diff --git a/src/App.tsx b/src/App.tsx
index 659be7e..c083e13 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -21,44 +21,63 @@ import ClipViewLocal from './clip/ClipViewLocal';
 import ClipViewRemote from './clip/ClipViewRemote';
 import { createMaterialBottomTabNavigator } from '@react-navigation/material-bottom-tabs';
 import { createNativeStackNavigator } from '@react-navigation/native-stack';
-import SignUp from './auth/SignUp';
 import SignIn from './auth/SignIn';
+import SignUp from './auth/SignUp';
+import { Provider } from 'react-redux';
+import store from './redux/store';
 
 const Stack = createNativeStackNavigator();
 const Tab = createMaterialBottomTabNavigator();
 
-function Clip() {
-    return (
-        <Tab.Navigator>
-            <Tab.Screen name="Local" options={{ title: 'local' }}>
-                {(props) => <ClipViewLocal navigation={props.navigation} type={"local"} />}
-            </Tab.Screen>
-            <Tab.Screen name="Remote" options={{ title: 'remote' }}>
-                {(props) => <ClipViewRemote navigation={props.navigation} type={"remote"} />}
-            </Tab.Screen>
-        </Tab.Navigator>
-    );
-}
+class App extends React.Component<any, any> {
 
-function Auth() {
-    return <Tab.Navigator>
-        <Tab.Screen component={SignIn} name="Login" options={{ title: 'Sign In' }} />
-        <Tab.Screen component={SignUp} name="Register" options={{ title: 'Sign Up' }} />
-    </Tab.Navigator>;
-}
+    constructor(props: any) {
+        super(props);
+        this.state = {
+            token: "",
+            username: ""
+        }
+        store.subscribe(() => {
+            console.log("see a dispatch");
+            this.setState({ token: store.getState().userReducer.token})
+        });
+    }
 
-function App(): JSX.Element {
-    return (
-        <NavigationContainer>
-            <Stack.Navigator>
-                {/*-------------------------------------------*/}
-                <Stack.Screen component={Auth} name="Authentification" options={{title: "Authentification"}} />
-                {/*-------------------------------------------*/}
-                <Stack.Screen component={Clip} name="Clipboards" options={{title: 'Clipboard'}}/>
-                {/*-------------------------------------------*/}
-            </Stack.Navigator>
+    Auth() {
+        return <Provider store={store}>
+            <Tab.Navigator>
+                <Tab.Screen children={() => <SignIn store={store} />} name="Login" options={{ title: 'Connexion' }} />
+                <Tab.Screen children={() => <SignUp store={store} />} name="Register" options={{ title: 'Créer un compte' }} />
+            </Tab.Navigator>
+        </Provider>;
+    }
+
+    Clip() {
+        return (
+            <Tab.Navigator>
+                <Tab.Screen name="Local" options={{ title: 'local' }}>
+                    {(props) => <ClipViewLocal store={store} navigation={props.navigation} type={"local"} />}
+                </Tab.Screen>
+                <Tab.Screen name="Remote" options={{ title: 'distant' }}>
+                    {(props) => <ClipViewRemote store={store} navigation={props.navigation} type={"remote"} />}
+                </Tab.Screen>
+            </Tab.Navigator>
+        );
+    }
+
+    render(): React.ReactNode {
+        console.log("render app", store.getState());
+        console.log("app state", this.state);
+        return <NavigationContainer>
+            <Stack.Navigator>{
+                this.state.token === ""
+                    ?
+                    <Stack.Screen component={this.Auth} name="Authentication" options={{ title: "Authentification" }} />
+                    :
+                    <Stack.Screen component={this.Clip} name="Clipboards" options={{ title: 'Presse papiers' }} />
+            }</Stack.Navigator>
         </NavigationContainer>
-    );
+    };
 }
 
 const styles = StyleSheet.create({
diff --git a/src/auth/SignIn.tsx b/src/auth/SignIn.tsx
index af1310e..eea6d42 100644
--- a/src/auth/SignIn.tsx
+++ b/src/auth/SignIn.tsx
@@ -1,6 +1,6 @@
 import React from 'react';
 import { View, Text, Button, TextInput } from 'react-native';
-
+import { setUser } from '../redux/actions';
 
 export default class SignIn extends React.Component<any, any> {
 
@@ -16,6 +16,15 @@ export default class SignIn extends React.Component<any, any> {
     }
 
     async signInFunction() {
+        const signInResponse = await fetch(
+            'https://notifysync.simailadjalim.fr/user?username=' + this.state.username + '&password=' + this.state.password,
+            { method: 'POST' }
+        );
+        const signInJson = await signInResponse.json();
+        if (signInJson.status === "ok") {
+            console.log(this.props.store);
+            this.props.store.dispatch(setUser(signInJson.token, this.state.username));
+        } else console.log(signInJson);
     }
 
     updateUsername(event: any) {
@@ -29,10 +38,10 @@ export default class SignIn extends React.Component<any, any> {
     render(): React.ReactNode {
         return (
             <View>
-                <Text>Sign In</Text>
-                <TextInput placeholder="Pseudo" value={this.state.username} onChange={this.updateUsername}/>
+                <Text>Connexion</Text>
+                <TextInput placeholder="Nom d'utilisateur" value={this.state.username} onChange={this.updateUsername}/>
                 <TextInput placeholder="Mot de Passe" value={this.state.password} onChange={this.updatePassword}/>
-                <Button title="Sign In" onPress={this.signInFunction} />
+                <Button title="Se connecter" onPress={this.signInFunction} />
             </View>
         );
     }
diff --git a/src/auth/SignUp.tsx b/src/auth/SignUp.tsx
index 089be28..83ec4a3 100644
--- a/src/auth/SignUp.tsx
+++ b/src/auth/SignUp.tsx
@@ -1,6 +1,7 @@
 import React from 'react';
 import { View, Text, Button, TextInput } from 'react-native';
-
+import { accessibilityProps } from 'react-native-paper/lib/typescript/src/components/MaterialCommunityIcon';
+import { setUser } from '../redux/actions';
 
 
 export default class SignUp extends React.Component<any, any> {
@@ -11,56 +12,45 @@ export default class SignUp extends React.Component<any, any> {
             username: '',
             password: ''
         }
+        this.signUpFunction = this.signUpFunction.bind(this);
         this.updateUsername = this.updateUsername.bind(this);
         this.updatePassword = this.updatePassword.bind(this);
-        this.signUpFunction = this.signUpFunction.bind(this);
     }
 
     async signUpFunction() {
-        const signInResponse = await fetch('https://notifysync.simailadjalim.fr/user', {
-            method: 'PUT',
-            headers: {
-                Accept: 'application/json',
-                'Content-Type': 'application/json',
-            },
-            body: JSON.stringify({
-                username: this.state.username,
-                password: this.state.password
-            }),
-        });
-        const signInJson = await signInResponse.json();
-        if (signInJson.status == "ok"){
-            const loginResponse = await fetch('https://notifysync.simailadjalim.fr/user', {
-                method: 'POST',
-                headers: {
-                    Accept: 'application/json',
-                    'Content-Type': 'application/json',
-                },
-                body: JSON.stringify({
-                    username: this.state.username,
-                    password: this.state.password
-                }),
-            });
-            const loginJson = await loginResponse.json(); 
-
-        }
+        const signUpResponse = await fetch(
+            'https://notifysync.simailadjalim.fr/user?username=' + this.state.username + '&password=' + this.state.password,
+            { method: 'PUT' }
+        );
+        const signUpJson = await signUpResponse.json();
+        if (signUpJson.status === "ok") {
+            const signInResponse = await fetch(
+                'https://notifysync.simailadjalim.fr/user?username=' + this.state.username + '&password=' + this.state.password,
+                { method: 'POST' }
+            );
+            const signInJson = await signInResponse.json();
+            if (signInJson.status === "ok") {
+                console.log(this.props.store);
+                this.props.store.dispatch(setUser(signInJson.token, this.state.username));
+            } else console.log(signInJson);
+        } else console.log(signUpJson);
     }
 
-    updateUsername(event: any) {
-        this.setState({ username: event.target.value });
+    updateUsername(username: string) {
+        this.setState({ username: username });
     }
 
-    updatePassword(event: any) {
-        this.setState({ password: event.target.value });
+    updatePassword(password: any) {
+        this.setState({ password: password });
     }
 
     render(): React.ReactNode {
         return (
             <View>
-                <Text>Sign Up</Text>
-                <TextInput placeholder="Pseudo" value={this.state.username} onChange={this.updateUsername} />
-                <TextInput placeholder="Mot de Passe" value={this.state.password} onChange={this.updatePassword} />
-                <Button title="Sign Up" onPress={this.signUpFunction} />
+                <Text>Créer un compte</Text>
+                <TextInput placeholder="Nom d'utilisateur" value={this.state.username} onChangeText={this.updateUsername} />
+                <TextInput placeholder="Mot de Passe" value={this.state.password} onChangeText={this.updatePassword} />
+                <Button title="S'enregistrer" onPress={this.signUpFunction} />
             </View>
         );
     }
diff --git a/src/clip/AClipView.tsx b/src/clip/AClipView.tsx
index 38e0f59..603aabb 100644
--- a/src/clip/AClipView.tsx
+++ b/src/clip/AClipView.tsx
@@ -1,7 +1,6 @@
 import React from 'react';
-import { ScrollView, Text, Button } from 'react-native';
-import ClipList from './ClipList';
-
+import { Button } from 'react-native';
+import { clearUser } from '../redux/actions';
 
 export default abstract class AClipView extends React.Component<any, any> {
 
@@ -12,6 +11,13 @@ export default abstract class AClipView extends React.Component<any, any> {
         }
     }
 
+    getSignOutBtn() {
+        return <Button title="Sign out" onPress={() => {
+            console.log("logout");
+            this.props.store.dispatch(clearUser());
+        }} />
+    }
+
     abstract getClips(): any;
 
     abstract componentDidMount(): any;
diff --git a/src/clip/ClipViewLocal.tsx b/src/clip/ClipViewLocal.tsx
index 734e5c6..141dd37 100644
--- a/src/clip/ClipViewLocal.tsx
+++ b/src/clip/ClipViewLocal.tsx
@@ -27,6 +27,7 @@ export default class ClipViewLocal extends AClipView {
         return <ScrollView>
             <Text style={{ fontWeight: 'bold', fontSize: 30, margin: 20 }}>{title}</Text>
             <ClipList type={this.props.type} clips={this.state.clips} />
+            {this.getSignOutBtn()}
         </ScrollView>;
     }
 }
\ No newline at end of file
diff --git a/src/clip/ClipViewRemote.tsx b/src/clip/ClipViewRemote.tsx
index cd44dbc..d69ddf0 100644
--- a/src/clip/ClipViewRemote.tsx
+++ b/src/clip/ClipViewRemote.tsx
@@ -27,6 +27,7 @@ export default class ClipViewRemote extends AClipView {
             <Text style={{ fontWeight: 'bold', fontSize: 30, margin: 20 }}>{title}</Text>
             <ClipList type={this.props.type} clips={this.state.clips} />
             <Button title="Refresh" onPress={() => this.componentDidMount()} />
+            {this.getSignOutBtn()}
         </ScrollView>;
     }
 }
\ No newline at end of file
diff --git a/src/redux/actions.tsx b/src/redux/actions.tsx
new file mode 100644
index 0000000..e06906b
--- /dev/null
+++ b/src/redux/actions.tsx
@@ -0,0 +1,12 @@
+export function setUser(token: string, username: string) {
+    return {
+        type: "auth/connect",
+        payload: { token, username }
+    };
+}
+
+export function clearUser() {
+    return {
+        type: "auth/disconnect"
+    };
+}
\ No newline at end of file
diff --git a/src/redux/reducers.tsx b/src/redux/reducers.tsx
new file mode 100644
index 0000000..e5d97ff
--- /dev/null
+++ b/src/redux/reducers.tsx
@@ -0,0 +1,12 @@
+const initialState = { token: "" }
+
+export function userReducer(state = initialState, action: any) {
+    switch (action.type) {
+        case "auth/connect":
+            return { ...state, token: action.payload.token, username: action.payload.username };
+        case "auth/disconnect":
+            return { ...state, token: "" };
+        default:
+            return state;
+    }
+}
\ No newline at end of file
diff --git a/src/redux/store.tsx b/src/redux/store.tsx
new file mode 100644
index 0000000..083d71e
--- /dev/null
+++ b/src/redux/store.tsx
@@ -0,0 +1,8 @@
+import { createStore, combineReducers } from "redux";
+import { userReducer } from "./reducers";
+
+export default createStore(
+    combineReducers({
+        userReducer
+    })
+);