git a/jaas-client/src/components/NewContactForm.js b/jaas-client/src/components/NewContactForm.js
new file mode 100644
index 0000000..ef590c5
--- /dev/null
+++ b/jaas-client/src/components/NewContactForm.js
@@ -0,0 +1,19 @@
+import React from 'react'
+
+class NewContactForm extends React.Component {
+    render() {
+        return (
+            <div className="new-room-form">
+                <form>
+                    <input
+                        type="text"
+                        placeholder="Ajouter un contact"
+                        required />
+                    <button id="create-room-btn" type="submit">+</button>
+                </form>
+            </div>
+        )
+    }
+}
+
+export default NewContactForm
\ No newline at end of file
diff --git a/jaas-client/src/components/SendMessageForm.js b/jaas-client/src/components/SendMessageForm.js
new file mode 100644
index 0000000..e52635d
--- /dev/null
+++ b/jaas-client/src/components/SendMessageForm.js
@@ -0,0 +1,51 @@
+import React from 'react'
+import InputEmoji from "react-input-emoji";
+
+class SendMessageForm extends React.Component {
+
+    constructor() {
+        super()
+        this.state = {
+            message: ''
+        }
+        this.handleChange = this.handleChange.bind(this)
+        this.handleSubmit = this.handleSubmit.bind(this)
+    }
+
+    handleChange(e) {
+        this.setState({
+            message: e
+        })
+    }
+
+    handleSubmit(e) {
+        //e.preventDefault()
+        this.props.sendMessage(this.state.message)
+        //this.props.sendMessage(this.state.message)
+        this.setState({
+            message: ''
+        })
+
+    }
+
+    render() {
+        return (
+            <div
+                //onSubmit={this.handleSubmit}
+                className="send-message-form">
+                <InputEmoji
+                    disabled={this.props.disabled}
+                    onChange={this.handleChange}
+                    value={this.state.message}
+                    cleanOnEnter
+                    onEnter={this.handleSubmit}
+                    placeholder="Écris ton message et cliques sur Entrer"
+                    height="35"
+                />
+
+            </div>
+        )
+    }
+}
+
+export default SendMessageForm
\ No newline at end of file
diff --git a/jaas-client/src/index.css b/jaas-client/src/index.css
new file mode 100644
index 0000000..062ee6f
--- /dev/null
+++ b/jaas-client/src/index.css
@@ -0,0 +1,211 @@
+:root {
+  --main-color: #1F1F1F;
+  --secondary-color: white;
+  --third-color: #2F2F2F;
+  --main-text-color: #3e5869;
+  --secondary-text-color: #b0c7d6;
+  --send-message-form: #F5F5F5;
+}
+
+html, body {
+  height: 100%;
+  margin: 0;
+  padding: 0;
+  font-family: 'Open Sans', sans-serif;
+  font-weight: 200;
+  color: #3e5869; 
+}
+
+#root {
+  height: 100%;
+}
+
+.app {
+  display: grid;
+  height: 100%;
+  grid-template-columns: repeat(6, 1fr);
+  grid-template-rows: 40px 1fr 1fr 1fr 1fr 1fr 60px;
+  grid-template-areas: 
+      "h h h h h h"
+      "r m m m m m"
+      "r m m m m m"
+      "r m m m m m"
+      "r m m m m m"
+      "r m m m m m"
+      "n s s s s s";
+}
+
+.login {
+  background-color: var(--main-color);
+}
+
+.header-section {
+  grid-area: h;
+}
+
+.new-room-form {
+  grid-area: n;
+}
+
+.rooms-list {
+  grid-area: r;
+}
+
+.message-list {
+  grid-area: m;
+}
+
+.send-message-form {
+  grid-area: s;
+}
+
+/* REST OF CSS */
+
+.header-section {
+  background-color: var(--main-color);
+
+}
+
+.simple-menu {
+  color: var(--send-message-form);
+}
+
+.rooms-list {
+  box-sizing: border-box;
+  padding: 10px;
+  background-color: var(--main-color);
+  overflow: scroll;
+  height: 100%;
+}
+
+.rooms-list ul {
+  list-style-type: none;    
+  padding: 0;
+  overflow: scoll;
+}
+
+.rooms-list li {
+  margin: 10px 0;
+}
+
+.rooms-list h3 {
+  margin: 5px 0;
+  color: var(--secondary-color);
+}
+
+.rooms-list .room a {
+  color: var(--secondary-text-color);
+  font-weight: 600;
+  text-decoration: none;
+  
+}
+
+.rooms-list .room.active a {
+  color: var(--secondary-color);
+}
+
+.new-room-form {
+  padding: 0 5px;
+  background: var(--secondary-color);
+  color: var(--main-text-color);
+}
+
+.new-room-form form {
+  height: 100%;
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+}
+
+.new-room-form input {
+  width: 135px;
+  background: var(--secondary-color);
+}
+
+.new-room-form button {
+  background: var(--secondary-color);
+  color: var(--main-text-color);
+  border: 0;
+} 
+
+.new-room-form input::placeholder {
+  color: var(--main-text-color);
+  font-weight: 200;
+}
+
+.new-room-form input:focus {
+  outline-width: 0;
+}
+
+.new-room-form input {
+  border: 0;
+}
+
+.new-room-form button {
+  border: 0;
+}
+
+.message {
+  margin: 15px 0;
+}
+
+.message .message-username {
+  font-size: 11px;
+  font-weight: bold;
+  color: var(--secondary-color);
+  opacity: 0.9;
+  margin-bottom: 6px;
+}
+.message .message-text {
+  background: var(--third-color);
+  color: var(--secondary-color);
+  display: inline;
+  padding: 4px 8px;
+  border-radius: 8px;
+}
+
+.message-list {
+  box-sizing: border-box;
+  padding-left: 6px;
+  width: 100%;
+  height: 100%;
+  overflow: scroll;
+  background: var(--third-color);
+}
+
+.message-list .join-room {
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  height: 100%;
+  font-size: 34px;
+  font-weight: 300;
+}
+
+.send-message-form {
+  background: var(--send-message-form);
+  display: flex;
+}
+
+.send-message-form input {
+  width: 100%;
+  padding: 15px 10px;
+  margin: 0;
+  border-style: none;
+  background: var(--send-message-form);
+  font-weight: 200;
+
+}
+
+.send-message-form input:focus {
+  outline-width: 0;
+}
+
+.send-message-form input::placeholder {
+  color: var(--main-text-color);
+}
+
+.help-text {
+  position: absolute;
+  top: 10px;
+}
diff --git a/jaas-client/src/index.js b/jaas-client/src/index.js
new file mode 100644
index 0000000..f5185c1
--- /dev/null
+++ b/jaas-client/src/index.js
@@ -0,0 +1,17 @@
+import React from 'react';
+import ReactDOM from 'react-dom';
+import './index.css';
+import App from './App';
+import * as serviceWorker from './serviceWorker';
+
+ReactDOM.render(
+  <React.StrictMode>
+    <App />
+  </React.StrictMode>,
+  document.getElementById('root')
+);
+
+// If you want your app to work offline and load faster, you can change
+// unregister() to register() below. Note this comes with some pitfalls.
+// Learn more about service workers: https://bit.ly/CRA-PWA
+serviceWorker.unregister();
diff --git a/jaas-client/src/logo.svg b/jaas-client/src/logo.svg
new file mode 100644
index 0000000..6b60c10
--- /dev/null
+++ b/jaas-client/src/logo.svg
@@ -0,0 +1,7 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 841.9 595.3">
+    <g fill="#61DAFB">
+        <path d="M666.3 296.5c0-32.5-40.7-63.3-103.1-82.4 14.4-63.6 8-114.2-20.2-130.4-6.5-3.8-14.1-5.6-22.4-5.6v22.3c4.6 0 8.3.9 11.4 2.6 13.6 7.8 19.5 37.5 14.9 75.7-1.1 9.4-2.9 19.3-5.1 29.4-19.6-4.8-41-8.5-63.5-10.9-13.5-18.5-27.5-35.3-41.6-50 32.6-30.3 63.2-46.9 84-46.9V78c-27.5 0-63.5 19.6-99.9 53.6-36.4-33.8-72.4-53.2-99.9-53.2v22.3c20.7 0 51.4 16.5 84 46.6-14 14.7-28 31.4-41.3 49.9-22.6 2.4-44 6.1-63.6 11-2.3-10-4-19.7-5.2-29-4.7-38.2 1.1-67.9 14.6-75.8 3-1.8 6.9-2.6 11.5-2.6V78.5c-8.4 0-16 1.8-22.6 5.6-28.1 16.2-34.4 66.7-19.9 130.1-62.2 19.2-102.7 49.9-102.7 82.3 0 32.5 40.7 63.3 103.1 82.4-14.4 63.6-8 114.2 20.2 130.4 6.5 3.8 14.1 5.6 22.5 5.6 27.5 0 63.5-19.6 99.9-53.6 36.4 33.8 72.4 53.2 99.9 53.2 8.4 0 16-1.8 22.6-5.6 28.1-16.2 34.4-66.7 19.9-130.1 62-19.1 102.5-49.9 102.5-82.3zm-130.2-66.7c-3.7 12.9-8.3 26.2-13.5 39.5-4.1-8-8.4-16-13.1-24-4.6-8-9.5-15.8-14.4-23.4 14.2 2.1 27.9 4.7 41 7.9zm-45.8 106.5c-7.8 13.5-15.8 26.3-24.1 38.2-14.9 1.3-30 2-45.2 2-15.1 0-30.2-.7-45-1.9-8.3-11.9-16.4-24.6-24.2-38-7.6-13.1-14.5-26.4-20.8-39.8 6.2-13.4 13.2-26.8 20.7-39.9 7.8-13.5 15.8-26.3 24.1-38.2 14.9-1.3 30-2 45.2-2 15.1 0 30.2.7 45 1.9 8.3 11.9 16.4 24.6 24.2 38 7.6 13.1 14.5 26.4 20.8 39.8-6.3 13.4-13.2 26.8-20.7 39.9zm32.3-13c5.4 13.4 10 26.8 13.8 39.8-13.1 3.2-26.9 5.9-41.2 8 4.9-7.7 9.8-15.6 14.4-23.7 4.6-8 8.9-16.1 13-24.1zM421.2 430c-9.3-9.6-18.6-20.3-27.8-32 9 .4 18.2.7 27.5.7 9.4 0 18.7-.2 27.8-.7-9 11.7-18.3 22.4-27.5 32zm-74.4-58.9c-14.2-2.1-27.9-4.7-41-7.9 3.7-12.9 8.3-26.2 13.5-39.5 4.1 8 8.4 16 13.1 24 4.7 8 9.5 15.8 14.4 23.4zM420.7 163c9.3 9.6 18.6 20.3 27.8 32-9-.4-18.2-.7-27.5-.7-9.4 0-18.7.2-27.8.7 9-11.7 18.3-22.4 27.5-32zm-74 58.9c-4.9 7.7-9.8 15.6-14.4 23.7-4.6 8-8.9 16-13 24-5.4-13.4-10-26.8-13.8-39.8 13.1-3.1 26.9-5.8 41.2-7.9zm-90.5 125.2c-35.4-15.1-58.3-34.9-58.3-50.6 0-15.7 22.9-35.6 58.3-50.6 8.6-3.7 18-7 27.7-10.1 5.7 19.6 13.2 40 22.5 60.9-9.2 20.8-16.6 41.1-22.2 60.6-9.9-3.1-19.3-6.5-28-10.2zM310 490c-13.6-7.8-19.5-37.5-14.9-75.7 1.1-9.4 2.9-19.3 5.1-29.4 19.6 4.8 41 8.5 63.5 10.9 13.5 18.5 27.5 35.3 41.6 50-32.6 30.3-63.2 46.9-84 46.9-4.5-.1-8.3-1-11.3-2.7zm237.2-76.2c4.7 38.2-1.1 67.9-14.6 75.8-3 1.8-6.9 2.6-11.5 2.6-20.7 0-51.4-16.5-84-46.6 14-14.7 28-31.4 41.3-49.9 22.6-2.4 44-6.1 63.6-11 2.3 10.1 4.1 19.8 5.2 29.1zm38.5-66.7c-8.6 3.7-18 7-27.7 10.1-5.7-19.6-13.2-40-22.5-60.9 9.2-20.8 16.6-41.1 22.2-60.6 9.9 3.1 19.3 6.5 28.1 10.2 35.4 15.1 58.3 34.9 58.3 50.6-.1 15.7-23 35.6-58.4 50.6zM320.8 78.4z"/>
+        <circle cx="420.9" cy="296.5" r="45.7"/>
+        <path d="M520.5 78.1z"/>
+    </g>
+</svg>
diff --git a/jaas-client/src/pages/404.jsx b/jaas-client/src/pages/404.jsx
new file mode 100644
index 0000000..8d0dcb1
--- /dev/null
+++ b/jaas-client/src/pages/404.jsx
@@ -0,0 +1,12 @@
+import React from 'react';
+
+
+const NotFoundPage = () => {
+    return (
+        <div>
+            <h3>404 Page not found</h3>
+        </div>
+    )
+}
+
+export default NotFoundPage;
\ No newline at end of file
diff --git a/jaas-client/src/pages/index.jsx b/jaas-client/src/pages/index.jsx
new file mode 100644
index 0000000..ad831b1
--- /dev/null
+++ b/jaas-client/src/pages/index.jsx
@@ -0,0 +1,223 @@
+import React from 'react';
+import Avatar from '@material-ui/core/Avatar';
+import Button from '@material-ui/core/Button';
+import CssBaseline from '@material-ui/core/CssBaseline';
+import TextField from '@material-ui/core/TextField';
+import FormControlLabel from '@material-ui/core/FormControlLabel';
+import Checkbox from '@material-ui/core/Checkbox';
+import Link from '@material-ui/core/Link';
+import Grid from '@material-ui/core/Grid';
+import Box from '@material-ui/core/Box';
+import LockOutlinedIcon from '@material-ui/icons/LockOutlined';
+import Typography from '@material-ui/core/Typography';
+//import { makeStyles } from '@material-ui/core/styles';
+import Container from '@material-ui/core/Container';
+import { Redirect } from 'react-router-dom';
+import CircularProgress from '@material-ui/core/CircularProgress';
+import DialogTitle from '@material-ui/core/DialogTitle';
+import Dialog from '@material-ui/core/Dialog';
+
+
+function Copyright() {
+    return (
+        <Typography variant="body2" color="textSecondary" align="center">
+            {'Copyright © 2016-'}{new Date().getFullYear()}{' Savoir-faire Linux Inc. GNU '}
+            <Link color="inherit" href="https://jami.net/">
+                Jami.net
+        </Link>{' '}
+
+            {'.'}
+        </Typography>
+    );
+}
+
+/*const useStyles = makeStyles((theme) => ({
+    paper: {
+        marginTop: theme.spacing(8),
+        display: 'flex',
+        flexDirection: 'column',
+        alignItems: 'center',
+    },
+    avatar: {
+        margin: theme.spacing(1),
+        backgroundColor: theme.palette.secondary.main,
+    },
+    form: {
+        width: '100%', // Fix IE 11 issue.
+        marginTop: theme.spacing(1),
+    },
+    submit: {
+        margin: theme.spacing(3, 0, 2),
+    },
+}));*/
+
+/*function SignIn() {
+    const classes = useStyles();
+
+
+}*/
+
+/* 
+    TODO:
+    Use useState to handle username password and redirect states to render this page to 
+    comply with material-ui usage of useStyles
+    Src: https://blog.logrocket.com/a-guide-to-usestate-in-react-ecb9952e406c/
+*/
+
+class SignInPage extends React.Component {
+
+    constructor() {
+        super()
+        this.state = {
+            username: '',
+            password: '',
+            redirect: false,
+            session: null,
+            submitted: false,
+            loading: false,
+            error: false,
+            open: false,
+            errorMessage: ''
+        }
+        this.handleSubmit = this.handleSubmit.bind(this);
+    }
+
+    handleusername(text) {
+        this.setState({ username: text.target.value })
+    }
+
+    handlePassword(text) {
+        this.setState({ password: text.target.value })
+    }
+
+    handleSubmit(event) {
+        event.preventDefault();
+        let obj = {}
+        obj.username = this.state.username;
+        obj.password = this.state.password;
+
+        this.setState({
+            submitted: true,
+            loading: true
+        })
+
+        fetch('/api/login?username=' + obj.username + '&password=' + obj.password,
+            {
+                header: {
+                    "Content-Type": "application/json"
+                },
+                method: "POST",
+                credentials: 'same-origin'
+                //body: JSON.stringify({ obj })
+            }
+        ).then((res) => {
+            if (res.status == '200') {
+                this.setState({
+                    redirect: true
+                });
+            } else if (res.status == '401') {
+                this.setState({
+                    loading: false,
+                    error: true,
+                    open: true,
+                    errorMessage: "Wrong credentials! Your are not allowed to connect"
+                })
+            }
+            //this.setState({ session: res });
+        }).catch((e) => {
+            this.setState({
+                loading: false,
+                error: true,
+                open: true,
+                errorMessage: e.toString()
+            })
+        })
+    }
+
+
+    render() {
+        if (this.state.redirect) {
+            return <Redirect to="/jaas" />
+        }
+
+        return (
+            <Container component="main" maxWidth="xs" >
+                <CssBaseline />
+                <div className=""/*{classes.paper}*/>
+                    <Typography component="h1" variant="h5">
+                        Se connecter
+              </Typography>
+                    <form className=""/*{classes.form}*/ onSubmit={this.handleSubmit} >
+                        <TextField
+                            variant="outlined"
+                            margin="normal"
+                            required
+                            fullWidth
+                            id="username"
+                            label="LDAP Savoir-faire Linux"
+                            name="username"
+                            autoComplete="email"
+                            autoFocus
+                            onChange={(text) => { this.handleusername(text) }}
+                        />
+                        <TextField
+                            variant="outlined"
+                            margin="normal"
+                            required
+                            fullWidth
+                            name="password"
+                            label="Mot de passe"
+                            type="password"
+                            id="password"
+                            autoComplete="current-password"
+                            onChange={(text) => { this.handlePassword(text) }}
+                        />
+                        <FormControlLabel
+                            control={<Checkbox value="remember" color="primary" />}
+                            label="Se rapeller de moi"
+                        />
+                        <Button
+                            type="submit"
+                            fullWidth
+                            variant="contained"
+                            color="primary"
+                            className=""/*{classes.submit}*/
+                        // onClick={() => { this.login() }}
+                        >
+                            Se connecter
+                        </Button>
+                        <Grid container>
+                            <Grid item xs>
+                                <Link href="#" variant="body2">
+                                    Mot de passe oublié ?
+                                </Link>
+                            </Grid>
+                            <Grid item>
+                                <Link href="#" variant="body2">
+                                    {"Tu n'as pas de compte? Inscris-toi"}
+                                </Link>
+                            </Grid>
+                        </Grid>
+                    </form>
+                </div>
+                <Box mt={8}>
+                    <Copyright />
+                </Box>
+                {this.state.submitted && this.state.loading && <CircularProgress
+                    style={{ position: 'relative' }}
+                    size={40}
+                    top={10}
+                    style={{ marginLeft: '50%' }}
+                />}
+                {
+                    this.state.error && <Dialog aria-labelledby="simple-dialog-title" open={this.state.open} >
+                        <DialogTitle id="simple-dialog-title">{this.state.errorMessage}</DialogTitle>
+                    </Dialog>
+                }
+            </Container>
+        );
+    }
+}
+
+
+export default SignInPage;
\ No newline at end of file
diff --git a/jaas-client/src/pages/jaas.jsx b/jaas-client/src/pages/jaas.jsx
new file mode 100644
index 0000000..5c8a4aa
--- /dev/null
+++ b/jaas-client/src/pages/jaas.jsx
@@ -0,0 +1,82 @@
+import React from 'react';
+import Header from '../components/Header'
+import ContactList from '../components/ContactList'
+import MessageList from '../components/MessageList'
+import SendMessageForm from '../components/SendMessageForm'
+import NewContactForm from '../components/NewContactForm'
+import Sound from 'react-sound';
+import io from "socket.io-client";
+var socket = io.connect('http://localhost:3000');
+
+class Jaas extends React.Component {
+
+  constructor() {
+    super()
+    this.state = {
+      messages: [],
+      sound: false
+    }
+
+    socket.on('connect', () => {
+      console.log("Success !")
+    })
+
+    //import io from 'socket.io-client';
+
+    //this.socket = socketIOClient(ENDPOINT);
+    //this.socket.on("FromAPI", data => {
+    //  this.setState({
+    //    messages: [...this.state.messages, data]
+    //  })
+    //});
+    this.sendMessage = this.sendMessage.bind(this)
+  }
+
+  componentDidMount() {
+    socket.on('receivedMessage', (data) => {
+      var message = {
+        senderId: '65f6674b26e5af6ed0b4e92a13b80ff4bbfdf1e8',
+        text: data
+      }
+      this.setState({
+        messages: [...this.state.messages, message],
+        sound: true
+      })
+    });
+  }
+
+  sendMessage(text) {
+    var data = {
+      senderId: 'Me',
+      destinationId: '65f6674b26e5af6ed0b4e92a13b80ff4bbfdf1e8',
+      text: text
+    }
+    socket.emit("SendMessage", data);
+    console.log(data.text);
+    this.setState({
+      messages: [...this.state.messages, data],
+      sound: false
+    })
+  }
+  render() {
+    return (
+      <div className="app" >
+        <Header />
+        <ContactList />
+        <MessageList messages={this.state.messages} />
+        <SendMessageForm sendMessage={this.sendMessage} />
+        <NewContactForm />
+        {this.state.sound && <Sound
+          url="stairs.mp3" /*https://notificationsounds.com/message-tones/stairs-567*/
+          playStatus={Sound.status.PLAYING}
+          playFromPosition={0 /* in milliseconds */}
+          onLoading={this.handleSongLoading}
+          onPlaying={this.handleSongPlaying}
+          onFinishedPlaying={this.handleSongFinishedPlaying}
+        />}
+      </div>
+    )
+  }
+}
+
+export default Jaas;
\ No newline at end of file
diff --git a/jaas-client/src/serviceWorker.js b/jaas-client/src/serviceWorker.js
new file mode 100644
index 0000000..b04b771
--- /dev/null
+++ b/jaas-client/src/serviceWorker.js
@@ -0,0 +1,141 @@
+// This optional code is used to register a service worker.
+// register() is not called by default.
+
+// This lets the app load faster on subsequent visits in production, and gives
+// it offline capabilities. However, it also means that developers (and users)
+// will only see deployed updates on subsequent visits to a page, after all the
+// existing tabs open on the page have been closed, since previously cached
+// resources are updated in the background.
+
+// To learn more about the benefits of this model and instructions on how to
+// opt-in, read https://bit.ly/CRA-PWA
+
+const isLocalhost = Boolean(
+  window.location.hostname === 'localhost' ||
+    // [::1] is the IPv6 localhost address.
+    window.location.hostname === '[::1]' ||
+    // 127.0.0.0/8 are considered localhost for IPv4.
+    window.location.hostname.match(
+      /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/
+    )
+);
+
+export function register(config) {
+  if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {
+    // The URL constructor is available in all browsers that support SW.
+    const publicUrl = new URL(process.env.PUBLIC_URL, window.location.href);
+    if (publicUrl.origin !== window.location.origin) {
+      // Our service worker won't work if PUBLIC_URL is on a different origin
+      // from what our page is served on. This might happen if a CDN is used to
+      // serve assets; see https://github.com/facebook/create-react-app/issues/2374
+      return;
+    }
+
+    window.addEventListener('load', () => {
+      const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;
+
+      if (isLocalhost) {
+        // This is running on localhost. Let's check if a service worker still exists or not.
+        checkValidServiceWorker(swUrl, config);
+
+        // Add some additional logging to localhost, pointing developers to the
+        // service worker/PWA documentation.
+        navigator.serviceWorker.ready.then(() => {
+          console.log(
+            'This web app is being served cache-first by a service ' +
+              'worker. To learn more, visit https://bit.ly/CRA-PWA'
+          );
+        });
+      } else {
+        // Is not localhost. Just register service worker
+        registerValidSW(swUrl, config);
+      }
+    });
+  }
+}
+
+function registerValidSW(swUrl, config) {
+  navigator.serviceWorker
+    .register(swUrl)
+    .then(registration => {
+      registration.onupdatefound = () => {
+        const installingWorker = registration.installing;
+        if (installingWorker == null) {
+          return;
+        }
+        installingWorker.onstatechange = () => {
+          if (installingWorker.state === 'installed') {
+            if (navigator.serviceWorker.controller) {
+              // At this point, the updated precached content has been fetched,
+              // but the previous service worker will still serve the older
+              // content until all client tabs are closed.
+              console.log(
+                'New content is available and will be used when all ' +
+                  'tabs for this page are closed. See https://bit.ly/CRA-PWA.'
+              );
+
+              // Execute callback
+              if (config && config.onUpdate) {
+                config.onUpdate(registration);
+              }
+            } else {
+              // At this point, everything has been precached.
+              // It's the perfect time to display a
+              // "Content is cached for offline use." message.
+              console.log('Content is cached for offline use.');
+
+              // Execute callback
+              if (config && config.onSuccess) {
+                config.onSuccess(registration);
+              }
+            }
+          }
+        };
+      };
+    })
+    .catch(error => {
+      console.error('Error during service worker registration:', error);
+    });
+}
+
+function checkValidServiceWorker(swUrl, config) {
+  // Check if the service worker can be found. If it can't reload the page.
+  fetch(swUrl, {
+    headers: { 'Service-Worker': 'script' },
+  })
+    .then(response => {
+      // Ensure service worker exists, and that we really are getting a JS file.
+      const contentType = response.headers.get('content-type');
+      if (
+        response.status === 404 ||
+        (contentType != null && contentType.indexOf('javascript') === -1)
+      ) {
+        // No service worker found. Probably a different app. Reload the page.
+        navigator.serviceWorker.ready.then(registration => {
+          registration.unregister().then(() => {
+            window.location.reload();
+          });
+        });
+      } else {
+        // Service worker found. Proceed as normal.
+        registerValidSW(swUrl, config);
+      }
+    })
+    .catch(() => {
+      console.log(
+        'No internet connection found. App is running in offline mode.'
+      );
+    });
+}
+
+export function unregister() {
+  if ('serviceWorker' in navigator) {
+    navigator.serviceWorker.ready
+      .then(registration => {
+        registration.unregister();
+      })
+      .catch(error => {
+        console.error(error.message);
+      });
+  }
+}
diff --git a/jaas-client/src/setupTests.js b/jaas-client/src/setupTests.js
new file mode 100644
index 0000000..74b1a27
--- /dev/null
+++ b/jaas-client/src/setupTests.js
@@ -0,0 +1,5 @@
+// jest-dom adds custom jest matchers for asserting on DOM nodes.
+// allows you to do things like:
+// expect(element).toHaveTextContent(/react/i)
+// learn more: https://github.com/testing-library/jest-dom
+import '@testing-library/jest-dom/extend-expect';