diff --git a/.idea/caches/build_file_checksums.ser b/.idea/caches/build_file_checksums.ser
index b6dd91a10d..11f62eee62 100644
Binary files a/.idea/caches/build_file_checksums.ser and b/.idea/caches/build_file_checksums.ser differ
diff --git a/.idea/dictionaries/ganfra.xml b/.idea/dictionaries/ganfra.xml
index 2c6e3c0cba..a9343c033e 100644
--- a/.idea/dictionaries/ganfra.xml
+++ b/.idea/dictionaries/ganfra.xml
@@ -3,6 +3,7 @@
     <words>
       <w>coroutine</w>
       <w>moshi</w>
+      <w>synchronizer</w>
     </words>
   </dictionary>
 </component>
\ No newline at end of file
diff --git a/app/src/main/java/im/vector/riotredesign/features/home/HomeActivity.kt b/app/src/main/java/im/vector/riotredesign/features/home/HomeActivity.kt
index 93953b7fd7..4955741e63 100644
--- a/app/src/main/java/im/vector/riotredesign/features/home/HomeActivity.kt
+++ b/app/src/main/java/im/vector/riotredesign/features/home/HomeActivity.kt
@@ -3,14 +3,45 @@ package im.vector.riotredesign.features.home
 import android.content.Context
 import android.content.Intent
 import android.os.Bundle
+import android.view.View
+import android.widget.Toast
+import im.vector.matrix.android.api.Matrix
+import im.vector.matrix.android.api.MatrixCallback
+import im.vector.matrix.android.api.failure.Failure
+import im.vector.matrix.android.internal.events.sync.data.SyncResponse
 import im.vector.riotredesign.R
 import im.vector.riotredesign.core.platform.RiotActivity
+import kotlinx.android.synthetic.main.activity_home.*
+import org.koin.android.ext.android.inject
 
 class HomeActivity : RiotActivity() {
 
+    private val matrix by inject<Matrix>()
+    private val synchronizer = matrix.currentSession?.synchronizer()
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_home)
+        synchronizeButton.setOnClickListener { synchronize() }
+    }
+
+    private fun synchronize() {
+        synchronizeButton.visibility = View.GONE
+        loadingView.visibility = View.VISIBLE
+        synchronizer?.synchronize(object : MatrixCallback<SyncResponse> {
+            override fun onSuccess(data: SyncResponse?) {
+                synchronizeButton.visibility = View.VISIBLE
+                loadingView.visibility = View.GONE
+                Toast.makeText(this@HomeActivity, "Success", Toast.LENGTH_LONG).show()
+
+            }
+
+            override fun onFailure(failure: Failure) {
+                synchronizeButton.visibility = View.VISIBLE
+                loadingView.visibility = View.GONE
+                Toast.makeText(this@HomeActivity, failure.toString(), Toast.LENGTH_LONG).show()
+            }
+        })
     }
 
 
diff --git a/app/src/main/java/im/vector/riotredesign/features/login/LoginActivity.kt b/app/src/main/java/im/vector/riotredesign/features/login/LoginActivity.kt
index 70078f580f..31d8b37b3c 100644
--- a/app/src/main/java/im/vector/riotredesign/features/login/LoginActivity.kt
+++ b/app/src/main/java/im/vector/riotredesign/features/login/LoginActivity.kt
@@ -5,9 +5,9 @@ import android.view.View
 import android.widget.Toast
 import im.vector.matrix.android.api.Matrix
 import im.vector.matrix.android.api.MatrixCallback
-import im.vector.matrix.android.api.failure.Failure
-import im.vector.matrix.android.api.auth.data.Credentials
+import im.vector.matrix.android.api.session.Session
 import im.vector.matrix.android.api.auth.data.HomeServerConnectionConfig
+import im.vector.matrix.android.api.failure.Failure
 import im.vector.riotredesign.R
 import im.vector.riotredesign.core.platform.RiotActivity
 import im.vector.riotredesign.features.home.HomeActivity
@@ -17,10 +17,8 @@ import org.koin.android.ext.android.inject
 class LoginActivity : RiotActivity() {
 
     private val matrix by inject<Matrix>()
-
     private val homeServerConnectionConfig = HomeServerConnectionConfig("https://matrix.org/")
-    private val session = matrix.createSession(homeServerConnectionConfig)
-    private val authenticator = session.authenticator()
+    private val authenticator = matrix.authenticator()
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -32,8 +30,9 @@ class LoginActivity : RiotActivity() {
         val login = loginField.text.trim().toString()
         val password = passwordField.text.trim().toString()
         progressBar.visibility = View.VISIBLE
-        authenticator.authenticate(login, password, object : MatrixCallback<Credentials> {
-            override fun onSuccess(data: Credentials?) {
+        authenticator.authenticate(homeServerConnectionConfig, login, password, object : MatrixCallback<Session> {
+            override fun onSuccess(data: Session?) {
+                matrix.currentSession = data
                 goToHomeScreen()
             }
 
diff --git a/app/src/main/res/layout/activity_home.xml b/app/src/main/res/layout/activity_home.xml
index 84615cdd2f..3078248ee8 100644
--- a/app/src/main/res/layout/activity_home.xml
+++ b/app/src/main/res/layout/activity_home.xml
@@ -7,20 +7,34 @@
     android:orientation="vertical"
     tools:context=".features.login.LoginActivity">
 
-
-    <TextView
-        android:text="activity_home"
+    <ProgressBar
+        android:id="@+id/loadingView"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginBottom="8dp"
         android:layout_marginEnd="8dp"
         android:layout_marginStart="8dp"
         android:layout_marginTop="8dp"
+        android:visibility="gone"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
 
 
+    <Button
+        android:id="@+id/synchronizeButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="8dp"
+        android:layout_marginEnd="8dp"
+        android:layout_marginStart="8dp"
+        android:layout_marginTop="8dp"
+        android:text="Synchronize"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
 
 </android.support.constraint.ConstraintLayout>
\ No newline at end of file
diff --git a/matrix-sdk-android/build.gradle b/matrix-sdk-android/build.gradle
index d8c5b24631..2c8cb8419d 100644
--- a/matrix-sdk-android/build.gradle
+++ b/matrix-sdk-android/build.gradle
@@ -57,11 +57,9 @@ dependencies {
     implementation 'com.squareup.okhttp3:logging-interceptor:3.10.0'
     implementation 'com.squareup.okio:okio:1.15.0'
 
-    implementation "com.squareup.moshi:moshi-kotlin:$moshi_version"
     implementation "com.squareup.moshi:moshi-adapters:$moshi_version"
     kapt "com.squareup.moshi:moshi-kotlin-codegen:$moshi_version"
 
-
     // Paging
     implementation "android.arch.paging:runtime:1.0.1"
 
@@ -69,6 +67,10 @@ dependencies {
     implementation "org.koin:koin-core:$koin_version"
     implementation "org.koin:koin-core-ext:$koin_version"
 
+    // Logging
+    implementation 'com.jakewharton.timber:timber:4.7.1'
+
+
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'com.android.support.test:runner:1.0.2'
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
diff --git a/matrix-sdk-android/objectbox-models/default.json b/matrix-sdk-android/objectbox-models/default.json
index 3717f95e0e..b4204c652b 100644
--- a/matrix-sdk-android/objectbox-models/default.json
+++ b/matrix-sdk-android/objectbox-models/default.json
@@ -4,47 +4,64 @@
   "_note3": "If you have VCS merge conflicts, you must resolve them according to ObjectBox docs.",
   "entities": [
     {
-      "id": "1:637433444018824383",
-      "lastPropertyId": "6:2515822585258942903",
+      "id": "3:213989653016909134",
+      "lastPropertyId": "6:8192129106205548340",
       "name": "Credentials",
       "properties": [
         {
-          "id": "1:6211403495341530846",
+          "id": "1:3516672544602138732",
           "name": "id"
         },
         {
-          "id": "2:1774175862476960436",
+          "id": "2:8457998089049891725",
+          "indexId": "1:7573100044105293219",
           "name": "userId"
         },
         {
-          "id": "3:5757014528669120452",
+          "id": "3:878535388660167894",
           "name": "homeServer"
         },
         {
-          "id": "4:6085081322264805865",
+          "id": "4:7030303501035684102",
           "name": "accessToken"
         },
         {
-          "id": "5:5476767963007280768",
+          "id": "5:7193051897929077560",
           "name": "refreshToken"
         },
         {
-          "id": "6:2515822585258942903",
+          "id": "6:8192129106205548340",
           "name": "deviceId"
         }
       ],
       "relations": []
     }
   ],
-  "lastEntityId": "1:637433444018824383",
-  "lastIndexId": "0:0",
+  "lastEntityId": "3:213989653016909134",
+  "lastIndexId": "1:7573100044105293219",
   "lastRelationId": "0:0",
   "lastSequenceId": "0:0",
   "modelVersion": 4,
   "modelVersionParserMinimum": 4,
-  "retiredEntityUids": [],
+  "retiredEntityUids": [
+    637433444018824383,
+    5577202525246066978
+  ],
   "retiredIndexUids": [],
-  "retiredPropertyUids": [],
+  "retiredPropertyUids": [
+    6211403495341530846,
+    1774175862476960436,
+    5757014528669120452,
+    6085081322264805865,
+    5476767963007280768,
+    2515822585258942903,
+    1374359365665650669,
+    2615322165288227076,
+    8258973118557394726,
+    4167129800901721265,
+    4654729568692986907,
+    958528673818813300
+  ],
   "retiredRelationUids": [],
   "version": 1
 }
\ No newline at end of file
diff --git a/matrix-sdk-android/objectbox-models/default.json.bak b/matrix-sdk-android/objectbox-models/default.json.bak
new file mode 100644
index 0000000000..8866d88ed5
--- /dev/null
+++ b/matrix-sdk-android/objectbox-models/default.json.bak
@@ -0,0 +1,66 @@
+{
+  "_note1": "KEEP THIS FILE! Check it into a version control system (VCS) like git.",
+  "_note2": "ObjectBox manages crucial IDs for your object model. See docs for details.",
+  "_note3": "If you have VCS merge conflicts, you must resolve them according to ObjectBox docs.",
+  "entities": [
+    {
+      "id": "3:213989653016909134",
+      "lastPropertyId": "6:8192129106205548340",
+      "name": "Credentials",
+      "properties": [
+        {
+          "id": "1:3516672544602138732",
+          "name": "id"
+        },
+        {
+          "id": "2:8457998089049891725",
+          "name": "userId"
+        },
+        {
+          "id": "3:878535388660167894",
+          "name": "homeServer"
+        },
+        {
+          "id": "4:7030303501035684102",
+          "name": "accessToken"
+        },
+        {
+          "id": "5:7193051897929077560",
+          "name": "refreshToken"
+        },
+        {
+          "id": "6:8192129106205548340",
+          "name": "deviceId"
+        }
+      ],
+      "relations": []
+    }
+  ],
+  "lastEntityId": "3:213989653016909134",
+  "lastIndexId": "0:0",
+  "lastRelationId": "0:0",
+  "lastSequenceId": "0:0",
+  "modelVersion": 4,
+  "modelVersionParserMinimum": 4,
+  "retiredEntityUids": [
+    637433444018824383,
+    5577202525246066978
+  ],
+  "retiredIndexUids": [],
+  "retiredPropertyUids": [
+    6211403495341530846,
+    1774175862476960436,
+    5757014528669120452,
+    6085081322264805865,
+    5476767963007280768,
+    2515822585258942903,
+    1374359365665650669,
+    2615322165288227076,
+    8258973118557394726,
+    4167129800901721265,
+    4654729568692986907,
+    958528673818813300
+  ],
+  "retiredRelationUids": [],
+  "version": 1
+}
\ No newline at end of file
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/Matrix.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/Matrix.kt
index 622a7c0f71..855a4d3d4c 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/Matrix.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/Matrix.kt
@@ -1,21 +1,42 @@
 package im.vector.matrix.android.api
 
-import im.vector.matrix.android.api.auth.data.HomeServerConnectionConfig
-import im.vector.matrix.android.internal.DefaultSession
+import android.content.Context
+import im.vector.matrix.android.BuildConfig
+import im.vector.matrix.android.api.auth.Authenticator
+import im.vector.matrix.android.api.session.Session
+import im.vector.matrix.android.api.thread.MainThreadExecutor
+import im.vector.matrix.android.internal.auth.AuthModule
 import im.vector.matrix.android.internal.di.MatrixModule
 import im.vector.matrix.android.internal.di.NetworkModule
+import org.koin.standalone.KoinComponent
 import org.koin.standalone.StandAloneContext.loadKoinModules
+import org.koin.standalone.inject
+import timber.log.Timber
+import timber.log.Timber.DebugTree
+import java.util.concurrent.Executor
 
-class Matrix(matrixOptions: MatrixOptions) {
+
+class Matrix(matrixOptions: MatrixOptions) : KoinComponent {
+
+    private val authenticator by inject<Authenticator>()
+
+    var currentSession: Session? = null
 
     init {
         val matrixModule = MatrixModule(matrixOptions)
         val networkModule = NetworkModule()
-        loadKoinModules(listOf(matrixModule, networkModule))
+        val authModule = AuthModule(matrixOptions.context)
+        loadKoinModules(listOf(matrixModule, networkModule, authModule))
+        if (BuildConfig.DEBUG) {
+            Timber.plant(DebugTree())
+        }
     }
 
-    fun createSession(homeServerConnectionConfig: HomeServerConnectionConfig): Session {
-        return DefaultSession(homeServerConnectionConfig)
+    fun authenticator(): Authenticator {
+        return authenticator
     }
 
 }
+
+data class MatrixOptions(val context: Context,
+                         val mainExecutor: Executor = MainThreadExecutor())
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/MatrixOptions.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/MatrixOptions.kt
deleted file mode 100644
index d6d7849392..0000000000
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/MatrixOptions.kt
+++ /dev/null
@@ -1,8 +0,0 @@
-package im.vector.matrix.android.api
-
-import android.content.Context
-import im.vector.matrix.android.api.thread.MainThreadExecutor
-import java.util.concurrent.Executor
-
-data class MatrixOptions(val context: Context,
-                         val mainExecutor: Executor = MainThreadExecutor())
\ No newline at end of file
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/Session.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/Session.kt
deleted file mode 100644
index c356a8add0..0000000000
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/Session.kt
+++ /dev/null
@@ -1,11 +0,0 @@
-package im.vector.matrix.android.api
-
-import im.vector.matrix.android.api.auth.Authenticator
-
-interface Session {
-
-    fun authenticator(): Authenticator
-
-    fun close()
-
-}
\ No newline at end of file
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/auth/Authenticator.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/auth/Authenticator.kt
index 143824bbdb..6c72e104ea 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/auth/Authenticator.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/auth/Authenticator.kt
@@ -1,11 +1,12 @@
 package im.vector.matrix.android.api.auth
 
 import im.vector.matrix.android.api.MatrixCallback
+import im.vector.matrix.android.api.session.Session
+import im.vector.matrix.android.api.auth.data.HomeServerConnectionConfig
 import im.vector.matrix.android.api.util.Cancelable
-import im.vector.matrix.android.api.auth.data.Credentials
 
 interface Authenticator {
 
-    fun authenticate(login: String, password: String, callback: MatrixCallback<Credentials>): Cancelable
+    fun authenticate(homeServerConnectionConfig: HomeServerConnectionConfig, login: String, password: String, callback: MatrixCallback<Session>): Cancelable
 
 }
\ No newline at end of file
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/auth/CredentialsStore.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/auth/CredentialsStore.kt
index 7e095fd8e2..fd74d89da5 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/auth/CredentialsStore.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/auth/CredentialsStore.kt
@@ -1,6 +1,6 @@
 package im.vector.matrix.android.api.auth
 
-import im.vector.matrix.android.api.auth.data.Credentials
+import im.vector.matrix.android.internal.auth.data.Credentials
 
 interface CredentialsStore {
 
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/auth/data/Credentials.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/auth/data/Credentials.kt
deleted file mode 100644
index 6002d9c918..0000000000
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/auth/data/Credentials.kt
+++ /dev/null
@@ -1,15 +0,0 @@
-package im.vector.matrix.android.api.auth.data
-
-import com.squareup.moshi.Json
-import com.squareup.moshi.JsonClass
-import io.objectbox.annotation.Entity
-import io.objectbox.annotation.Id
-
-@Entity
-@JsonClass(generateAdapter = true)
-data class Credentials(@Id var id: Long = 0,
-                       @Json(name = "user_id") val userId: String,
-                       @Json(name = "home_server") val homeServer: String,
-                       @Json(name = "access_token") val accessToken: String,
-                       @Json(name = "refresh_token") val refreshToken: String?,
-                       @Json(name = "device_id") val deviceId: String?)
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/events/Event.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/events/Event.kt
index cda35ff109..e230e31fcc 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/events/Event.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/events/Event.kt
@@ -1,31 +1,17 @@
 package im.vector.matrix.android.api.events
 
 import com.squareup.moshi.Json
-import com.squareup.moshi.Moshi
+import com.squareup.moshi.JsonClass
 
+@JsonClass(generateAdapter = true)
 data class Event(
-        @Json(name = "event_id") val eventId: String,
-        @Json(name = "type") val type: EventType,
-        @Json(name = "content") val content: String,
-        @Json(name = "origin_server_ts") val originServerTs: Long,
-        @Json(name = "prev_content") val prevContent: String? = null,
+        @Json(name = "type") val type: String,
+        @Json(name = "event_id") val eventId: String? = null,
+        @Json(name = "content") val content: Map<String, Any>? = null,
+        @Json(name = "prev_content") val prevContent: Map<String, Any>? = null,
+        @Json(name = "origin_server_ts") val originServerTs: Long? = null,
         @Json(name = "sender") val sender: String? = null,
         @Json(name = "state_key") val stateKey: String? = null,
         @Json(name = "room_id") val roomId: String? = null,
         @Json(name = "unsigned_data") val unsignedData: UnsignedData? = null
-) {
-
-    inline fun <reified T> content(): T? {
-        val moshi = Moshi.Builder().build()
-        return moshi.adapter<T>(T::class.java).fromJson(content)
-    }
-
-    inline fun <reified T> prevContent(): T? {
-        if (prevContent == null) {
-            return null
-        }
-        val moshi = Moshi.Builder().build()
-        return moshi.adapter<T>(T::class.java).fromJson(prevContent)
-    }
-
-}
+)
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/events/EventContent.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/events/EventContent.kt
new file mode 100644
index 0000000000..4b7d7b5dbe
--- /dev/null
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/events/EventContent.kt
@@ -0,0 +1,3 @@
+package im.vector.matrix.android.api.events
+
+class EventContent : HashMap<Any, Any>()
\ No newline at end of file
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/events/EventType.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/events/EventType.kt
index 9d3f3967ac..efc34a95d6 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/events/EventType.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/events/EventType.kt
@@ -40,5 +40,4 @@ enum class EventType {
     @Json(name ="m.room.related_groups") STATE_RELATED_GROUPS,
     @Json(name ="m.room.pinned_events") STATE_PINNED_EVENT
 
-
 }
\ No newline at end of file
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/events/UnsignedData.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/events/UnsignedData.kt
index d3aff57821..4bd9ac176d 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/events/UnsignedData.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/events/UnsignedData.kt
@@ -1,7 +1,9 @@
 package im.vector.matrix.android.api.events
 
 import com.squareup.moshi.Json
+import com.squareup.moshi.JsonClass
 
+@JsonClass(generateAdapter = true)
 data class UnsignedData(
         @Json(name = "age") val age: Int,
         @Json(name = "redacted_because") val redactedEvent: Event? = null,
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/Session.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/Session.kt
new file mode 100644
index 0000000000..607e303881
--- /dev/null
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/Session.kt
@@ -0,0 +1,11 @@
+package im.vector.matrix.android.api.session
+
+import im.vector.matrix.android.internal.events.sync.Synchronizer
+
+interface Session {
+
+    fun synchronizer(): Synchronizer
+
+    fun close()
+
+}
\ No newline at end of file
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/DefaultSession.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/DefaultSession.kt
deleted file mode 100644
index 9de27345f1..0000000000
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/DefaultSession.kt
+++ /dev/null
@@ -1,37 +0,0 @@
-package im.vector.matrix.android.internal
-
-import im.vector.matrix.android.api.Session
-import im.vector.matrix.android.api.auth.Authenticator
-import im.vector.matrix.android.api.auth.data.HomeServerConnectionConfig
-import im.vector.matrix.android.internal.auth.LoginModule
-import org.koin.core.scope.Scope
-import org.koin.standalone.KoinComponent
-import org.koin.standalone.StandAloneContext
-import org.koin.standalone.getKoin
-import org.koin.standalone.inject
-
-class DefaultSession(val homeServerConnectionConfig: HomeServerConnectionConfig) : Session, KoinComponent {
-
-    private val authenticator by inject<Authenticator>()
-    private val scope: Scope
-
-    init {
-        val loginModule = LoginModule(homeServerConnectionConfig)
-        StandAloneContext.loadKoinModules(listOf(loginModule))
-        scope = getKoin().createScope(SCOPE)
-    }
-
-    override fun authenticator(): Authenticator {
-        return authenticator
-    }
-
-    override fun close() {
-        scope.close()
-    }
-
-    companion object {
-        const val SCOPE: String = "session"
-    }
-
-
-}
\ No newline at end of file
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/LoginApi.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/AuthAPI.kt
similarity index 88%
rename from matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/LoginApi.kt
rename to matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/AuthAPI.kt
index 7d7a909c0f..3e4b1139f9 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/LoginApi.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/AuthAPI.kt
@@ -1,6 +1,6 @@
 package im.vector.matrix.android.internal.auth
 
-import im.vector.matrix.android.api.auth.data.Credentials
+import im.vector.matrix.android.internal.auth.data.Credentials
 import im.vector.matrix.android.internal.auth.data.PasswordLoginParams
 import im.vector.matrix.android.internal.network.NetworkConstants
 import kotlinx.coroutines.Deferred
@@ -11,7 +11,7 @@ import retrofit2.http.POST
 /**
  * The login REST API.
  */
-interface LoginApi {
+interface AuthAPI {
 
     /**
      * Pass params to the server for the current login phase.
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/AuthModule.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/AuthModule.kt
new file mode 100644
index 0000000000..46ec16555a
--- /dev/null
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/AuthModule.kt
@@ -0,0 +1,39 @@
+package im.vector.matrix.android.internal.auth
+
+import android.content.Context
+import im.vector.matrix.android.api.auth.Authenticator
+import im.vector.matrix.android.api.auth.CredentialsStore
+import im.vector.matrix.android.internal.auth.data.Credentials
+import im.vector.matrix.android.internal.auth.data.MyObjectBox
+import im.vector.matrix.android.internal.auth.db.ObjectBoxCredentialsStore
+import io.objectbox.Box
+import io.objectbox.BoxStore
+import org.koin.dsl.context.ModuleDefinition
+import org.koin.dsl.module.Module
+import org.koin.dsl.module.module
+
+private const val AUTH_BOX_STORE = "AUTH_BOX_STORE"
+
+class AuthModule(private val context: Context) : Module {
+
+    override fun invoke(): ModuleDefinition = module {
+
+        single {
+            DefaultAuthenticator(get(), get(), get(), get()) as Authenticator
+        }
+
+        single(name = AUTH_BOX_STORE) {
+            MyObjectBox.builder().androidContext(context).build()
+        }
+
+        single {
+            val boxStore = get(name = AUTH_BOX_STORE) as BoxStore
+            boxStore.boxFor(Credentials::class.java) as Box<Credentials>
+        }
+
+        single {
+            ObjectBoxCredentialsStore(get()) as CredentialsStore
+        }
+
+    }.invoke()
+}
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/DefaultAuthenticator.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/DefaultAuthenticator.kt
index 6ef7269d3b..a1ea30688b 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/DefaultAuthenticator.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/DefaultAuthenticator.kt
@@ -2,36 +2,49 @@ package im.vector.matrix.android.internal.auth
 
 import com.squareup.moshi.Moshi
 import im.vector.matrix.android.api.MatrixCallback
+import im.vector.matrix.android.api.session.Session
 import im.vector.matrix.android.api.auth.Authenticator
 import im.vector.matrix.android.api.auth.CredentialsStore
-import im.vector.matrix.android.api.auth.data.Credentials
+import im.vector.matrix.android.api.auth.data.HomeServerConnectionConfig
 import im.vector.matrix.android.api.util.Cancelable
-import im.vector.matrix.android.internal.util.MatrixCoroutineDispatchers
-import im.vector.matrix.android.internal.util.map
+import im.vector.matrix.android.internal.session.DefaultSession
+import im.vector.matrix.android.internal.auth.data.Credentials
 import im.vector.matrix.android.internal.auth.data.PasswordLoginParams
 import im.vector.matrix.android.internal.network.executeRequest
 import im.vector.matrix.android.internal.util.CancelableCoroutine
+import im.vector.matrix.android.internal.util.MatrixCoroutineDispatchers
+import im.vector.matrix.android.internal.util.map
 import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.launch
+import retrofit2.Retrofit
 
-class DefaultAuthenticator(private val loginApi: LoginApi,
+class DefaultAuthenticator(private val retrofitBuilder: Retrofit.Builder,
                            private val jsonMapper: Moshi,
                            private val coroutineDispatchers: MatrixCoroutineDispatchers,
                            private val credentialsStore: CredentialsStore) : Authenticator {
 
-    override fun authenticate(login: String, password: String, callback: MatrixCallback<Credentials>): Cancelable {
+    override fun authenticate(homeServerConnectionConfig: HomeServerConnectionConfig, login: String, password: String, callback: MatrixCallback<Session>): Cancelable {
+        val authAPI = buildAuthAPI(homeServerConnectionConfig)
         val job = GlobalScope.launch(coroutineDispatchers.main) {
             val loginParams = PasswordLoginParams.userIdentifier(login, password, "Mobile")
             val loginResult = executeRequest<Credentials> {
-                apiCall = loginApi.login(loginParams)
+                apiCall = authAPI.login(loginParams)
                 moshi = jsonMapper
                 dispatcher = coroutineDispatchers.io
             }.map {
                 it?.apply { credentialsStore.save(it) }
+            }.map {
+                DefaultSession(homeServerConnectionConfig)
             }
             loginResult.either({ callback.onFailure(it) }, { callback.onSuccess(it) })
         }
         return CancelableCoroutine(job)
     }
 
+    private fun buildAuthAPI(homeServerConnectionConfig: HomeServerConnectionConfig): AuthAPI {
+        val retrofit = retrofitBuilder.baseUrl(homeServerConnectionConfig.hsUri).build()
+        return retrofit.create(AuthAPI::class.java)
+    }
+
+
 }
\ No newline at end of file
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/LoginModule.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/LoginModule.kt
deleted file mode 100644
index 950bc8830b..0000000000
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/LoginModule.kt
+++ /dev/null
@@ -1,33 +0,0 @@
-package im.vector.matrix.android.internal.auth
-
-import im.vector.matrix.android.api.auth.Authenticator
-import im.vector.matrix.android.api.auth.data.HomeServerConnectionConfig
-import im.vector.matrix.android.internal.DefaultSession
-import org.koin.dsl.context.ModuleDefinition
-import org.koin.dsl.module.Module
-import org.koin.dsl.module.module
-import retrofit2.Retrofit
-
-class LoginModule(private val connectionConfig: HomeServerConnectionConfig) : Module {
-
-    override fun invoke(): ModuleDefinition = module {
-        scope(DefaultSession.SCOPE) {
-            Retrofit.Builder()
-                    .client(get())
-                    .baseUrl(connectionConfig.hsUri)
-                    .addConverterFactory(get())
-                    .addCallAdapterFactory(get())
-                    .build()
-        }
-
-        scope(DefaultSession.SCOPE) {
-            val retrofit: Retrofit = get()
-            retrofit.create(LoginApi::class.java)
-        }
-
-        scope(DefaultSession.SCOPE) {
-            DefaultAuthenticator(get(), get(), get(), get()) as Authenticator
-        }
-
-    }.invoke()
-}
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/data/Credentials.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/data/Credentials.kt
new file mode 100644
index 0000000000..150c034198
--- /dev/null
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/data/Credentials.kt
@@ -0,0 +1,17 @@
+package im.vector.matrix.android.internal.auth.data
+
+import com.squareup.moshi.Json
+import com.squareup.moshi.JsonClass
+import io.objectbox.annotation.Entity
+import io.objectbox.annotation.Id
+import io.objectbox.annotation.Index
+
+@Entity
+@JsonClass(generateAdapter = true)
+data class Credentials(
+        @Id var id: Long = 0,
+        @Index @Json(name = "user_id") val userId: String,
+        @Json(name = "home_server") val homeServer: String,
+        @Json(name = "access_token") val accessToken: String,
+        @Json(name = "refresh_token") val refreshToken: String?,
+        @Json(name = "device_id") val deviceId: String?)
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/db/InMemoryCredentialsStore.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/db/InMemoryCredentialsStore.kt
deleted file mode 100644
index 16f629373b..0000000000
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/db/InMemoryCredentialsStore.kt
+++ /dev/null
@@ -1,18 +0,0 @@
-package im.vector.matrix.android.internal.auth.db
-
-import im.vector.matrix.android.api.auth.CredentialsStore
-import im.vector.matrix.android.api.auth.data.Credentials
-
-class InMemoryCredentialsStore : CredentialsStore {
-
-    var credentials: Credentials? = null
-
-    override fun get(): Credentials? {
-        return credentials
-    }
-
-    override fun save(credentials: Credentials) {
-        this.credentials = credentials.copy()
-    }
-
-}
\ No newline at end of file
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/db/ObjectBoxCredentialsStore.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/db/ObjectBoxCredentialsStore.kt
index fe962519d8..104e7060a9 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/db/ObjectBoxCredentialsStore.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/db/ObjectBoxCredentialsStore.kt
@@ -1,7 +1,7 @@
 package im.vector.matrix.android.internal.auth.db
 
 import im.vector.matrix.android.api.auth.CredentialsStore
-import im.vector.matrix.android.api.auth.data.Credentials
+import im.vector.matrix.android.internal.auth.data.Credentials
 import io.objectbox.Box
 
 class ObjectBoxCredentialsStore(private val box: Box<Credentials>) : CredentialsStore {
@@ -11,7 +11,7 @@ class ObjectBoxCredentialsStore(private val box: Box<Credentials>) : Credentials
     }
 
     override fun get(): Credentials? {
-        return box.all.firstOrNull()
+        return box.all.lastOrNull()
     }
 
 }
\ No newline at end of file
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/di/MatrixModule.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/di/MatrixModule.kt
index f1a7e724cc..c2abfcd8fe 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/di/MatrixModule.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/di/MatrixModule.kt
@@ -1,13 +1,7 @@
 package im.vector.matrix.android.internal.di
 
 import im.vector.matrix.android.api.MatrixOptions
-import im.vector.matrix.android.api.auth.CredentialsStore
-import im.vector.matrix.android.api.auth.data.Credentials
-import im.vector.matrix.android.api.auth.data.MyObjectBox
 import im.vector.matrix.android.internal.util.MatrixCoroutineDispatchers
-import im.vector.matrix.android.internal.auth.db.ObjectBoxCredentialsStore
-import io.objectbox.Box
-import io.objectbox.BoxStore
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.IO
 import kotlinx.coroutines.asCoroutineDispatcher
@@ -23,19 +17,5 @@ class MatrixModule(private val options: MatrixOptions) : Module {
         single {
             MatrixCoroutineDispatchers(io = Dispatchers.IO, computation = Dispatchers.IO, main = options.mainExecutor.asCoroutineDispatcher())
         }
-
-        single {
-            MyObjectBox.builder().androidContext(options.context).build()
-        }
-
-        single {
-            val boxStore = get() as BoxStore
-            boxStore.boxFor(Credentials::class.java) as Box<Credentials>
-        }
-
-        single {
-            ObjectBoxCredentialsStore(get()) as CredentialsStore
-        }
-
     }.invoke()
 }
\ No newline at end of file
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/di/NetworkModule.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/di/NetworkModule.kt
index 15f2a84851..1435aa926b 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/di/NetworkModule.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/di/NetworkModule.kt
@@ -10,9 +10,12 @@ import org.koin.dsl.module.Module
 import org.koin.dsl.module.module
 import retrofit2.CallAdapter
 import retrofit2.Converter
+import retrofit2.Retrofit
 import retrofit2.converter.moshi.MoshiConverterFactory
+import timber.log.Timber
+import java.util.concurrent.TimeUnit
 
-class NetworkModule() : Module {
+class NetworkModule : Module {
 
     override fun invoke(): ModuleDefinition = module {
 
@@ -21,17 +24,23 @@ class NetworkModule() : Module {
         }
 
         single {
-            HttpLoggingInterceptor().apply { level = HttpLoggingInterceptor.Level.BODY }
+            val logger = HttpLoggingInterceptor.Logger { message -> Timber.v(message) }
+            HttpLoggingInterceptor(logger).apply { level = HttpLoggingInterceptor.Level.BODY }
         }
 
         single {
             OkHttpClient.Builder()
+                    .connectTimeout(30, TimeUnit.SECONDS)
+                    .readTimeout(30, TimeUnit.SECONDS)
+                    .writeTimeout(30, TimeUnit.SECONDS)
                     .addInterceptor(get() as AccessTokenInterceptor)
                     .addInterceptor(get() as HttpLoggingInterceptor)
                     .build()
         }
 
-        single { Moshi.Builder().build() }
+        single {
+            Moshi.Builder().build()
+        }
 
         single {
             MoshiConverterFactory.create(get()) as Converter.Factory
@@ -41,6 +50,12 @@ class NetworkModule() : Module {
             CoroutineCallAdapterFactory() as CallAdapter.Factory
         }
 
+        factory {
+            Retrofit.Builder()
+                    .client(get())
+                    .addConverterFactory(get())
+                    .addCallAdapterFactory(get())
+        }
 
     }.invoke()
 }
\ No newline at end of file
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/di/SessionModule.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/di/SessionModule.kt
new file mode 100644
index 0000000000..9129d1bc57
--- /dev/null
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/di/SessionModule.kt
@@ -0,0 +1,20 @@
+package im.vector.matrix.android.internal.di
+
+import im.vector.matrix.android.api.auth.data.HomeServerConnectionConfig
+import im.vector.matrix.android.internal.session.DefaultSession
+import org.koin.dsl.context.ModuleDefinition
+import org.koin.dsl.module.Module
+import org.koin.dsl.module.module
+import retrofit2.Retrofit
+
+class SessionModule(private val connectionConfig: HomeServerConnectionConfig) : Module {
+
+    override fun invoke(): ModuleDefinition = module {
+        scope(DefaultSession.SCOPE) {
+            val retrofitBuilder = get() as Retrofit.Builder
+            retrofitBuilder
+                    .baseUrl(connectionConfig.hsUri)
+                    .build()
+        }
+    }.invoke()
+}
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/events/sync/SyncAPI.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/events/sync/SyncAPI.kt
index c80c1de7bf..9ae00c562e 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/events/sync/SyncAPI.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/events/sync/SyncAPI.kt
@@ -1,7 +1,7 @@
 package im.vector.matrix.android.internal.events.sync
 
-import im.vector.matrix.android.internal.network.NetworkConstants
 import im.vector.matrix.android.internal.events.sync.data.SyncResponse
+import im.vector.matrix.android.internal.network.NetworkConstants
 import kotlinx.coroutines.Deferred
 import retrofit2.Response
 import retrofit2.http.GET
@@ -10,6 +10,6 @@ import retrofit2.http.QueryMap
 interface SyncAPI {
 
     @GET(NetworkConstants.URI_API_PREFIX_PATH_R0 + "sync")
-    fun sync(@QueryMap params: Map<String, Any>): Deferred<Response<SyncResponse>>
+    fun sync(@QueryMap params: Map<String, String>): Deferred<Response<SyncResponse>>
 
 }
\ No newline at end of file
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/events/sync/SyncModule.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/events/sync/SyncModule.kt
new file mode 100644
index 0000000000..2d14559a34
--- /dev/null
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/events/sync/SyncModule.kt
@@ -0,0 +1,23 @@
+package im.vector.matrix.android.internal.events.sync
+
+import im.vector.matrix.android.internal.session.DefaultSession
+import org.koin.dsl.context.ModuleDefinition
+import org.koin.dsl.module.Module
+import org.koin.dsl.module.module
+import retrofit2.Retrofit
+
+class SyncModule : Module {
+
+    override fun invoke(): ModuleDefinition = module {
+
+        scope(DefaultSession.SCOPE) {
+            val retrofit: Retrofit = get()
+            retrofit.create(SyncAPI::class.java)
+        }
+
+        scope(DefaultSession.SCOPE) {
+            Synchronizer(get(), get(), get())
+        }
+
+    }.invoke()
+}
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/events/sync/Synchronizer.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/events/sync/Synchronizer.kt
index 9c89ef03a7..ef5b1dbcd4 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/events/sync/Synchronizer.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/events/sync/Synchronizer.kt
@@ -1,11 +1,32 @@
 package im.vector.matrix.android.internal.events.sync
 
-class Synchronizer(private val syncAPI: SyncAPI) {
-
-    fun synchronize() {
+import com.squareup.moshi.Moshi
+import im.vector.matrix.android.api.MatrixCallback
+import im.vector.matrix.android.api.util.Cancelable
+import im.vector.matrix.android.internal.events.sync.data.SyncResponse
+import im.vector.matrix.android.internal.network.executeRequest
+import im.vector.matrix.android.internal.util.CancelableCoroutine
+import im.vector.matrix.android.internal.util.MatrixCoroutineDispatchers
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.launch
 
+class Synchronizer(private val syncAPI: SyncAPI,
+                   private val coroutineDispatchers: MatrixCoroutineDispatchers,
+                   private val jsonMapper: Moshi) {
 
+    fun synchronize(callback: MatrixCallback<SyncResponse>): Cancelable {
+        val job = GlobalScope.launch(coroutineDispatchers.main) {
+            val params = HashMap<String, String>()
+            params["timeout"] = "0"
+            params["filter"] = "{}"
+            val syncResponse = executeRequest<SyncResponse> {
+                apiCall = syncAPI.sync(params)
+                moshi = jsonMapper
+                dispatcher = coroutineDispatchers.io
+            }
+            syncResponse.either({ callback.onFailure(it) }, { callback.onSuccess(it) })
+        }
+        return CancelableCoroutine(job)
     }
 
-
 }
\ No newline at end of file
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/events/sync/data/SyncResponse.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/events/sync/data/SyncResponse.kt
index defc6c8319..19f97128f2 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/events/sync/data/SyncResponse.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/events/sync/data/SyncResponse.kt
@@ -1,5 +1,6 @@
 package im.vector.matrix.android.internal.events.sync.data
 
+import com.squareup.moshi.Json
 import com.squareup.moshi.JsonClass
 
 // SyncResponse represents the request response for server sync v2.
@@ -9,36 +10,36 @@ data class SyncResponse(
         /**
          * The user private data.
          */
-        val accountData: Map<String, Any> = emptyMap(),
+        @Json(name = "account_data") val accountData: Map<String, Any>? = emptyMap(),
 
         /**
          * The opaque token for the end.
          */
-        val nextBatch: String? = null,
+        @Json(name = "next_batch") val nextBatch: String? = null,
 
         /**
          * The updates to the presence status of other users.
          */
-        val presence: PresenceSyncResponse? = null,
+        @Json(name = "presence") val presence: PresenceSyncResponse? = null,
 
         /*
          * Data directly sent to one of user's devices.
          */
-        val toDevice: ToDeviceSyncResponse? = null,
+        @Json(name = "to_device") val toDevice: ToDeviceSyncResponse? = null,
 
         /**
          * List of rooms.
          */
-        val rooms: RoomsSyncResponse? = null,
+        @Json(name = "rooms") val rooms: RoomsSyncResponse? = null,
 
         /**
          * Devices list update
          */
-        val deviceLists: DeviceListResponse? = null,
+        @Json(name = "device_lists") val deviceLists: DeviceListResponse? = null,
 
         /**
          * One time keys management
          */
-        val deviceOneTimeKeysCount: DeviceOneTimeKeysCountSyncResponse? = null
+        @Json(name = "device_one_time_keys_count") val deviceOneTimeKeysCount: DeviceOneTimeKeysCountSyncResponse? = null
 
 )
\ No newline at end of file
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/DefaultSession.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/DefaultSession.kt
new file mode 100644
index 0000000000..cdf4214242
--- /dev/null
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/DefaultSession.kt
@@ -0,0 +1,38 @@
+package im.vector.matrix.android.internal.session
+
+import im.vector.matrix.android.api.session.Session
+import im.vector.matrix.android.api.auth.data.HomeServerConnectionConfig
+import im.vector.matrix.android.internal.di.SessionModule
+import im.vector.matrix.android.internal.events.sync.SyncModule
+import im.vector.matrix.android.internal.events.sync.Synchronizer
+import org.koin.core.scope.Scope
+import org.koin.standalone.KoinComponent
+import org.koin.standalone.StandAloneContext
+import org.koin.standalone.getKoin
+import org.koin.standalone.inject
+
+class DefaultSession(homeServerConnectionConfig: HomeServerConnectionConfig) : Session, KoinComponent {
+
+    private val synchronizer by inject<Synchronizer>()
+    private val scope: Scope
+
+    init {
+        val sessionModule = SessionModule(homeServerConnectionConfig)
+        val syncModule = SyncModule()
+        StandAloneContext.loadKoinModules(listOf(sessionModule, syncModule))
+        scope = getKoin().createScope(SCOPE)
+    }
+
+    override fun synchronizer(): Synchronizer {
+        return synchronizer
+    }
+
+    override fun close() {
+        scope.close()
+    }
+
+    companion object {
+        const val SCOPE: String = "session"
+    }
+
+}
\ No newline at end of file