diff --git a/src/app/build.gradle b/src/app/build.gradle
index 36bf23c..8694db6 100644
--- a/src/app/build.gradle
+++ b/src/app/build.gradle
@@ -5,7 +5,18 @@ plugins {
     id "dagger.hilt.android.plugin"
 }
 
+def keystorePropertiesFile = rootProject.file("app/keys/keystore.properties")
+def keystoreProperties = new Properties()
+keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
+
 android {
+    signingConfigs {
+        release {
+            storeFile file(keystoreProperties['store'])
+            storePassword keystoreProperties['password']
+            keyPassword keystoreProperties['password']
+        }
+    }
     namespace 'fr.iut.alldev.allin'
     compileSdk 34
 
@@ -24,8 +35,15 @@ android {
 
     buildTypes {
         release {
+            minifyEnabled true
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            signingConfig signingConfigs.debug
+        }
+
+        debug {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            signingConfig signingConfigs.debug
         }
     }
     compileOptions {
diff --git a/src/app/debug/app-debug.aab b/src/app/debug/app-debug.aab
new file mode 100644
index 0000000..d2b5176
Binary files /dev/null and b/src/app/debug/app-debug.aab differ
diff --git a/src/app/keys/keystore.jks b/src/app/keys/keystore.jks
new file mode 100644
index 0000000..bb4e75c
Binary files /dev/null and b/src/app/keys/keystore.jks differ
diff --git a/src/app/keys/keystore.properties b/src/app/keys/keystore.properties
new file mode 100644
index 0000000..fe9ab09
--- /dev/null
+++ b/src/app/keys/keystore.properties
@@ -0,0 +1,2 @@
+store=keys/keystore.jks
+password=placeYourBets
\ No newline at end of file
diff --git a/src/app/keys/private_key.pepk b/src/app/keys/private_key.pepk
new file mode 100644
index 0000000..be8173b
Binary files /dev/null and b/src/app/keys/private_key.pepk differ
diff --git a/src/app/release/app-release.aab b/src/app/release/app-release.aab
new file mode 100644
index 0000000..621d252
Binary files /dev/null and b/src/app/release/app-release.aab differ
diff --git a/src/app/src/debug/res/values/strings.xml b/src/app/src/debug/res/values/strings.xml
new file mode 100644
index 0000000..851c1c6
--- /dev/null
+++ b/src/app/src/debug/res/values/strings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name" translatable="false">Allin_DEBUG</string>
+</resources>
\ No newline at end of file
diff --git a/src/app/src/main/AndroidManifest.xml b/src/app/src/main/AndroidManifest.xml
index b5080f8..7a815cd 100644
--- a/src/app/src/main/AndroidManifest.xml
+++ b/src/app/src/main/AndroidManifest.xml
@@ -2,6 +2,8 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
 
+    <uses-permission android:name="android.permission.INTERNET"/>
+
     <application
         android:name=".AllInApplication"
         android:allowBackup="true"
diff --git a/src/app/src/main/java/fr/iut/alldev/allin/ui/MainActivity.kt b/src/app/src/main/java/fr/iut/alldev/allin/ui/MainActivity.kt
index ef2e42a..382e220 100644
--- a/src/app/src/main/java/fr/iut/alldev/allin/ui/MainActivity.kt
+++ b/src/app/src/main/java/fr/iut/alldev/allin/ui/MainActivity.kt
@@ -37,7 +37,6 @@ class MainActivity : ComponentActivity() {
                         }
                     }
                 }
-
                 AllInNavHost()
             }
         }
diff --git a/src/app/src/main/java/fr/iut/alldev/allin/ui/core/AllInAlertDialog.kt b/src/app/src/main/java/fr/iut/alldev/allin/ui/core/AllInAlertDialog.kt
new file mode 100644
index 0000000..38953d3
--- /dev/null
+++ b/src/app/src/main/java/fr/iut/alldev/allin/ui/core/AllInAlertDialog.kt
@@ -0,0 +1,71 @@
+package fr.iut.alldev.allin.ui.core
+
+import android.content.res.Configuration
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.sp
+import fr.iut.alldev.allin.R
+import fr.iut.alldev.allin.ui.theme.AllInTheme
+
+@Composable
+fun AllInAlertDialog(
+    enabled: Boolean = true,
+    title: String,
+    text: String,
+    confirmText: String = stringResource(id = R.string.Ok),
+    onDismiss: ()->Unit,
+    onConfirm: ()->Unit = onDismiss
+) {
+    if(enabled) {
+        AlertDialog(
+            title = {
+                Text(
+                    text = title,
+                    fontSize = 20.sp,
+                    style = AllInTheme.typography.h1
+                )
+            },
+            text = {
+                Text(
+                    text = text,
+                    style = AllInTheme.typography.r
+                )
+            },
+            confirmButton = {
+                TextButton(
+                    onClick = onConfirm
+                ) {
+                    Text(
+                        text = confirmText,
+                        fontSize = 15.sp,
+                        style = AllInTheme.typography.h1.copy(
+                            brush = AllInTheme.colors.allIn_MainGradient
+                        )
+                    )
+                }
+
+            },
+            onDismissRequest = onDismiss,
+            containerColor = AllInTheme.themeColors.main_surface,
+            titleContentColor = AllInTheme.themeColors.on_main_surface,
+            textContentColor = AllInTheme.themeColors.on_background_2,
+        )
+    }
+}
+
+@Preview
+@Preview(uiMode = Configuration.UI_MODE_NIGHT_YES)
+@Composable
+private fun AllInAlertDialogPreview() {
+    AllInTheme {
+        AllInAlertDialog(
+            title = "Titre",
+            text = "Lorem Ipsum",
+            onDismiss = {}
+        )
+    }
+}
\ No newline at end of file
diff --git a/src/app/src/main/java/fr/iut/alldev/allin/ui/login/LoginScreen.kt b/src/app/src/main/java/fr/iut/alldev/allin/ui/login/LoginScreen.kt
index d9af848..2e11705 100644
--- a/src/app/src/main/java/fr/iut/alldev/allin/ui/login/LoginScreen.kt
+++ b/src/app/src/main/java/fr/iut/alldev/allin/ui/login/LoginScreen.kt
@@ -1,12 +1,19 @@
 package fr.iut.alldev.allin.ui.login
 
 import androidx.compose.animation.AnimatedVisibility
-import androidx.compose.foundation.*
+import androidx.compose.foundation.ExperimentalFoundationApi
+import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.relocation.BringIntoViewRequester
+import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.text.ClickableText
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.Text
-import androidx.compose.runtime.*
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
@@ -17,13 +24,10 @@ import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.hilt.navigation.compose.hiltViewModel
 import fr.iut.alldev.allin.R
-import fr.iut.alldev.allin.ui.core.AllInGradientButton
-import fr.iut.alldev.allin.ui.core.AllInLoading
-import fr.iut.alldev.allin.ui.core.AllInPasswordField
-import fr.iut.alldev.allin.ui.core.AllInTextField
+import fr.iut.alldev.allin.ui.core.*
 import fr.iut.alldev.allin.ui.theme.AllInTheme
 
-@OptIn(ExperimentalFoundationApi::class)
+@OptIn(ExperimentalFoundationApi::class, ExperimentalMaterial3Api::class)
 @Composable
 fun LoginScreen(
     navigateToDashboard: ()->Unit,
@@ -33,6 +37,10 @@ fun LoginScreen(
 
     val bringIntoViewRequester = BringIntoViewRequester()
     val loading by remember{ loginViewModel.loading }
+    var hasLoginError by remember{ loginViewModel.hasError }
+
+    val (username, setUsername) = remember{ loginViewModel.username }
+    val (password, setPassword) = remember{ loginViewModel.password }
 
     Box(
         Modifier
@@ -68,15 +76,15 @@ fun LoginScreen(
                 AllInTextField(
                     modifier = Modifier.fillMaxWidth(),
                     placeholder = stringResource(id = R.string.username),
-                    value = "",
-                    onValueChange = { },
+                    value = username,
+                    onValueChange = setUsername,
                     bringIntoViewRequester = bringIntoViewRequester
                 )
                 AllInPasswordField(
                     modifier = Modifier.fillMaxWidth(),
                     placeholder = stringResource(id = R.string.password),
-                    value = "",
-                    onValueChange = { },
+                    value = password,
+                    onValueChange = setPassword,
                     bringIntoViewRequester = bringIntoViewRequester
                 )
             }
@@ -135,4 +143,10 @@ fun LoginScreen(
     AnimatedVisibility(visible = loading) {
         AllInLoading()
     }
+    AllInAlertDialog(
+        enabled = hasLoginError,
+        title = stringResource(id = R.string.Login_Error_Title),
+        text = stringResource(id = R.string.Login_Error_Content),
+        onDismiss = { hasLoginError = false }
+    )
 }
\ No newline at end of file
diff --git a/src/app/src/main/java/fr/iut/alldev/allin/ui/login/LoginViewModel.kt b/src/app/src/main/java/fr/iut/alldev/allin/ui/login/LoginViewModel.kt
index 2fbe80f..a92bba6 100644
--- a/src/app/src/main/java/fr/iut/alldev/allin/ui/login/LoginViewModel.kt
+++ b/src/app/src/main/java/fr/iut/alldev/allin/ui/login/LoginViewModel.kt
@@ -4,6 +4,7 @@ import androidx.compose.runtime.mutableStateOf
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
+import fr.iut.alldev.allin.data.repository.UserRepository
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
@@ -11,18 +12,30 @@ import javax.inject.Inject
 
 @HiltViewModel
 class LoginViewModel @Inject constructor(
+    private val userRepository: UserRepository
 ) : ViewModel() {
 
     var loading = mutableStateOf(false)
+    var hasError = mutableStateOf(false)
+
+    val username = mutableStateOf("")
+    val password = mutableStateOf("")
     fun onLogin(
         navigateToDashboard: ()->Unit
     ){
         viewModelScope.launch {
             loading.value = true
+
             withContext(Dispatchers.IO) {
-                Thread.sleep(3000)
+                try{
+                    userRepository.login(username.value, password.value)
+                } catch (e: retrofit2.HttpException){
+                    hasError.value = true
+                }
+            }
+            if(!hasError.value){
+                navigateToDashboard()
             }
-            navigateToDashboard()
             loading.value = false
         }
     }
diff --git a/src/app/src/main/java/fr/iut/alldev/allin/ui/register/RegisterScreen.kt b/src/app/src/main/java/fr/iut/alldev/allin/ui/register/RegisterScreen.kt
index 014fbf8..5fcdacb 100644
--- a/src/app/src/main/java/fr/iut/alldev/allin/ui/register/RegisterScreen.kt
+++ b/src/app/src/main/java/fr/iut/alldev/allin/ui/register/RegisterScreen.kt
@@ -1,5 +1,6 @@
 package fr.iut.alldev.allin.ui.register
 
+import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.foundation.*
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.relocation.BringIntoViewRequester
@@ -19,6 +20,7 @@ import androidx.compose.ui.unit.sp
 import androidx.hilt.navigation.compose.hiltViewModel
 import fr.iut.alldev.allin.R
 import fr.iut.alldev.allin.ui.core.AllInGradientButton
+import fr.iut.alldev.allin.ui.core.AllInLoading
 import fr.iut.alldev.allin.ui.core.AllInPasswordField
 import fr.iut.alldev.allin.ui.core.AllInTextField
 import fr.iut.alldev.allin.ui.theme.AllInTheme
@@ -30,6 +32,8 @@ fun RegisterScreen(
     navigateToLogin: () -> Unit,
     registerViewModel: RegisterViewModel = hiltViewModel(),
 ) {
+    val loading by remember{ registerViewModel.loading }
+
     val (username, setUsername) = remember{ registerViewModel.username }
     val (email, setEmail) = remember{ registerViewModel.email }
     val (password, setPassword) = remember{ registerViewModel.password }
@@ -118,7 +122,9 @@ fun RegisterScreen(
         ) {
             AllInGradientButton(
                 text = stringResource(id = R.string.Register),
-                onClick = navigateToDashboard
+                onClick = {
+                    registerViewModel.onRegister(navigateToDashboard)
+                }
             )
             Spacer(modifier = Modifier.height(30.dp))
             Row(
@@ -145,4 +151,7 @@ fun RegisterScreen(
             }
         }
     }
+    AnimatedVisibility(visible = loading) {
+        AllInLoading()
+    }
 }
\ No newline at end of file
diff --git a/src/app/src/main/java/fr/iut/alldev/allin/ui/register/RegisterViewModel.kt b/src/app/src/main/java/fr/iut/alldev/allin/ui/register/RegisterViewModel.kt
index 50cee46..53cd8aa 100644
--- a/src/app/src/main/java/fr/iut/alldev/allin/ui/register/RegisterViewModel.kt
+++ b/src/app/src/main/java/fr/iut/alldev/allin/ui/register/RegisterViewModel.kt
@@ -2,8 +2,12 @@ package fr.iut.alldev.allin.ui.register
 
 import androidx.compose.runtime.mutableStateOf
 import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
 import fr.iut.alldev.allin.data.repository.UserRepository
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import javax.inject.Inject
 
 @HiltViewModel
@@ -11,8 +15,28 @@ class RegisterViewModel @Inject constructor(
     val userRepository: UserRepository
 ) : ViewModel() {
 
+    var loading = mutableStateOf(false)
+
     val username = mutableStateOf("")
     val email = mutableStateOf("")
     val password = mutableStateOf("")
     val passwordValidation = mutableStateOf("")
+
+    fun onRegister(
+        navigateToDashboard: ()->Unit
+    ){
+        viewModelScope.launch {
+            loading.value = true
+
+            withContext(Dispatchers.IO) {
+                userRepository.register(
+                    username.value,
+                    email.value,
+                    password.value
+                )
+            }
+            navigateToDashboard()
+            loading.value = false
+        }
+    }
 }
\ No newline at end of file
diff --git a/src/app/src/main/res/values-fr/strings.xml b/src/app/src/main/res/values-fr/strings.xml
index 2d04fbf..3cca4a7 100644
--- a/src/app/src/main/res/values-fr/strings.xml
+++ b/src/app/src/main/res/values-fr/strings.xml
@@ -11,6 +11,7 @@
     <string name="Register">S\'inscrire</string>
     <string name="Validate">Valider</string>
     <string name="Cancel">Annuler</string>
+    <string name="Ok">OK</string>
 
     <!--Drawer-->
     <string name="bets">Bets</string>
@@ -36,6 +37,8 @@
     <!--Login Page-->
     <string name="Login_title">Te revoilà !</string>
     <string name="Login_subtitle">Bon retour parmis nous tu nous as manqué !</string>
+    <string name="Login_Error_Title">Erreur de connexion</string>
+    <string name="Login_Error_Content">La connexion a échoué\nVeuillez réessayer.</string>
     <!--Bet Creation Page-->
     <string name="Theme_tooltip">Le sujet du bet.</string>
     <string name="Phrase_tooltip">Généralement la question à laquelle les participants devront répondre.</string>
diff --git a/src/app/src/main/res/values/strings.xml b/src/app/src/main/res/values/strings.xml
index cc235c7..d339f48 100644
--- a/src/app/src/main/res/values/strings.xml
+++ b/src/app/src/main/res/values/strings.xml
@@ -14,6 +14,7 @@
     <string name="Register">Register</string>
     <string name="Validate">Validate</string>
     <string name="Cancel">Cancel</string>
+    <string name="Ok">OK</string>
 
     <!--Drawer-->
     <string name="bets">Bets</string>
@@ -40,6 +41,8 @@
     <!--Login Page-->
     <string name="Login_title">Welcome back !</string>
     <string name="Login_subtitle">We missed you.</string>
+    <string name="Login_Error_Title">Connection error</string>
+    <string name="Login_Error_Content">Failed to login\nPlease try again.</string>
     <!--Bet Creation Page-->
     <string name="Question">Question</string>
     <string name="Answer">Answer</string>
diff --git a/src/build.gradle b/src/build.gradle
index 3acbbfe..8ffeef2 100644
--- a/src/build.gradle
+++ b/src/build.gradle
@@ -4,11 +4,13 @@ buildscript {
         accompanist_version = '0.25.1'
         hilt_version = "2.45"
     }
+
 }// Top-level build file where you can add configuration options common to all sub-projects/modules.
 plugins {
     id 'com.android.application' version '7.4.2' apply false
     id 'com.android.library' version '7.4.2' apply false
     id 'org.jetbrains.kotlin.android' version '1.7.0' apply false
-    id("com.google.dagger.hilt.android") version "$hilt_version" apply false
+    id 'com.google.dagger.hilt.android' version "$hilt_version" apply false
+    id 'org.jetbrains.kotlin.plugin.serialization' version '1.7.0' apply false
+}
 
-}
\ No newline at end of file
diff --git a/src/data/build.gradle b/src/data/build.gradle
index f99eae0..853b789 100644
--- a/src/data/build.gradle
+++ b/src/data/build.gradle
@@ -2,9 +2,21 @@ plugins {
     id 'com.android.library'
     id 'org.jetbrains.kotlin.android'
     id "kotlin-kapt"
+    id "kotlinx-serialization"
 }
 
+def keystorePropertiesFile = rootProject.file("app/keys/keystore.properties")
+def keystoreProperties = new Properties()
+keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
+
 android {
+    signingConfigs {
+        release {
+            storeFile file(keystoreProperties['store'])
+            storePassword keystoreProperties['password']
+            keyPassword keystoreProperties['password']
+        }
+    }
     namespace 'fr.iut.alldev.allin.data'
     compileSdk 34
 
@@ -18,8 +30,15 @@ android {
 
     buildTypes {
         release {
+            minifyEnabled true
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            signingConfig signingConfigs.debug
+        }
+
+        debug {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            signingConfig signingConfigs.debug
         }
     }
     compileOptions {
@@ -43,4 +62,11 @@ dependencies {
     //Hilt
     implementation "com.google.dagger:hilt-android:$hilt_version"
     kapt "com.google.dagger:hilt-android-compiler:$hilt_version"
+
+    // Retrofit
+    api "com.squareup.retrofit2:retrofit:2.9.0"
+    implementation "com.squareup.okhttp3:okhttp:4.11.0"
+    implementation "com.squareup.okhttp3:logging-interceptor:4.11.0"
+    api "org.jetbrains.kotlinx:kotlinx-serialization-json:1.5.1"
+    implementation "com.jakewharton.retrofit:retrofit2-kotlinx-serialization-converter:0.8.0"
 }
\ No newline at end of file
diff --git a/src/data/src/debug/java/fr/iut/alldev/allin/data/di/DebugModule.kt b/src/data/src/debug/java/fr/iut/alldev/allin/data/di/DebugModule.kt
new file mode 100644
index 0000000..75aa252
--- /dev/null
+++ b/src/data/src/debug/java/fr/iut/alldev/allin/data/di/DebugModule.kt
@@ -0,0 +1,9 @@
+package fr.iut.alldev.allin.data.di
+
+import dagger.Module
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+
+@Module(includes = [DebugNetworkModule::class])
+@InstallIn(SingletonComponent::class)
+object DebugModule
\ No newline at end of file
diff --git a/src/data/src/debug/java/fr/iut/alldev/allin/data/di/DebugNetworkModule.kt b/src/data/src/debug/java/fr/iut/alldev/allin/data/di/DebugNetworkModule.kt
new file mode 100644
index 0000000..8b47e52
--- /dev/null
+++ b/src/data/src/debug/java/fr/iut/alldev/allin/data/di/DebugNetworkModule.kt
@@ -0,0 +1,25 @@
+package fr.iut.alldev.allin.data.di
+
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import okhttp3.OkHttpClient
+import okhttp3.logging.HttpLoggingInterceptor
+import javax.inject.Singleton
+
+@Module
+@InstallIn(SingletonComponent::class)
+internal object DebugNetworkModule {
+
+    @Provides
+    @Singleton
+    fun provideOkHttpClient(): OkHttpClient =
+        OkHttpClient.Builder()
+        .addInterceptor(
+            HttpLoggingInterceptor().apply {
+                level = HttpLoggingInterceptor.Level.BODY
+            }
+        )
+        .build()
+}
\ No newline at end of file
diff --git a/src/data/src/main/java/fr/iut/alldev/allin/data/api/AllInApi.kt b/src/data/src/main/java/fr/iut/alldev/allin/data/api/AllInApi.kt
new file mode 100644
index 0000000..e96d2d4
--- /dev/null
+++ b/src/data/src/main/java/fr/iut/alldev/allin/data/api/AllInApi.kt
@@ -0,0 +1,19 @@
+package fr.iut.alldev.allin.data.api
+
+import fr.iut.alldev.allin.data.api.model.CheckUser
+import fr.iut.alldev.allin.data.api.model.ResponseUser
+import retrofit2.http.Body
+import retrofit2.http.POST
+
+
+interface AllInApi {
+    @POST("users/login")
+    suspend fun login(
+        @Body body: CheckUser
+    ): ResponseUser
+
+    @POST("users/register")
+    suspend fun register(
+        @Body body: ResponseUser
+    ): ResponseUser
+}
\ No newline at end of file
diff --git a/src/data/src/main/java/fr/iut/alldev/allin/data/api/model/ResponseUser.kt b/src/data/src/main/java/fr/iut/alldev/allin/data/api/model/ResponseUser.kt
new file mode 100644
index 0000000..122e39b
--- /dev/null
+++ b/src/data/src/main/java/fr/iut/alldev/allin/data/api/model/ResponseUser.kt
@@ -0,0 +1,20 @@
+package fr.iut.alldev.allin.data.api.model
+
+import androidx.annotation.Keep
+import kotlinx.serialization.Serializable
+
+@Keep
+@Serializable
+data class ResponseUser(
+    val username: String,
+    val email: String,
+    val password: String,
+    var nbCoins: Int,
+)
+
+@Keep
+@Serializable
+data class CheckUser(
+    val username: String,
+    val password: String,
+)
\ No newline at end of file
diff --git a/src/data/src/main/java/fr/iut/alldev/allin/data/di/ApiModule.kt b/src/data/src/main/java/fr/iut/alldev/allin/data/di/ApiModule.kt
new file mode 100644
index 0000000..9bc2238
--- /dev/null
+++ b/src/data/src/main/java/fr/iut/alldev/allin/data/di/ApiModule.kt
@@ -0,0 +1,23 @@
+package fr.iut.alldev.allin.data.di
+
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import fr.iut.alldev.allin.data.api.AllInApi
+import fr.iut.alldev.allin.data.di.NetworkModule.createRetrofit
+import okhttp3.HttpUrl
+import okhttp3.OkHttpClient
+import javax.inject.Singleton
+
+@Module
+@InstallIn(SingletonComponent::class)
+class ApiModule {
+
+    @Provides
+    @Singleton
+    fun provideAllInApi(@AllInUrl url: HttpUrl, okHttpClient: OkHttpClient): AllInApi {
+        val retrofit = createRetrofit(url = url, okHttpClient = okHttpClient)
+        return retrofit.create(AllInApi::class.java)
+    }
+}
\ No newline at end of file
diff --git a/src/data/src/main/java/fr/iut/alldev/allin/data/di/NetworkModule.kt b/src/data/src/main/java/fr/iut/alldev/allin/data/di/NetworkModule.kt
new file mode 100644
index 0000000..05ada4a
--- /dev/null
+++ b/src/data/src/main/java/fr/iut/alldev/allin/data/di/NetworkModule.kt
@@ -0,0 +1,41 @@
+package fr.iut.alldev.allin.data.di
+
+import com.jakewharton.retrofit2.converter.kotlinx.serialization.asConverterFactory
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import kotlinx.serialization.json.Json
+import okhttp3.HttpUrl
+import okhttp3.HttpUrl.Companion.toHttpUrl
+import okhttp3.MediaType.Companion.toMediaType
+import okhttp3.OkHttpClient
+import retrofit2.Retrofit
+import javax.inject.Qualifier
+
+internal val json by lazy {
+    Json {
+        ignoreUnknownKeys = true
+        encodeDefaults = false
+    }
+}
+
+@Qualifier
+@Retention(AnnotationRetention.BINARY)
+annotation class AllInUrl
+
+@Module
+@InstallIn(SingletonComponent::class)
+internal object NetworkModule {
+
+    @AllInUrl
+    @Provides
+    fun provideUrl(): HttpUrl = "https://codefirst.iut.uca.fr/containers/AllDev-api/".toHttpUrl()
+
+    fun createRetrofit(url: HttpUrl, okHttpClient: OkHttpClient): Retrofit =
+        Retrofit.Builder()
+            .client(okHttpClient)
+            .addConverterFactory(json.asConverterFactory("application/json".toMediaType()))
+            .baseUrl(url)
+            .build()
+}
\ No newline at end of file
diff --git a/src/data/src/main/java/fr/iut/alldev/allin/data/repository/UserRepository.kt b/src/data/src/main/java/fr/iut/alldev/allin/data/repository/UserRepository.kt
index 2b7ebe4..d441409 100644
--- a/src/data/src/main/java/fr/iut/alldev/allin/data/repository/UserRepository.kt
+++ b/src/data/src/main/java/fr/iut/alldev/allin/data/repository/UserRepository.kt
@@ -1,4 +1,13 @@
 package fr.iut.alldev.allin.data.repository
 
 abstract class UserRepository {
+    abstract suspend fun login(
+        username: String,
+        password: String
+    )
+    abstract suspend fun register(
+        username: String,
+        email: String,
+        password: String
+    )
 }
\ No newline at end of file
diff --git a/src/data/src/main/java/fr/iut/alldev/allin/data/repository/impl/UserRepositoryImpl.kt b/src/data/src/main/java/fr/iut/alldev/allin/data/repository/impl/UserRepositoryImpl.kt
index 7e0194f..d946253 100644
--- a/src/data/src/main/java/fr/iut/alldev/allin/data/repository/impl/UserRepositoryImpl.kt
+++ b/src/data/src/main/java/fr/iut/alldev/allin/data/repository/impl/UserRepositoryImpl.kt
@@ -1,10 +1,32 @@
 package fr.iut.alldev.allin.data.repository.impl
 
+import fr.iut.alldev.allin.data.api.AllInApi
+import fr.iut.alldev.allin.data.api.model.CheckUser
+import fr.iut.alldev.allin.data.api.model.ResponseUser
 import fr.iut.alldev.allin.data.repository.UserRepository
 import javax.inject.Inject
 
 class UserRepositoryImpl @Inject constructor(
-
+    private val api: AllInApi,
 ) : UserRepository() {
+    override suspend fun login(username: String, password: String) {
+        api.login(
+            CheckUser(
+                username = username,
+                password = password
+            )
+        )
+    }
+
+    override suspend fun register(username: String, email: String, password: String) {
+        api.register(
+            ResponseUser(
+                username = username,
+                email = email,
+                password = password,
+                nbCoins = 0
+            )
+        )
+    }
 
 }
\ No newline at end of file
diff --git a/src/data/src/release/java/fr.iut.alldev.allin.data.di/ReleaseModule.kt b/src/data/src/release/java/fr.iut.alldev.allin.data.di/ReleaseModule.kt
new file mode 100644
index 0000000..02df214
--- /dev/null
+++ b/src/data/src/release/java/fr.iut.alldev.allin.data.di/ReleaseModule.kt
@@ -0,0 +1,13 @@
+package fr.iut.alldev.allin.data.di
+
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import okhttp3.OkHttpClient
+import okhttp3.logging.HttpLoggingInterceptor
+import javax.inject.Singleton
+
+@Module(includes = [ReleaseNetworkModule::class])
+@InstallIn(SingletonComponent::class)
+object ReleaseModule
\ No newline at end of file
diff --git a/src/data/src/release/java/fr.iut.alldev.allin.data.di/ReleaseNetworkModule.kt b/src/data/src/release/java/fr.iut.alldev.allin.data.di/ReleaseNetworkModule.kt
new file mode 100644
index 0000000..328e8a8
--- /dev/null
+++ b/src/data/src/release/java/fr.iut.alldev.allin.data.di/ReleaseNetworkModule.kt
@@ -0,0 +1,20 @@
+package fr.iut.alldev.allin.data.di
+
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import okhttp3.OkHttpClient
+import okhttp3.logging.HttpLoggingInterceptor
+import javax.inject.Singleton
+
+@Module
+@InstallIn(SingletonComponent::class)
+internal object ReleaseNetworkModule {
+
+    @Provides
+    @Singleton
+    fun provideOkHttpClient(): OkHttpClient =
+        OkHttpClient.Builder()
+            .build()
+}
\ No newline at end of file