diff --git a/Cargo.lock b/Cargo.lock
index 0d148ba..b14d04f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -370,6 +370,17 @@ version = "0.10.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "619743e34b5ba4e9703bba34deac3427c72507c7159f5fd030aea8cac0cfe341"
 
+[[package]]
+name = "async-recursion"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2cda8f4bcc10624c4e85bc66b3f452cca98cfa5ca002dc83a16aad2367641bea"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "attohttpc"
 version = "0.15.0"
@@ -700,6 +711,7 @@ dependencies = [
  "actix-multipart",
  "actix-web",
  "actix-web-actors",
+ "async-recursion",
  "bcrypt",
  "bytes",
  "chrono",
diff --git a/Cargo.toml b/Cargo.toml
index 3b020d0..f8994e1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -41,4 +41,5 @@ zip = "0.5.10"
 webpage = "1.2.0"
 gouth = "0.2.0"
 webauthn-rs = "0.3.2"
-url = "2.2.2"
\ No newline at end of file
+url = "2.2.2"
+async-recursion = "1.0.0"
\ No newline at end of file
diff --git a/src/cleanup_thread.rs b/src/cleanup_thread.rs
index b76d746..0093ef2 100644
--- a/src/cleanup_thread.rs
+++ b/src/cleanup_thread.rs
@@ -16,7 +16,8 @@ pub fn start() -> Res {
 
 /// Clean up thread handler
 fn clean_up_thread_handler() {
-    // Let the server start before doing cleanup
+    // TODO : uncomment
+    /*// Let the server start before doing cleanup
     std::thread::sleep(INITIAL_REFRESH_LOAD_INTERVAL);
 
     loop {
@@ -32,14 +33,14 @@ fn clean_up_thread_handler() {
         }
 
         std::thread::sleep(CLEAN_UP_INTERVAL);
-    }
+    }*/
 }
 
 /// Do the cleanup
-fn do_clean() -> Res {
+async fn do_clean() -> Res {
 
     // Clean old login tokens
-    account_helper::clean_up_old_access_tokens()?;
+    account_helper::clean_up_old_access_tokens().await?;
 
     // Automatic account cleanup
     for user in user_helper::get_all_users()? {
@@ -51,16 +52,16 @@ fn do_clean() -> Res {
         notifications_helper::clean_old_user_notifications(&user)?;
 
         // Clean old comments
-        comments_helper::clean_old_comments(&user)?;
+        comments_helper::clean_old_comments(&user).await?;
 
         // Clean old posts
-        posts_helper::clean_old_posts(&user)?;
+        posts_helper::clean_old_posts(&user).await?;
 
         // Clean old conversation messages
-        conversations_helper::clean_old_messages(&user)?;
+        conversations_helper::clean_old_messages(&user).await?;
 
         // Remove the account, if it have been inactive for a long time
-        account_helper::remove_if_inactive_for_too_long_time(&user)?;
+        account_helper::remove_if_inactive_for_too_long_time(&user).await?;
     }
 
     // Clean up old admin actions
diff --git a/src/controllers/account_controller.rs b/src/controllers/account_controller.rs
index f77a486..64c2cf6 100644
--- a/src/controllers/account_controller.rs
+++ b/src/controllers/account_controller.rs
@@ -94,7 +94,7 @@ pub async fn login_user(request: &mut HttpRequestHandler) -> RequestResult {
 /// Sign out user
 pub async fn logout_user(request: &mut HttpRequestHandler) -> RequestResult {
     if let Some(token) = request.user_access_token() {
-        account_helper::destroy_login_tokens(token)?;
+        account_helper::destroy_login_tokens(token).await?;
     }
 
     request.success("User disconnected.")
@@ -102,7 +102,7 @@ pub async fn logout_user(request: &mut HttpRequestHandler) -> RequestResult {
 
 /// Disconnect a user from all his devices
 pub async fn disconnect_all_devices(r: &mut HttpRequestHandler) -> RequestResult {
-    account_helper::destroy_all_user_tokens(r.user_id_ref()?)?;
+    account_helper::destroy_all_user_tokens(r.user_id_ref()?).await?;
 
     r.success("Successfully disconnected!")
 }
@@ -208,7 +208,7 @@ pub async fn delete_account(r: &mut HttpRequestHandler) -> RequestResult {
         r.forbidden("You shall not delete MY account (whoever you are, please note that hacking is bad !!!)".to_string())?;
     }
 
-    account_helper::delete(r.user_id_ref()?)?;
+    account_helper::delete(r.user_id_ref()?).await?;
 
     r.success("Account deleted.")
 }
\ No newline at end of file
diff --git a/src/controllers/calls_controller.rs b/src/controllers/calls_controller.rs
index d502b0a..7bbbb8c 100644
--- a/src/controllers/calls_controller.rs
+++ b/src/controllers/calls_controller.rs
@@ -88,7 +88,7 @@ impl UserWsRequestHandler {
 }
 
 /// Get calls configuration
-pub fn get_config(r: &mut UserWsRequestHandler) -> RequestResult {
+pub async fn get_config(r: &mut UserWsRequestHandler) -> RequestResult {
     // Check whether the user is the member of a call or not
     if let None = r.get_conn().active_call {
         r.forbidden("You do not belong to any call yet!".to_string())?;
@@ -124,7 +124,7 @@ pub fn is_conversation_having_call(conv_id: &ConvID) -> bool {
 }
 
 /// Join a call
-pub fn join_call(r: &mut UserWsRequestHandler) -> RequestResult {
+pub async fn join_call(r: &mut UserWsRequestHandler) -> RequestResult {
     let conv_id = r.post_conv("convID")?.conv_id;
 
     // Check if the conversation can have a call
@@ -135,23 +135,21 @@ pub fn join_call(r: &mut UserWsRequestHandler) -> RequestResult {
 
     // Remove any other active call with current WebSocket
     if let Some(call) = &r.get_conn().active_call {
-        make_user_leave_call(&call.conv_id, r.get_conn())?;
+        make_user_leave_call(&call.conv_id, r.get_conn()).await?;
     }
 
     // Remove any other active connection to current call of current user
-    user_ws_controller::foreach_connection(|conn| {
+    for conn in user_ws_controller::get_all_connections()? {
         if conn.user_id() != r.user_id_ref()? || conn.session.eq(&r.get_conn().session) {
             return Ok(());
         }
 
         if let Some(call) = &conn.active_call {
             if call.conv_id == conv_id {
-                make_user_leave_call(&call.conv_id, conn)?;
+                make_user_leave_call(&call.conv_id, &conn).await?;
             }
         }
-
-        Ok(())
-    })?;
+    };
 
     r.update_conn(|r| r.active_call = Some(ActiveCall {
         conv_id,
@@ -159,13 +157,13 @@ pub fn join_call(r: &mut UserWsRequestHandler) -> RequestResult {
     }))?;
 
     // Propagate event
-    events_helper::propagate_event(&Event::UserJoinedCall(&conv_id, r.user_id_ref()?))?;
+    events_helper::propagate_event(Event::UserJoinedCall(conv_id, r.user_id()?)).await?;
 
     Ok(())
 }
 
 /// Leave a call
-pub fn leave_call(r: &mut UserWsRequestHandler) -> RequestResult {
+pub async fn leave_call(r: &mut UserWsRequestHandler) -> RequestResult {
     // Warning ! For some technical reasons, we do not check if the user
     // really belongs to the conversation, so be careful when manipulating
     // conversation ID here
@@ -177,13 +175,13 @@ pub fn leave_call(r: &mut UserWsRequestHandler) -> RequestResult {
     }
 
     // Make the user leave the call
-    make_user_leave_call(&conv_id, r.get_conn())?;
+    make_user_leave_call(&conv_id, r.get_conn()).await?;
 
     r.success("Left call!")
 }
 
 /// Get the list of members of a call
-pub fn get_members_list(r: &mut UserWsRequestHandler) -> RequestResult {
+pub async fn get_members_list(r: &mut UserWsRequestHandler) -> RequestResult {
     let conv_id = r.post_call_id("callID")?;
     let mut list = vec![];
 
@@ -204,7 +202,7 @@ pub fn gen_call_hash(call_id: &ConvID, peer_id: &UserID) -> String {
 }
 
 /// Handles client signal
-pub fn on_client_signal(r: &mut UserWsRequestHandler) -> RequestResult {
+pub async fn on_client_signal(r: &mut UserWsRequestHandler) -> RequestResult {
     let call_id = r.post_call_id("callID")?;
     let peer_id = r.post_call_peer_id(&call_id, "peerID")?;
     let sig_type = r.post_string("type")?;
@@ -271,18 +269,18 @@ pub fn on_client_signal(r: &mut UserWsRequestHandler) -> RequestResult {
         }
     };
 
-    events_helper::propagate_event(&Event::NewUserCallSignal(&NewUserCallSignal {
+    events_helper::propagate_event(Event::NewUserCallSignal(NewUserCallSignal {
         call_hash: gen_call_hash(&call_id, &peer_id),
         user_id: if r.user_id_ref()? == &peer_id { None } else { Some(r.user_id()?) },
         signal,
         raw_data: r.post_string("data")?,
-    }))?;
+    })).await?;
 
     r.success("Signal sent")
 }
 
 /// Mark user ready for streaming
-pub fn mark_user_ready(r: &mut UserWsRequestHandler) -> Res {
+pub async fn mark_user_ready(r: &mut UserWsRequestHandler) -> Res {
     let call_id = r.post_call_id("callID")?;
     let user_id = r.user_id()?;
 
@@ -291,14 +289,13 @@ pub fn mark_user_ready(r: &mut UserWsRequestHandler) -> Res {
     user_ws_controller::send_message_to_specific_connections(
         |c| c.user_id() != &user_id && c.is_having_call_with_conversation(&call_id),
         |_| UserWsMessage::no_id_message("call_peer_ready", CallPeerReadyAPI::new(&call_id, r.user_id_ref()?)),
-        None::<fn(&_) -> _>,
     )?;
 
     r.success("Information propagated.")
 }
 
 /// Request an offer from the server
-pub fn request_offer(r: &mut UserWsRequestHandler) -> Res {
+pub async fn request_offer(r: &mut UserWsRequestHandler) -> Res {
     let call_id = r.post_call_id("callID")?;
 
     // The ID of the user we stream the audio / video from
@@ -308,16 +305,16 @@ pub fn request_offer(r: &mut UserWsRequestHandler) -> Res {
         r.forbidden("You can not request an offer for yourself!".to_string())?;
     }
 
-    events_helper::propagate_event(&Event::UserRequestedCallOffer(&UserCallOfferRequest {
+    events_helper::propagate_event(Event::UserRequestedCallOffer(UserCallOfferRequest {
         call_hash: gen_call_hash(&call_id, &peer_id),
         user_id: r.user_id()?,
-    }))?;
+    })).await?;
 
     r.success("Request sent")
 }
 
 /// Notify the user stopped to stream
-pub fn stop_streaming(r: &mut UserWsRequestHandler) -> Res {
+pub async fn stop_streaming(r: &mut UserWsRequestHandler) -> Res {
     let call_id = r.post_call_id("callID")?;
     let user_id = r.user_id()?;
 
@@ -329,22 +326,21 @@ pub fn stop_streaming(r: &mut UserWsRequestHandler) -> Res {
         user_ws_controller::send_message_to_specific_connections(
             |c| c.is_having_call_with_conversation(&call_id) && c.user_id() != &user_id,
             |_| UserWsMessage::no_id_message("call_peer_interrupted_streaming", CallPeerInterruptedStreamingAPI::new(&call_id, &user_id)),
-            None::<fn(&_) -> _>,
         )?;
     }
 
     // Notify proxy
-    events_helper::propagate_event(&Event::CloseCallStream(&CloseCallStream {
+    events_helper::propagate_event(Event::CloseCallStream(CloseCallStream {
         call_hash: gen_call_hash(&call_id, &user_id),
         peer_id: None,
-    }))?;
+    })).await?;
 
     r.success("ok")
 }
 
 
 /// Make the user leave the call
-pub fn make_user_leave_call(conv_id: &ConvID, connection: &UserWsConnection) -> Res {
+pub async fn make_user_leave_call(conv_id: &ConvID, connection: &UserWsConnection) -> Res {
     connection.clone().replace(|c| c.active_call = None);
 
     // Notify user (if possible)
@@ -353,39 +349,37 @@ pub fn make_user_leave_call(conv_id: &ConvID, connection: &UserWsConnection) ->
     }
 
     // Close main stream (sender)
-    events_helper::propagate_event(&Event::CloseCallStream(&CloseCallStream {
+    events_helper::propagate_event(Event::CloseCallStream(CloseCallStream {
         call_hash: gen_call_hash(&conv_id, connection.user_id()),
         peer_id: None,
-    }))?;
+    })).await?;
 
     // Close receiver streams (other users streams)
-    user_ws_controller::foreach_connection(
-        |peer_conn| {
-            if peer_conn.is_having_call_with_conversation(conv_id) && peer_conn.user_id() != connection.user_id() {
-                events_helper::propagate_event(&Event::CloseCallStream(&CloseCallStream {
-                    call_hash: gen_call_hash(&conv_id, peer_conn.user_id()),
-                    peer_id: Some(connection.user_id().clone()),
-                }))?;
-            }
-
-            Ok(())
-        },
-    )?;
+    for peer_conn in user_ws_controller::get_all_connections()? {
+        if peer_conn.is_having_call_with_conversation(conv_id) && peer_conn.user_id() != connection.user_id() {
+            events_helper::propagate_event(Event::CloseCallStream(CloseCallStream {
+                call_hash: gen_call_hash(&conv_id, peer_conn.user_id()),
+                peer_id: Some(connection.user_id().clone()),
+            })).await?;
+        }
+    };
 
     // Create a notification
-    events_helper::propagate_event(&Event::UserLeftCall(conv_id, connection.user_id()))?;
+    events_helper::propagate_event(Event::UserLeftCall(
+        conv_id.clone(),
+        connection.user_id().clone(),
+    )).await?;
 
     Ok(())
 }
 
 /// Events handler
-pub fn handle_event(e: &events_helper::Event) -> Res {
+pub async fn handle_event(e: &events_helper::Event) -> Res {
     match e {
         Event::UserJoinedCall(conv_id, user_id) => {
             user_ws_controller::send_message_to_specific_connections(
                 |c| c.is_having_call_with_conversation(conv_id) && c.user_id() != user_id,
                 |_| UserWsMessage::no_id_message("user_joined_call", JoinedCallMessage::new(conv_id, user_id)),
-                None::<fn(&_) -> _>,
             )?;
         }
 
@@ -393,13 +387,12 @@ pub fn handle_event(e: &events_helper::Event) -> Res {
             user_ws_controller::send_message_to_specific_connections(
                 |c| c.is_having_call_with_conversation(conv_id),
                 |_| UserWsMessage::no_id_message("user_left_call", LeftCallMessage::new(conv_id, user_id)),
-                None::<fn(&_) -> _>,
             )?;
         }
 
         Event::UserWsClosed(c) => {
             if let Some(call) = c.active_call.clone() {
-                make_user_leave_call(&call.conv_id, c)?;
+                make_user_leave_call(&call.conv_id, c).await?;
             }
         }
 
@@ -423,20 +416,17 @@ pub fn handle_event(e: &events_helper::Event) -> Res {
             user_ws_controller::send_message_to_specific_connections(
                 |c| c.user_id() == target_user && c.is_having_call_with_conversation(&call_id),
                 |_| UserWsMessage::no_id_message("new_call_signal", NewCallSignalAPI::new(&call_id, &peer_id, &msg.data)?),
-                None::<fn(&_) -> _>,
             )?;
         }
 
         // Handle proxy disconnect => close all active calls
         Event::ClosedRTCRelayWebSocket => {
-            user_ws_controller::foreach_connection(|f| {
+            for f in user_ws_controller::get_all_connections()? {
                 // Close all active connections
                 if let Some(call) = &f.active_call {
-                    make_user_leave_call(&call.conv_id, f)?;
+                    make_user_leave_call(&call.conv_id, &f).await?;
                 }
-
-                Ok(())
-            })?;
+            };
         }
 
         // Call active call of user (if any)
@@ -450,7 +440,7 @@ pub fn handle_event(e: &events_helper::Event) -> Res {
             })?;
 
             if let Some(c) = conn {
-                make_user_leave_call(conv_id, &c)?;
+                make_user_leave_call(conv_id, &c).await?;
             }
         }
 
@@ -465,7 +455,7 @@ pub fn handle_event(e: &events_helper::Event) -> Res {
             })?;
 
             for con in connections {
-                make_user_leave_call(conv_id, &con)?;
+                make_user_leave_call(conv_id, &con).await?;
             }
         }
 
diff --git a/src/controllers/comments_controller.rs b/src/controllers/comments_controller.rs
index 36616f2..e626dc7 100644
--- a/src/controllers/comments_controller.rs
+++ b/src/controllers/comments_controller.rs
@@ -49,13 +49,13 @@ pub async fn create(r: &mut HttpRequestHandler) -> RequestResult {
         image_path: image,
     };
 
-    let comment_id = comments_helper::create(&comment)?;
+    let comment_id = comments_helper::create(&comment).await?;
 
     // Create notifications
-    notifications_helper::create_post_notification(&r.user_id()?, post.id, NotifEventType::COMMENT_CREATED)?;
+    notifications_helper::create_post_notification(&r.user_id()?, post.id, NotifEventType::COMMENT_CREATED).await?;
 
     // Remove notifications targeting current user about the post
-    notifications_helper::delete_all_post_notifications_targeting_user(r.user_id_ref()?, post.id)?;
+    notifications_helper::delete_all_post_notifications_targeting_user(r.user_id_ref()?, post.id).await?;
 
     r.set_response(ResCreateComment::new(comment_id))
 }
@@ -72,7 +72,7 @@ pub async fn edit(r: &mut HttpRequestHandler) -> RequestResult {
     let comment = r.post_comment_with_full_access("commentID")?;
     let new_content = r.post_content("content", 2, true)?;
 
-    comments_helper::edit(comment.id, &new_content)?;
+    comments_helper::edit(comment.id, &new_content).await?;
 
     r.success("Content updated.")
 }
@@ -81,13 +81,13 @@ pub async fn edit(r: &mut HttpRequestHandler) -> RequestResult {
 pub async fn delete(r: &mut HttpRequestHandler) -> RequestResult {
     let comment = r.post_comment_with_full_access("commentID")?;
 
-    comments_helper::delete(&comment)?;
+    comments_helper::delete(&comment).await?;
 
     r.success("Comment deleted.")
 }
 
 /// Events handler
-pub fn handle_event(e: &events_helper::Event) -> Res {
+pub async fn handle_event(e: &events_helper::Event) -> Res {
     match e {
         Event::NewComment(comment) => {
             user_ws_controller::send_message_to_specific_connections(
@@ -95,8 +95,7 @@ pub fn handle_event(e: &events_helper::Event) -> Res {
                 |c| UserWsMessage::no_id_message(
                     "new_comment",
                     CommentAPI::new(comment, &Some(c.user_id().clone()))?,
-                ),
-                None::<fn(&_) -> _>,
+                )
             )?;
         }
 
@@ -106,8 +105,7 @@ pub fn handle_event(e: &events_helper::Event) -> Res {
                 |c| UserWsMessage::no_id_message(
                     "comment_updated",
                     CommentAPI::new(comment, &Some(c.user_id().clone()))?,
-                ),
-                None::<fn(&_) -> _>,
+                )
             )?;
         }
 
@@ -118,7 +116,6 @@ pub fn handle_event(e: &events_helper::Event) -> Res {
                     "comment_deleted",
                     comment.id.clone(),
                 ),
-                None::<fn(&_) -> _>,
             )?;
         }
 
diff --git a/src/controllers/conversations_controller.rs b/src/controllers/conversations_controller.rs
index e3fe6f2..eed7ecf 100644
--- a/src/controllers/conversations_controller.rs
+++ b/src/controllers/conversations_controller.rs
@@ -21,7 +21,6 @@ use crate::data::error::Res;
 use crate::data::http_request_handler::HttpRequestHandler;
 use crate::data::new_conversation::NewConversation;
 use crate::data::new_conversation_message::NewConversationMessage;
-use crate::data::user_ws_connection::UserWsConnection;
 use crate::data::user_ws_message::UserWsMessage;
 use crate::data::user_ws_request_handler::UserWsRequestHandler;
 use crate::helpers::{conversations_helper, events_helper};
@@ -50,7 +49,7 @@ pub async fn create(r: &mut HttpRequestHandler) -> RequestResult {
     };
 
     // Create the conversation
-    let conv_id = conversations_helper::create(&conv)?;
+    let conv_id = conversations_helper::create(&conv).await?;
     r.set_response(ResCreateConversation::new(conv_id))
 }
 
@@ -147,7 +146,7 @@ pub async fn add_member(r: &mut HttpRequestHandler) -> RequestResult {
         r.bad_request("This user is already a member of this conversation!".to_string())?;
     }
 
-    conversations_helper::add_member(conv.id, &user_to_add, true, false, Some(r.user_id_ref()?))?;
+    conversations_helper::add_member(conv.id, &user_to_add, true, false, Some(r.user_id_ref()?)).await?;
 
     r.success("The user was added to the conversation!")
 }
@@ -195,7 +194,7 @@ pub async fn remove_member(r: &mut HttpRequestHandler) -> RequestResult {
         r.bad_request("This user is not a member of this conversation!".to_string())?;
     }
 
-    conversations_helper::remove_member(&user_to_remove, conv.id, Some(r.user_id_ref()?))?;
+    conversations_helper::remove_member(&user_to_remove, conv.id, Some(r.user_id_ref()?)).await?;
 
     r.ok()
 }
@@ -228,7 +227,7 @@ pub async fn find_private(r: &mut HttpRequestHandler) -> RequestResult {
             group_id: None,
             group_min_membership_level: None,
         };
-        let conv_id = conversations_helper::create(&new_conv)?;
+        let conv_id = conversations_helper::create(&new_conv).await?;
         list.push(conv_id);
     }
 
@@ -255,7 +254,7 @@ pub async fn refresh_single(r: &mut HttpRequestHandler) -> RequestResult {
             conv.conv_id,
             r.user_id_ref()?,
             &messages.last().unwrap(),
-        )?;
+        ).await?;
     }
 
     r.set_response(ConversationMessageAPI::for_list(&messages))
@@ -395,7 +394,7 @@ pub async fn send_message(r: &mut HttpRequestHandler) -> RequestResult {
         message,
         file,
         server_message: None,
-    })?;
+    }).await?;
 
     r.success("Conversation message was successfully sent!")
 }
@@ -423,7 +422,7 @@ pub async fn delete_conversation(r: &mut HttpRequestHandler) -> RequestResult {
         r.bad_request("This conversation is managed, it can not be deleted by this way!".to_string())?;
     }
 
-    conversations_helper::remove_user_from_conversation(&r.user_id()?, &conv, r.user_id_ref()?)?;
+    conversations_helper::remove_user_from_conversation(&r.user_id()?, &conv, r.user_id_ref()?).await?;
 
     r.success("The conversation has been deleted")
 }
@@ -447,7 +446,7 @@ pub async fn update_message(r: &mut HttpRequestHandler) -> RequestResult {
         r.bad_request("New message is too long!".to_string())?;
     }
 
-    conversations_helper::update_message_content(msg_id, &new_content)?;
+    conversations_helper::update_message_content(msg_id, &new_content).await?;
 
     r.success("Conversation message content successfully updated")
 }
@@ -460,25 +459,25 @@ pub async fn delete_message(r: &mut HttpRequestHandler) -> RequestResult {
         r.forbidden("You are not the owner of this message!".to_string())?;
     }
 
-    conversations_helper::delete_message_by_id(msg_id)?;
+    conversations_helper::delete_message_by_id(msg_id).await?;
 
     r.success("The message has been successfully deleted!")
 }
 
 /// A user is writing a message in a conversation
-pub fn member_is_writing(r: &mut UserWsRequestHandler) -> RequestResult {
+pub async fn member_is_writing(r: &mut UserWsRequestHandler) -> RequestResult {
     let conv_id = r.post_registered_conv_id("convID")?;
 
     // Propagate event
     events_helper::propagate_event(
-        &Event::UserIsWritingMessageInConversation(r.user_id_ref()?, conv_id)
-    )?;
+        Event::UserIsWritingMessageInConversation(r.user_id()?, conv_id)
+    ).await?;
 
     r.ok()
 }
 
 /// Events handler
-pub fn handle_event(e: &events_helper::Event) -> Res {
+pub async fn handle_event(e: &events_helper::Event) -> Res {
     match e {
         Event::UpdatedNumberUnreadConversations(users) => {
             for user in users.iter() {
@@ -498,23 +497,22 @@ pub fn handle_event(e: &events_helper::Event) -> Res {
             user_ws_controller::send_message_to_specific_connections(
                 |s| s.conversations.contains(conv_id) && s.user_id() != user_id,
                 |_| UserWsMessage::no_id_message("writing_message_in_conv", UserIsWritingMessageInConversation::new(user_id, *conv_id)),
-                None::<fn(&_) -> _>,
             )?;
         }
 
         Event::NewConversationMessage(msg) => {
-            user_ws_controller::send_message_to_specific_connections(
+            for conn in user_ws_controller::send_message_to_specific_connections(
                 |f| f.conversations.contains(&msg.conv_id),
                 |_| UserWsMessage::no_id_message("new_conv_message", ConversationMessageAPI::new(msg)),
-                Some(|conn: &UserWsConnection| conversations_helper::mark_user_seen(msg.conv_id, conn.user_id(), msg)),
-            )?;
+            )? {
+                conversations_helper::mark_user_seen(msg.conv_id, conn.user_id(), msg).await?;
+            }
         }
 
         Event::UpdatedConversationMessage(msg) => {
             user_ws_controller::send_message_to_specific_connections(
                 |f| f.conversations.contains(&msg.conv_id),
                 |_| UserWsMessage::no_id_message("updated_conv_message", ConversationMessageAPI::new(msg)),
-                None::<fn(&_) -> _>,
             )?;
         }
 
@@ -522,7 +520,6 @@ pub fn handle_event(e: &events_helper::Event) -> Res {
             user_ws_controller::send_message_to_specific_connections(
                 |f| f.conversations.contains(&msg.conv_id),
                 |_| UserWsMessage::no_id_message("deleted_conv_message", ConversationMessageAPI::new(msg)),
-                None::<fn(&_) -> _>,
             )?;
         }
 
@@ -531,7 +528,6 @@ pub fn handle_event(e: &events_helper::Event) -> Res {
             user_ws_controller::send_message_to_specific_connections(
                 |f| f.conversations.contains(conv_id),
                 |_| UserWsMessage::no_id_message("removed_user_from_conv", RemovedUserFromConversationMessage::new(user_id, *conv_id)),
-                None::<fn(&_) -> _>,
             )?;
 
             // Disconnect user from conversation
@@ -551,7 +547,6 @@ pub fn handle_event(e: &events_helper::Event) -> Res {
             user_ws_controller::send_message_to_specific_connections(
                 |f| f.conversations.contains(conv_id),
                 |_| UserWsMessage::no_id_message("deleted_conversation", conv_id.id()),
-                None::<fn(&_) -> _>,
             )?;
 
             // Disconnect user from conversation
diff --git a/src/controllers/friends_controller.rs b/src/controllers/friends_controller.rs
index 2512460..016e1a9 100644
--- a/src/controllers/friends_controller.rs
+++ b/src/controllers/friends_controller.rs
@@ -85,7 +85,7 @@ pub async fn send_request(r: &mut HttpRequestHandler) -> RequestResult {
     notifications_helper::create_friends_notification(
         r.user_id_ref()?,
         &friend_id,
-        NotifEventType::SENT_FRIEND_REQUEST)?;
+        NotifEventType::SENT_FRIEND_REQUEST).await?;
 
     r.success("The friendship request was successfully sent!")
 }
@@ -101,7 +101,7 @@ pub async fn cancel_request(r: &mut HttpRequestHandler) -> RequestResult {
     friends_helper::remove_request(&r.user_id()?, &friend_id)?;
 
     // Delete related notifications
-    notifications_helper::delete_all_related_with_friendship_request(r.user_id_ref()?, &friend_id)?;
+    notifications_helper::delete_all_related_with_friendship_request(r.user_id_ref()?, &friend_id).await?;
 
     r.success("Friendship request removed!")
 }
@@ -125,7 +125,7 @@ pub async fn respond_request(r: &mut HttpRequestHandler) -> RequestResult {
             true => NotifEventType::ACCEPTED_FRIEND_REQUEST,
             false => NotifEventType::REJECTED_FRIEND_REQUEST
         },
-    )?;
+    ).await?;
 
     r.set_response("Response to the friendship request successfully saved!")
 }
@@ -137,7 +137,7 @@ pub async fn remove_friend(r: &mut HttpRequestHandler) -> RequestResult {
     friends_helper::remove_friendship(r.user_id_ref()?, &friend_id)?;
 
     // Delete any related notification
-    notifications_helper::delete_all_related_with_friendship_request(r.user_id_ref()?, &friend_id)?;
+    notifications_helper::delete_all_related_with_friendship_request(r.user_id_ref()?, &friend_id).await?;
 
     r.success("The friend was removed from the list!")
 }
diff --git a/src/controllers/groups_controller.rs b/src/controllers/groups_controller.rs
index 05e0970..f82ad11 100644
--- a/src/controllers/groups_controller.rs
+++ b/src/controllers/groups_controller.rs
@@ -57,7 +57,7 @@ pub async fn create(r: &mut HttpRequestHandler) -> RequestResult {
         owner_id: r.user_id()?,
     };
 
-    let group_id = groups_helper::create(&new_group)?;
+    let group_id = groups_helper::create(&new_group).await?;
 
     r.set_response(GroupCreationResult::new(&group_id))
 }
@@ -187,7 +187,7 @@ pub async fn create_conversation(r: &mut HttpRequestHandler) -> RequestResult {
     let min_membership_level = r.post_group_membership_level_for_conversation("min_membership_level")?;
     let name = r.post_string("name")?;
 
-    let conv_id = conversations_helper::create_conversation_for_group(group, min_membership_level, &name)?;
+    let conv_id = conversations_helper::create_conversation_for_group(group, min_membership_level, &name).await?;
 
     r.set_response(ResCreateConversationForGroup::new(conv_id))
 }
@@ -197,7 +197,7 @@ pub async fn set_conversation_visibility(r: &mut HttpRequestHandler) -> RequestR
     let conv = r.post_group_conv_admin("conv_id")?;
     let min_level = r.post_group_membership_level_for_conversation("min_membership_level")?;
 
-    conversations_helper::set_min_group_conversation_membership_level(conv.id, min_level)?;
+    conversations_helper::set_min_group_conversation_membership_level(conv.id, min_level).await?;
 
     r.ok()
 }
@@ -206,7 +206,7 @@ pub async fn set_conversation_visibility(r: &mut HttpRequestHandler) -> RequestR
 pub async fn delete_conversation(r: &mut HttpRequestHandler) -> RequestResult {
     let conv = r.post_group_conv_admin("conv_id")?;
 
-    conversations_helper::delete_conversation(&conv)?;
+    conversations_helper::delete_conversation(&conv).await?;
 
     r.ok()
 }
@@ -236,10 +236,10 @@ pub async fn cancel_invitation(r: &mut HttpRequestHandler) -> RequestResult {
         r.forbidden("This user has not been invited to join this group!".to_string())?;
     }
 
-    groups_helper::delete_member(&group_id, &user_id)?;
+    groups_helper::delete_member(&group_id, &user_id).await?;
 
     // Delete related notifications
-    notifications_helper::delete_all_related_to_group_membership_notifications(&user_id, &group_id)?;
+    notifications_helper::delete_all_related_to_group_membership_notifications(&user_id, &group_id).await?;
 
     r.success("Membership invitation has been cancelled!")
 }
@@ -253,11 +253,11 @@ pub async fn invite_user(r: &mut HttpRequestHandler) -> RequestResult {
         r.bad_request("The user is not a visitor of the group!".to_string())?;
     }
 
-    groups_helper::send_invitation(&group_id, &user_id)?;
+    groups_helper::send_invitation(&group_id, &user_id).await?;
 
     // Send a notification
     notifications_helper::create_group_membership_notification(
-        &user_id, Some(r.user_id_ref()?), &group_id, NotifEventType::SENT_GROUP_MEMBERSHIP_INVITATION)?;
+        &user_id, Some(r.user_id_ref()?), &group_id, NotifEventType::SENT_GROUP_MEMBERSHIP_INVITATION).await?;
 
     r.success("The user has been successfully invited to join the group!")
 }
@@ -271,7 +271,7 @@ pub async fn respond_invitation(r: &mut HttpRequestHandler) -> RequestResult {
         r.not_found("Invitation not found!".to_string())?
     }
 
-    groups_helper::respond_invitation(&group_id, &r.user_id()?, accept)?;
+    groups_helper::respond_invitation(&group_id, &r.user_id()?, accept).await?;
 
     if accept {
         groups_helper::set_following(&group_id, &r.user_id()?, true)?;
@@ -281,7 +281,7 @@ pub async fn respond_invitation(r: &mut HttpRequestHandler) -> RequestResult {
     notifications_helper::create_group_membership_notification(r.user_id_ref()?, None, &group_id, match accept {
         true => NotifEventType::ACCEPTED_GROUP_MEMBERSHIP_INVITATION,
         false => NotifEventType::REJECTED_GROUP_MEMBERSHIP_INVITATION
-    })?;
+    }).await?;
 
     r.success("Response to the invitation was successfully saved!")
 }
@@ -312,12 +312,12 @@ pub async fn send_request(r: &mut HttpRequestHandler) -> RequestResult {
         time_create: time(),
         level,
         following: true,
-    })?;
+    }).await?;
 
     // Send a notification, if required
     if matches!(group.registration_level, GroupRegistrationLevel::MODERATED_REGISTRATION) {
         notifications_helper::create_group_membership_notification(r.user_id_ref()?, None,
-                                                                   &group_id, NotifEventType::SENT_GROUP_MEMBERSHIP_REQUEST)?;
+                                                                   &group_id, NotifEventType::SENT_GROUP_MEMBERSHIP_REQUEST).await?;
     }
 
 
@@ -332,10 +332,10 @@ pub async fn cancel_request(r: &mut HttpRequestHandler) -> RequestResult {
         r.forbidden("You did not send a membership request to this group!".to_string())?;
     }
 
-    groups_helper::delete_member(&group_id, &r.user_id()?)?;
+    groups_helper::delete_member(&group_id, &r.user_id()?).await?;
 
     // Delete any related notification
-    notifications_helper::delete_all_related_to_group_membership_notifications(r.user_id_ref()?, &group_id)?;
+    notifications_helper::delete_all_related_to_group_membership_notifications(r.user_id_ref()?, &group_id).await?;
 
     r.success("The request has been successfully cancelled!")
 }
@@ -360,10 +360,10 @@ pub async fn delete_member(r: &mut HttpRequestHandler) -> RequestResult {
         r.forbidden("Only administrators can delete this membership!".to_string())?;
     }
 
-    groups_helper::delete_member(&group_id, &user_id)?;
+    groups_helper::delete_member(&group_id, &user_id).await?;
 
     // Delete related notifications
-    notifications_helper::delete_all_related_to_group_membership_notifications(&user_id, &group_id)?;
+    notifications_helper::delete_all_related_to_group_membership_notifications(&user_id, &group_id).await?;
 
     r.success("Membership of the user has been successfully deleted!")
 }
@@ -389,7 +389,7 @@ pub async fn update_membership(r: &mut HttpRequestHandler) -> RequestResult {
         r.forbidden("You can not assign this visibility level!".to_string())?;
     }
 
-    groups_helper::update_membership_level(&group_id, &user_id, new_level)?;
+    groups_helper::update_membership_level(&group_id, &user_id, new_level).await?;
 
     r.success("User membership has been successfully updated!")
 }
@@ -404,13 +404,13 @@ pub async fn respond_request(r: &mut HttpRequestHandler) -> RequestResult {
         r.forbidden("This user has not requested a membership for this group!".to_string())?;
     }
 
-    groups_helper::respond_request(&group_id, &user_id, accept)?;
+    groups_helper::respond_request(&group_id, &user_id, accept).await?;
 
     // Create a notification
     notifications_helper::create_group_membership_notification(&user_id, Some(r.user_id_ref()?), &group_id, match accept {
         true => NotifEventType::ACCEPTED_GROUP_MEMBERSHIP_REQUEST,
         false => NotifEventType::REJECTED_GROUP_MEMBERSHIP_REQUEST
-    })?;
+    }).await?;
 
     r.success("The response to the request has been successfully saved!")
 }
@@ -433,10 +433,10 @@ pub async fn remove_membership(r: &mut HttpRequestHandler) -> RequestResult {
         r.forbidden("You are the last administrator of this group!".to_string())?;
     }
 
-    groups_helper::delete_member(&group_id, &r.user_id()?)?;
+    groups_helper::delete_member(&group_id, &r.user_id()?).await?;
 
     // Delete group membership notifications
-    notifications_helper::delete_all_related_to_group_membership_notifications(r.user_id_ref()?, &group_id)?;
+    notifications_helper::delete_all_related_to_group_membership_notifications(r.user_id_ref()?, &group_id).await?;
 
     r.success("Your membership has been successfully deleted!")
 }
@@ -456,7 +456,7 @@ pub async fn delete_group(r: &mut HttpRequestHandler) -> RequestResult {
     let group_id = r.post_group_id_with_access("groupID", GroupAccessLevel::ADMIN_ACCESS)?;
     r.need_user_password("password")?;
 
-    groups_helper::delete(&group_id)?;
+    groups_helper::delete(&group_id).await?;
 
     r.success("Group deleted.")
 }
\ No newline at end of file
diff --git a/src/controllers/likes_controller.rs b/src/controllers/likes_controller.rs
index 504ef78..9b1cbe5 100644
--- a/src/controllers/likes_controller.rs
+++ b/src/controllers/likes_controller.rs
@@ -2,23 +2,18 @@
 //!
 //! @author Pierre Hubert
 
-use crate::routes::RequestResult;
 use crate::data::base_request_handler::BaseRequestHandler;
 use crate::data::error::ExecError;
 use crate::data::group::GroupAccessLevel;
 use crate::data::post::PostAccessLevel;
 use crate::helpers::{likes_helper, notifications_helper, user_helper};
 use crate::helpers::likes_helper::LikeType;
+use crate::routes::RequestResult;
 
 struct LikeTarget(u64, LikeType);
 
-/// Update like status (async version)
-pub async fn update_async<H: BaseRequestHandler>(r: &mut H) -> RequestResult {
-    update(r)
-}
-
 /// Update like status
-pub fn update<H: BaseRequestHandler>(r: &mut H) -> RequestResult {
+pub async fn update<H: BaseRequestHandler>(r: &mut H) -> RequestResult {
     let req_type = r.post_string("type")?;
     let is_liking = r.post_bool("like")?;
 
@@ -41,7 +36,7 @@ pub fn update<H: BaseRequestHandler>(r: &mut H) -> RequestResult {
             let post = r.post_post_with_access("id", PostAccessLevel::BASIC_ACCESS)?;
 
             // Delete any notification targeting this user about the post
-            notifications_helper::delete_all_post_notifications_targeting_user(r.user_id_ref()?, post.id)?;
+            notifications_helper::delete_all_post_notifications_targeting_user(r.user_id_ref()?, post.id).await?;
 
             LikeTarget(post.id, LikeType::POST)
         }
@@ -51,7 +46,7 @@ pub fn update<H: BaseRequestHandler>(r: &mut H) -> RequestResult {
             let comment = r.post_comment_with_access("id")?;
 
             // Delete any notification targeting this user about the post
-            notifications_helper::delete_all_post_notifications_targeting_user(r.user_id_ref()?, comment.post_id)?;
+            notifications_helper::delete_all_post_notifications_targeting_user(r.user_id_ref()?, comment.post_id).await?;
 
             LikeTarget(comment.id, LikeType::COMMENT)
         }
diff --git a/src/controllers/notifications_controller.rs b/src/controllers/notifications_controller.rs
index 9d483a1..5fb4c9a 100644
--- a/src/controllers/notifications_controller.rs
+++ b/src/controllers/notifications_controller.rs
@@ -73,14 +73,14 @@ pub async fn mark_seen(r: &mut HttpRequestHandler) -> RequestResult {
         notif.from_user_id = None;
     }
 
-    notifications_helper::delete(&notif)?;
+    notifications_helper::delete(&notif).await?;
 
     r.success("Notification deleted")
 }
 
 /// Delete all the notifications of the current user
 pub async fn delete_all(r: &mut HttpRequestHandler) -> RequestResult {
-    notifications_helper::delete_all_user(r.user_id_ref()?)?;
+    notifications_helper::delete_all_user(r.user_id_ref()?).await?;
 
     r.success("Notifications deleted.")
 }
diff --git a/src/controllers/posts_controller.rs b/src/controllers/posts_controller.rs
index c8bc16d..c2a5104 100644
--- a/src/controllers/posts_controller.rs
+++ b/src/controllers/posts_controller.rs
@@ -235,7 +235,7 @@ pub async fn create_post(r: &mut HttpRequestHandler) -> RequestResult {
     }
 
     // Create a notification
-    notifications_helper::create_post_notification(r.user_id_ref()?, post_id, NotifEventType::ELEM_CREATED)?;
+    notifications_helper::create_post_notification(r.user_id_ref()?, post_id, NotifEventType::ELEM_CREATED).await?;
 
     r.set_response(ResCreatePost::new(post_id))
 }
@@ -249,7 +249,7 @@ pub async fn set_visibility_level(r: &mut HttpRequestHandler) -> RequestResult {
 
     // Depending on new level, delete (or not) notifications about the post
     if matches!(new_visibility, PostVisibilityLevel::VISIBILITY_USER) {
-        notifications_helper::delete_all_related_with_post(post.id)?;
+        notifications_helper::delete_all_related_with_post(post.id).await?;
     }
 
     r.success("Visibility level updated")
@@ -263,7 +263,7 @@ pub async fn update_content(r: &mut HttpRequestHandler) -> RequestResult {
     posts_helper::set_content(post.id, &new_content)?;
 
     // Delete the notifications targeting the current user about this post
-    notifications_helper::delete_all_post_notifications_targeting_user(r.user_id_ref()?, post.id)?;
+    notifications_helper::delete_all_post_notifications_targeting_user(r.user_id_ref()?, post.id).await?;
 
     r.success("Content updated")
 }
@@ -272,7 +272,7 @@ pub async fn update_content(r: &mut HttpRequestHandler) -> RequestResult {
 pub async fn delete(r: &mut HttpRequestHandler) -> RequestResult {
     let post = r.post_post_with_access("postID", PostAccessLevel::FULL_ACCESS)?;
 
-    posts_helper::delete(&post)?;
+    posts_helper::delete(&post).await?;
 
     r.success("Post deleted.")
 }
diff --git a/src/controllers/rtc_relay_controller.rs b/src/controllers/rtc_relay_controller.rs
index ebb92ca..50e824a 100644
--- a/src/controllers/rtc_relay_controller.rs
+++ b/src/controllers/rtc_relay_controller.rs
@@ -99,27 +99,36 @@ impl actix::Actor for RtcRelayActor {
         }).unwrap())
     }
 
-    fn stopped(&mut self, _ctx: &mut Self::Context) {
+    fn stopped(&mut self, ctx: &mut Self::Context) {
         println!("Closed connection to RTC relay.");
+        let future = async move {
+            // Propagate information
+            if let Err(e) = events_helper::propagate_event(Event::ClosedRTCRelayWebSocket).await {
+                eprintln!("Failed to propagate rtc closed event! {:#?}", e);
+            }
 
-        // Propagate information
-        if let Err(e) = events_helper::propagate_event(&Event::ClosedRTCRelayWebSocket) {
-            eprintln!("Failed to propagate rtc closed event! {:#?}", e);
-        }
+            eprintln!("Successfully propagated RTC relay stopped envent!");
+        };
+
+        future.into_actor(self).wait(ctx);
     }
 }
 
 impl RtcRelayActor {
-    fn handle_message(&self, txt: &str) {
+    fn handle_message(&self, txt: &str, ctx: &mut <RtcRelayActor as actix::Actor>::Context) {
         match serde_json::from_str::<RTCSocketMessage>(&txt) {
             Err(e) => {
                 eprintln!("Failed to parse a message from RTC proxy! {:#?}", e);
             }
 
             Ok(msg) => {
-                if let Err(e) = process_message_from_relay(&msg) {
-                    eprintln!("Failed to process signal from RTC Relay! {:#?}", e);
-                }
+                let future = async move {
+                    if let Err(e) = process_message_from_relay(&msg).await {
+                        eprintln!("Failed to process signal from RTC Relay! {:#?}", e);
+                    }
+                };
+
+                future.into_actor(self).spawn(ctx);
             }
         }
     }
@@ -142,7 +151,7 @@ impl StreamHandler<Result<actix_web_actors::ws::Message, actix_web_actors::ws::P
         // Handle messages
         match msg {
             Message::Text(txt) => {
-                self.handle_message(&txt);
+                self.handle_message(&txt, ctx);
             }
             Message::Binary(_) => {
                 eprintln!("RTC WS Message::Binary");
@@ -164,7 +173,7 @@ impl StreamHandler<Result<actix_web_actors::ws::Message, actix_web_actors::ws::P
                     }
                     Item::Last(c) => {
                         self.recv_buff.extend_from_slice(c.as_ref());
-                        self.handle_message(&String::from_utf8_lossy(&self.recv_buff))
+                        self.handle_message(&String::from_utf8_lossy(&self.recv_buff), ctx)
                     }
                 }
             }
@@ -182,15 +191,15 @@ impl StreamHandler<Result<actix_web_actors::ws::Message, actix_web_actors::ws::P
 }
 
 /// Process a message from the server
-fn process_message_from_relay(msg: &RTCSocketMessage) -> Res {
+async fn process_message_from_relay(msg: &RTCSocketMessage) -> Res {
     match msg.title.as_str() {
         "signal" => {
-            events_helper::propagate_event(&Event::NewRTCRelayMessage(&NewRtcRelayMessage {
+            events_helper::propagate_event(Event::NewRTCRelayMessage(NewRtcRelayMessage {
                 call_hash: msg.callHash.clone().unwrap_or(String::new()),
                 peer_id: msg.peerId.clone().unwrap_or("0".to_string()),
                 data: serde_json::to_string(msg.data.as_ref().unwrap_or(&Value::Null))
                     .unwrap_or("failed to serialize signal data".to_string()),
-            }))?;
+            })).await?;
         }
 
         title => {
diff --git a/src/controllers/user_ws_controller.rs b/src/controllers/user_ws_controller.rs
index 18ee901..cb9142f 100644
--- a/src/controllers/user_ws_controller.rs
+++ b/src/controllers/user_ws_controller.rs
@@ -317,9 +317,16 @@ impl Actor for WsSession {
     fn stopping(&mut self, ctx: &mut Self::Context) -> Running {
         // Send an event (user_ws_closed)
         if let Some(conn) = find_connection(ctx.address()) {
-            if let Err(e) = events_helper::propagate_event(&Event::UserWsClosed(&conn)) {
-                eprintln!("Failed to propagate web socket closed event ! {:#?}", e);
-            }
+            let future = async move {
+                if let Err(e) = events_helper::propagate_event(Event::UserWsClosed(conn)).await {
+                    eprintln!("Failed to propagate web socket closed event ! {:#?}", e);
+                }
+
+                // TODO : remove
+                eprintln!("Successfully propagated user ws stopping event!");
+            };
+
+            future.into_actor(self).wait(ctx);
         }
 
         remove_connection(ctx.address());
@@ -495,10 +502,9 @@ pub fn send_to_client(conn: &UserWsConnection, msg: &UserWsMessage) -> Res {
 }
 
 /// Send a message to specific users
-pub fn send_message_to_specific_connections<F, M, A>(filter: F, msg_generator: M, after_send: Option<A>) -> Res
+pub fn send_message_to_specific_connections<F, M>(filter: F, msg_generator: M) -> Res<Vec<UserWsConnection>>
     where F: Fn(&UserWsConnection) -> bool,
-          M: Fn(&UserWsConnection) -> Res<UserWsMessage>,
-          A: Fn(&UserWsConnection) -> Res
+          M: Fn(&UserWsConnection) -> Res<UserWsMessage>
 {
     let connections = get_ws_connections_list()
         .lock()
@@ -508,15 +514,11 @@ pub fn send_message_to_specific_connections<F, M, A>(filter: F, msg_generator: M
         .map(|f| f.clone())
         .collect::<Vec<UserWsConnection>>();
 
-    for con in connections {
+    for con in &connections {
         send_message(con.session.clone(), &msg_generator(&con)?)?;
-
-        if let Some(cb) = &after_send {
-            cb(&con)?;
-        }
     }
 
-    Ok(())
+    Ok(connections)
 }
 
 /// Check out whether user is connected or not
@@ -576,6 +578,11 @@ pub fn foreach_connection<F>(mut f: F) -> Res
     Ok(())
 }
 
+/// Get a copy of the entire list of connections
+pub fn get_all_connections() -> Res<Vec<UserWsConnection>> {
+    Ok(get_ws_connections_list().lock().unwrap().clone())
+}
+
 /// Events handler
 pub fn handle_event(e: &events_helper::Event) -> Res {
     match e {
diff --git a/src/data/comment.rs b/src/data/comment.rs
index 2149ee1..6445d9b 100644
--- a/src/data/comment.rs
+++ b/src/data/comment.rs
@@ -4,6 +4,7 @@
 
 use crate::data::user::UserID;
 
+#[derive(Debug, Clone)]
 pub struct Comment {
     pub id: u64,
     pub time_sent: u64,
diff --git a/src/helpers/account_helper.rs b/src/helpers/account_helper.rs
index 2c20c1f..615e519 100644
--- a/src/helpers/account_helper.rs
+++ b/src/helpers/account_helper.rs
@@ -100,7 +100,7 @@ pub fn refresh_access_token(token: &UserAccessToken) -> Res {
 }
 
 /// Destroy a given user login tokens
-pub fn destroy_login_tokens(access_tokens: &UserAccessToken) -> Res {
+pub async fn destroy_login_tokens(access_tokens: &UserAccessToken) -> Res {
     // Un-register from independent push notifications service
     //    (continue to destroy token even in case of failure)
     push_notifications_helper::un_register_from_previous_service(access_tokens)?;
@@ -110,20 +110,20 @@ pub fn destroy_login_tokens(access_tokens: &UserAccessToken) -> Res {
         .exec()?;
 
     // Send an event (destroyed_login_tokens)
-    events_helper::propagate_event(&Event::DestroyedLoginToken(access_tokens))?;
+    events_helper::propagate_event(Event::DestroyedLoginToken(access_tokens.clone())).await?;
 
     Ok(())
 }
 
 /// Clean up old access tokens
-pub fn clean_up_old_access_tokens() -> Res {
+pub async fn clean_up_old_access_tokens() -> Res {
     let to_delete = QueryInfo::new(USER_ACCESS_TOKENS_TABLE)
         .set_custom_where("last_refresh + timeout < ?")
         .add_custom_where_argument_u64(time())
         .exec(db_to_user_access_token)?;
 
     for token in to_delete {
-        destroy_login_tokens(&token)?;
+        destroy_login_tokens(&token).await?;
     }
 
     Ok(())
@@ -137,11 +137,11 @@ pub fn get_all_login_tokens(id: &UserID) -> Res<Vec<UserAccessToken>> {
 }
 
 /// Destroy all login tokens of a user
-pub fn destroy_all_user_tokens(id: &UserID) -> ResultBoxError {
+pub async fn destroy_all_user_tokens(id: &UserID) -> ResultBoxError {
     user_ws_controller::disconnect_user_from_all_sockets(id)?;
 
     for token in get_all_login_tokens(id)? {
-        destroy_login_tokens(&token)?;
+        destroy_login_tokens(&token).await?;
     }
 
     Ok(())
@@ -365,18 +365,18 @@ pub fn export(user_id: &UserID) -> ResultBoxError<AccountExport> {
 }
 
 /// Delete a user's account
-pub fn delete(user_id: &UserID) -> ResultBoxError {
+pub async fn delete(user_id: &UserID) -> ResultBoxError {
     // Close all WebSockets of user
-    destroy_all_user_tokens(user_id)?;
+    destroy_all_user_tokens(user_id).await?;
 
     // Delete all group membership
-    groups_helper::delete_all_user_groups(user_id)?;
+    groups_helper::delete_all_user_groups(user_id).await?;
 
     // Delete all user comments
-    comments_helper::delete_all_user(user_id)?;
+    comments_helper::delete_all_user(user_id).await?;
 
     // Delete all user posts
-    posts_helper::delete_all_user(user_id)?;
+    posts_helper::delete_all_user(user_id).await?;
 
     // Delete all responses of user to surveys
     survey_helper::delete_all_user_responses(user_id)?;
@@ -385,13 +385,13 @@ pub fn delete(user_id: &UserID) -> ResultBoxError {
     likes_helper::delete_all_user(user_id)?;
 
     // Delete all conversation messages
-    conversations_helper::delete_all_user_messages(user_id)?;
+    conversations_helper::delete_all_user_messages(user_id).await?;
 
     // Remove the user from all its conversations
-    conversations_helper::delete_all_user_conversations(user_id)?;
+    conversations_helper::delete_all_user_conversations(user_id).await?;
 
     // Delete all the notifications related with the user
-    notifications_helper::delete_all_related_with_user(user_id)?;
+    notifications_helper::delete_all_related_with_user(user_id).await?;
 
     // Delete all user friends, including friendship requests
     friends_helper::delete_all_user(user_id)?;
@@ -409,7 +409,7 @@ pub fn delete(user_id: &UserID) -> ResultBoxError {
     forez_presence_helper::delete_all_user(user_id)?;
 
     // Delete connections to all services
-    destroy_all_user_tokens(user_id)?;
+    destroy_all_user_tokens(user_id).await?;
 
     // Remove the user from the database
     database::DeleteQuery::new(USERS_TABLE)
@@ -420,7 +420,7 @@ pub fn delete(user_id: &UserID) -> ResultBoxError {
 }
 
 /// Automatically delete the account, if it have been inactive for a too long time
-pub fn remove_if_inactive_for_too_long_time(user: &User) -> Res {
+pub async fn remove_if_inactive_for_too_long_time(user: &User) -> Res {
     let timeout = user.delete_account_after.unwrap_or(0);
 
     if timeout < 1 {
@@ -428,7 +428,7 @@ pub fn remove_if_inactive_for_too_long_time(user: &User) -> Res {
     }
 
     if user.last_activity < time() - timeout {
-        delete(&user.id)?;
+        delete(&user.id).await?;
     }
 
     Ok(())
diff --git a/src/helpers/comments_helper.rs b/src/helpers/comments_helper.rs
index 6eb336b..450124c 100644
--- a/src/helpers/comments_helper.rs
+++ b/src/helpers/comments_helper.rs
@@ -13,7 +13,7 @@ use crate::utils::date_utils::{mysql_date, time};
 use crate::utils::user_data_utils::user_data_path;
 
 /// Create a new comment. In case of success, this function returns the ID of the created comment
-pub fn create(c: &Comment) -> ResultBoxError<u64> {
+pub async fn create(c: &Comment) -> ResultBoxError<u64> {
     let comment_id = database::InsertQuery::new(COMMENTS_TABLE)
         .add_u64("ID_texte", c.post_id)
         .add_user_id("ID_personne", &c.user_id)
@@ -25,7 +25,7 @@ pub fn create(c: &Comment) -> ResultBoxError<u64> {
         .ok_or(ExecError::new("No ID returned after comment creation!"))?;
 
     // Emit an event
-    events_helper::propagate_event(&Event::NewComment(&get_single(comment_id)?))?;
+    events_helper::propagate_event(Event::NewComment(get_single(comment_id)?)).await?;
 
     Ok(comment_id)
 }
@@ -67,20 +67,20 @@ fn db_to_comment(row: &database::RowResult) -> ResultBoxError<Comment> {
 }
 
 /// Update comment content
-pub fn edit(comment_id: u64, new_content: &str) -> ResultBoxError {
+pub async fn edit(comment_id: u64, new_content: &str) -> ResultBoxError {
     database::UpdateInfo::new(COMMENTS_TABLE)
         .cond_u64("ID", comment_id)
         .set_str("commentaire", new_content)
         .exec()?;
 
     // Emit an event
-    events_helper::propagate_event(&Event::UpdatedComment(&get_single(comment_id)?))?;
+    events_helper::propagate_event(Event::UpdatedComment(get_single(comment_id)?)).await?;
 
     Ok(())
 }
 
 /// Delete a single comment
-pub fn delete(c: &Comment) -> ResultBoxError {
+pub async fn delete(c: &Comment) -> ResultBoxError {
     // Delete associated image (if any)
     if let Some(image) = &c.image_path {
         let path = user_data_path(image.as_ref());
@@ -98,31 +98,32 @@ pub fn delete(c: &Comment) -> ResultBoxError {
         .exec()?;
 
     // Emit an event
-    events_helper::propagate_event(&Event::DeletedComment(c))?;
+    let c = (*c).clone();
+    events_helper::propagate_event(Event::DeletedComment(c)).await?;
 
     Ok(())
 }
 
 /// Delete all the comments associated to a post
-pub fn delete_all(post_id: u64) -> ResultBoxError {
+pub async fn delete_all(post_id: u64) -> ResultBoxError {
     for c in &get(post_id)? {
-        delete(c)?;
+        delete(c).await?;
     }
 
     Ok(())
 }
 
 /// Delete all the comments created by a user
-pub fn delete_all_user(user_id: &UserID) -> ResultBoxError {
+pub async fn delete_all_user(user_id: &UserID) -> ResultBoxError {
     for comment in &export_all_user(user_id)? {
-        delete(comment)?;
+        delete(comment).await?;
     }
 
     Ok(())
 }
 
 /// Clean old user comments
-pub fn clean_old_comments(user: &User) -> Res {
+pub async fn clean_old_comments(user: &User) -> Res {
     let lifetime = user.delete_comments_after.unwrap_or(0);
     if lifetime < 1 {
         return Ok(());
@@ -135,7 +136,7 @@ pub fn clean_old_comments(user: &User) -> Res {
         .exec(db_to_comment)?;
 
     for comment in comments {
-        delete(&comment)?;
+        delete(&comment).await?;
     }
 
     Ok(())
diff --git a/src/helpers/conversations_helper.rs b/src/helpers/conversations_helper.rs
index 8de301d..f72739a 100644
--- a/src/helpers/conversations_helper.rs
+++ b/src/helpers/conversations_helper.rs
@@ -18,7 +18,7 @@ use crate::utils::date_utils::time;
 use crate::utils::user_data_utils::delete_user_data_file_if_exists;
 
 /// Create a new conversation. This method returns the ID of the created conversation
-pub fn create(conv: &NewConversation) -> Res<ConvID> {
+pub async fn create(conv: &NewConversation) -> Res<ConvID> {
     // Create the conversation in the main table
     let conv_id = InsertQuery::new(CONV_LIST_TABLE)
         .add_str("name", conv.name.clone().unwrap_or(String::new()).as_str())
@@ -36,15 +36,16 @@ pub fn create(conv: &NewConversation) -> Res<ConvID> {
 
     // Initialize the list of members of the group
     if conv.group_id.is_some() {
-        update_members_list_for_group_conversation(conv_id)?;
+        update_members_list_for_group_conversation(conv_id).await?;
     } else {
         // Add the creator of the conversation
-        add_member(conv_id, &conv.owner_id, conv.owner_following, true, Some(&conv.owner_id))?;
+        add_member(conv_id, &conv.owner_id, conv.owner_following, true, Some(&conv.owner_id)).await?;
 
         // Add other members to the conversation
         for member in &conv.members {
             if !member.eq(&conv.owner_id) {
-                add_member(conv_id, member, true, false, Some(&conv.owner_id))?;
+                add_member(conv_id, member, true, false,
+                           Some(&conv.owner_id)).await?;
             }
         }
     }
@@ -53,7 +54,7 @@ pub fn create(conv: &NewConversation) -> Res<ConvID> {
 }
 
 /// Create a conversation for a group
-pub fn create_conversation_for_group(group_id: GroupID, min_membership_level: GroupMembershipLevel, name: &String) -> Res<ConvID> {
+pub async fn create_conversation_for_group(group_id: GroupID, min_membership_level: GroupMembershipLevel, name: &String) -> Res<ConvID> {
     create(&NewConversation {
         owner_id: UserID::invalid(),
         name: Some(name.to_string()),
@@ -64,11 +65,11 @@ pub fn create_conversation_for_group(group_id: GroupID, min_membership_level: Gr
         owner_following: false,
         members: Default::default(),
         can_everyone_add_members: false,
-    })
+    }).await
 }
 
 /// Add a member to a conversation
-pub fn add_member(conv_id: ConvID, user_id: &UserID, following: bool, admin: bool, adder: Option<&UserID>) -> Res {
+pub async fn add_member(conv_id: ConvID, user_id: &UserID, following: bool, admin: bool, adder: Option<&UserID>) -> Res {
     InsertQuery::new(CONV_MEMBERS_TABLE)
         .add_conv_id("conv_id", conv_id)
         .add_user_id("user_id", user_id)
@@ -91,11 +92,11 @@ pub fn add_member(conv_id: ConvID, user_id: &UserID, following: bool, admin: boo
                         user_added: user_id.clone(),
                     }),
                 )
-            )?;
+            ).await?;
         } else {
             send_message(&NewConversationMessage::new_server_message(
                 conv_id, ConversationServerMessageType::UserCreatedConversation(user_id.clone()),
-            ))?;
+            )).await?;
         }
     }
 
@@ -191,13 +192,13 @@ pub fn set_settings(settings: NewConversationSettings) -> Res {
 }
 
 /// Change minimal membership level to join a group conversation
-pub fn set_min_group_conversation_membership_level(conv_id: ConvID, level: GroupMembershipLevel) -> Res {
+pub async fn set_min_group_conversation_membership_level(conv_id: ConvID, level: GroupMembershipLevel) -> Res {
     database::UpdateInfo::new(CONV_LIST_TABLE)
         .cond_conv_id("id", conv_id)
         .set_u32("min_group_membership_level", level.to_db())
         .exec()?;
 
-    update_members_list_for_group_conversation(conv_id)
+    update_members_list_for_group_conversation(conv_id).await
 }
 
 /// Search for private conversation between two users
@@ -274,7 +275,7 @@ pub fn export_all_user_messages(user_id: &UserID) -> ResultBoxError<Vec<Conversa
 }
 
 /// Clean old user conversation messages
-pub fn clean_old_messages(user: &User) -> Res {
+pub async fn clean_old_messages(user: &User) -> Res {
     let lifetime = user.delete_conversation_messages_after.unwrap_or(0);
     if lifetime < 1 {
         return Ok(());
@@ -287,16 +288,16 @@ pub fn clean_old_messages(user: &User) -> Res {
         .exec(db_to_conversation_message)?;
 
     for message in messages {
-        delete_message(&message)?;
+        delete_message(&message).await?;
     }
 
     Ok(())
 }
 
 /// Delete all the messages of a given user
-pub fn delete_all_user_messages(user_id: &UserID) -> ResultBoxError {
+pub async fn delete_all_user_messages(user_id: &UserID) -> ResultBoxError {
     for msg in &export_all_user_messages(user_id)? {
-        delete_message(msg)?;
+        delete_message(msg).await?;
     }
 
     // Remove all server messages related with the user
@@ -312,9 +313,9 @@ pub fn delete_all_user_messages(user_id: &UserID) -> ResultBoxError {
 }
 
 /// Remove the user from all the conversations he belongs to
-pub fn delete_all_user_conversations(user_id: &UserID) -> ResultBoxError {
+pub async fn delete_all_user_conversations(user_id: &UserID) -> ResultBoxError {
     for conversation in &get_list_user(user_id)? {
-        remove_user_from_conversation(user_id, conversation, user_id)?;
+        remove_user_from_conversation(user_id, conversation, user_id).await?;
     }
 
     Ok(())
@@ -335,7 +336,7 @@ pub fn get_single_message(msg_id: u64) -> ResultBoxError<ConversationMessage> {
 }
 
 /// Send a new conversation message
-pub fn send_message(msg: &NewConversationMessage) -> ResultBoxError<()> {
+pub async fn send_message(msg: &NewConversationMessage) -> ResultBoxError<()> {
     let t = time();
 
     // Insert the message in the database
@@ -378,33 +379,33 @@ pub fn send_message(msg: &NewConversationMessage) -> ResultBoxError<()> {
 
     // Mark the user has seen his message
     if let Some(user_id) = &msg.user_id {
-        mark_user_seen(msg.conv_id, user_id, &new_message)?;
+        mark_user_seen(msg.conv_id, user_id, &new_message).await?;
     }
 
     // Send an event (updated_number_unread_conversations)
-    events_helper::propagate_event(&Event::UpdatedNumberUnreadConversations(&list_to_notify))?;
+    events_helper::propagate_event(Event::UpdatedNumberUnreadConversations(list_to_notify)).await?;
 
     // Send an event (sent_conversation_message)
-    events_helper::propagate_event(&Event::NewConversationMessage(&new_message))?;
+    events_helper::propagate_event(Event::NewConversationMessage(new_message)).await?;
 
     Ok(())
 }
 
 /// Update message content
-pub fn update_message_content(msg_id: u64, new_content: &str) -> ResultBoxError<()> {
+pub async fn update_message_content(msg_id: u64, new_content: &str) -> ResultBoxError<()> {
     database::UpdateInfo::new(CONV_MESSAGES_TABLE)
         .cond_u64("id", msg_id)
         .set_str("message", new_content)
         .exec()?;
 
     // Send an event (conv_message_updated)
-    events_helper::propagate_event(&Event::UpdatedConversationMessage(&get_single_message(msg_id)?))?;
+    events_helper::propagate_event(Event::UpdatedConversationMessage(get_single_message(msg_id)?)).await?;
 
     Ok(())
 }
 
 /// Remove a message from a conversation
-pub fn delete_message(msg: &ConversationMessage) -> ResultBoxError<()> {
+pub async fn delete_message(msg: &ConversationMessage) -> ResultBoxError<()> {
 
     // Delete associated files
     if let Some(file) = &msg.file {
@@ -420,14 +421,14 @@ pub fn delete_message(msg: &ConversationMessage) -> ResultBoxError<()> {
         .exec()?;
 
     // Send en event (conv_message_deleted)
-    events_helper::propagate_event(&Event::DeleteConversationMessage(msg))?;
+    events_helper::propagate_event(Event::DeleteConversationMessage(msg.clone())).await?;
 
     Ok(())
 }
 
 /// Delete a message with a specific ID
-pub fn delete_message_by_id(id: u64) -> ResultBoxError<()> {
-    delete_message(&get_single_message(id)?)
+pub async fn delete_message_by_id(id: u64) -> ResultBoxError<()> {
+    delete_message(&get_single_message(id)?).await
 }
 
 /// Count the number of unread conversation for a specified user
@@ -453,7 +454,7 @@ pub fn get_list_unread(user_id: &UserID) -> ResultBoxError<Vec<ConvID>> {
 }
 
 /// Indicate that a user has seen the last messages of a conversation
-pub fn mark_user_seen(conv_id: ConvID, user_id: &UserID, last_msg: &ConversationMessage) -> ResultBoxError<()> {
+pub async fn mark_user_seen(conv_id: ConvID, user_id: &UserID, last_msg: &ConversationMessage) -> Res {
     database::UpdateInfo::new(CONV_MEMBERS_TABLE)
         .cond_conv_id("conv_id", conv_id)
         .cond_user_id("user_id", user_id)
@@ -462,34 +463,34 @@ pub fn mark_user_seen(conv_id: ConvID, user_id: &UserID, last_msg: &Conversation
         .exec()?;
 
     // Push an event
-    events_helper::propagate_event(&Event::SeenLastConversationMessage(user_id, conv_id))?;
+    events_helper::propagate_event(Event::SeenLastConversationMessage(user_id.clone(), conv_id)).await?;
 
     // Push an event (updated_number_unread_conversations)
-    events_helper::propagate_event(&Event::UpdatedNumberUnreadConversations(&vec![user_id.clone()]))?;
+    events_helper::propagate_event(Event::UpdatedNumberUnreadConversations(vec![user_id.clone()])).await?;
 
     Ok(())
 }
 
 /// Remove a user from a conversation
-pub fn remove_user_from_conversation(user_id: &UserID, conv: &Conversation, remover: &UserID) -> ResultBoxError<()> {
+pub async fn remove_user_from_conversation(user_id: &UserID, conv: &Conversation, remover: &UserID) -> ResultBoxError<()> {
     if conv.is_last_admin(user_id) {
-        delete_conversation(conv)
+        delete_conversation(conv).await
     } else {
-        remove_member(user_id, conv.id, Some(remover))
+        remove_member(user_id, conv.id, Some(remover)).await
     }
 }
 
 /// Update members list for all the conversations of a given group
-pub fn update_members_list_for_group_conversations(group_id: &GroupID) -> Res {
+pub async fn update_members_list_for_group_conversations(group_id: &GroupID) -> Res {
     for conv in get_list_group(group_id)? {
-        update_members_list_for_group_conversation(conv.id)?;
+        update_members_list_for_group_conversation(conv.id).await?;
     }
 
     Ok(())
 }
 
 /// Update the list of members for a group conversation
-pub fn update_members_list_for_group_conversation(conv_id: ConvID) -> Res {
+pub async fn update_members_list_for_group_conversation(conv_id: ConvID) -> Res {
     let conv = get_single(conv_id)?;
 
     if !conv.is_linked_to_group() {
@@ -511,7 +512,7 @@ pub fn update_members_list_for_group_conversation(conv_id: ConvID) -> Res {
 
         // Create the member
         else if conv.min_group_membership_level.as_ref().unwrap() >= &member.level {
-            add_member(conv_id, &member.user_id, true, member.is_admin(), None)?;
+            add_member(conv_id, &member.user_id, true, member.is_admin(), None).await?;
         }
     }
 
@@ -521,7 +522,7 @@ pub fn update_members_list_for_group_conversation(conv_id: ConvID) -> Res {
 
         // Remove the member, if required
         if member.is_none() || conv.min_group_membership_level.as_ref().unwrap() < &member.unwrap().level {
-            remove_member(&conv_member.user_id, conv_id, None)?;
+            remove_member(&conv_member.user_id, conv_id, None).await?;
         }
     }
 
@@ -529,10 +530,10 @@ pub fn update_members_list_for_group_conversation(conv_id: ConvID) -> Res {
 }
 
 /// Remove permanently a conversation
-pub fn delete_conversation(conv: &Conversation) -> ResultBoxError<()> {
+pub async fn delete_conversation(conv: &Conversation) -> ResultBoxError<()> {
     // Delete all the messages of the conversations
     for message in get_all_messages(conv.id)? {
-        delete_message(&message)?;
+        delete_message(&message).await?;
     }
 
     // Delete all the members of the conversation
@@ -551,24 +552,24 @@ pub fn delete_conversation(conv: &Conversation) -> ResultBoxError<()> {
         .exec()?;
 
     // Propagate information
-    events_helper::propagate_event(&Event::DeletedConversation(conv.id))?;
+    events_helper::propagate_event(Event::DeletedConversation(conv.id)).await?;
 
     Ok(())
 }
 
 /// Delete all the conversations of a group
-pub fn delete_all_group_conversations(group_id: &GroupID) -> Res {
+pub async fn delete_all_group_conversations(group_id: &GroupID) -> Res {
     for conv in get_list_group(group_id)? {
-        delete_conversation(&conv)?;
+        delete_conversation(&conv).await?;
     }
 
     Ok(())
 }
 
 /// Delete a conversation membership
-pub fn remove_member(user_id: &UserID, conv_id: ConvID, remover: Option<&UserID>) -> ResultBoxError<()> {
+pub async fn remove_member(user_id: &UserID, conv_id: ConvID, remover: Option<&UserID>) -> ResultBoxError<()> {
     for msg in get_user_messages_for_conversations(conv_id, user_id)? {
-        delete_message(&msg)?;
+        delete_message(&msg).await?;
     }
 
     // Delete membership
@@ -583,7 +584,7 @@ pub fn remove_member(user_id: &UserID, conv_id: ConvID, remover: Option<&UserID>
             send_message(&NewConversationMessage::new_server_message(
                 conv_id,
                 ConversationServerMessageType::UserLeftConversation(user_id.clone()),
-            ))?;
+            )).await?;
         } else {
             send_message(&NewConversationMessage::new_server_message(
                 conv_id,
@@ -591,12 +592,12 @@ pub fn remove_member(user_id: &UserID, conv_id: ConvID, remover: Option<&UserID>
                     user_who_removed: remover.clone(),
                     user_removed: user_id.clone(),
                 }),
-            ))?;
+            )).await?;
         }
     }
 
     // Propagate event
-    events_helper::propagate_event(&Event::RemovedUserFromConversation(user_id, conv_id))?;
+    events_helper::propagate_event(Event::RemovedUserFromConversation(user_id.clone(), conv_id)).await?;
 
     Ok(())
 }
diff --git a/src/helpers/events_helper.rs b/src/helpers/events_helper.rs
index dabfc53..393217f 100644
--- a/src/helpers/events_helper.rs
+++ b/src/helpers/events_helper.rs
@@ -2,7 +2,7 @@
 //!
 //! @author Pierre Hubert
 
-
+use async_recursion::async_recursion;
 
 use crate::controllers::{calls_controller, comments_controller, conversations_controller, notifications_controller, rtc_relay_controller, user_ws_controller};
 use crate::data::call_signal::{CloseCallStream, NewRtcRelayMessage, NewUserCallSignal, UserCallOfferRequest};
@@ -15,84 +15,85 @@ use crate::data::user_token::UserAccessToken;
 use crate::data::user_ws_connection::UserWsConnection;
 use crate::helpers::push_notifications_helper;
 
-pub enum Event<'a> {
+pub enum Event {
     /// Websocket of a user was closed
     ///
     /// This event is propagated BEFORE the removal of the connection from the list
-    UserWsClosed(&'a UserWsConnection),
+    UserWsClosed(UserWsConnection),
 
     /// Destroyed a login token
-    DestroyedLoginToken(&'a UserAccessToken),
+    DestroyedLoginToken(UserAccessToken),
 
     /// Updated the number of notifications of one of multiple users user
-    UpdatedNotificationsNumber(&'a Vec<UserID>),
+    UpdatedNotificationsNumber(Vec<UserID>),
 
     /// Indicate that a user has seen the last message of a conversation
-    SeenLastConversationMessage(&'a UserID, ConvID),
+    SeenLastConversationMessage(UserID, ConvID),
 
     /// Updated the number of unread conversations
-    UpdatedNumberUnreadConversations(&'a Vec<UserID>),
+    UpdatedNumberUnreadConversations(Vec<UserID>),
 
     /// Created a new conversation message
-    NewConversationMessage(&'a ConversationMessage),
+    NewConversationMessage(ConversationMessage),
 
     /// Updated conversation message
-    UpdatedConversationMessage(&'a ConversationMessage),
+    UpdatedConversationMessage(ConversationMessage),
 
     /// Deleted a conversation message
-    DeleteConversationMessage(&'a ConversationMessage),
+    DeleteConversationMessage(ConversationMessage),
 
     /// User is writing a message in a conversation
-    UserIsWritingMessageInConversation(&'a UserID, ConvID),
+    UserIsWritingMessageInConversation(UserID, ConvID),
 
     /// Removed a user from a conversation
-    RemovedUserFromConversation(&'a UserID, ConvID),
+    RemovedUserFromConversation(UserID, ConvID),
 
     /// Delete a conversation
     DeletedConversation(ConvID),
 
     /// Created a new comment
-    NewComment(&'a Comment),
+    NewComment(Comment),
 
     /// Updated a comment
-    UpdatedComment(&'a Comment),
+    UpdatedComment(Comment),
 
     /// Deleted a comment
-    DeletedComment(&'a Comment),
+    DeletedComment(Comment),
 
     /// Connection to RTC relay was closed
     ClosedRTCRelayWebSocket,
 
     /// User joined call
-    UserJoinedCall(&'a ConvID, &'a UserID),
+    UserJoinedCall(ConvID, UserID),
 
     /// User left call
-    UserLeftCall(&'a ConvID, &'a UserID),
+    UserLeftCall(ConvID, UserID),
 
     /// Got a new user call signal
-    NewUserCallSignal(&'a NewUserCallSignal),
+    NewUserCallSignal(NewUserCallSignal),
 
     /// Got a new RTC relay message
-    NewRTCRelayMessage(&'a NewRtcRelayMessage),
+    NewRTCRelayMessage(NewRtcRelayMessage),
 
     /// User requested an offer for a call
-    UserRequestedCallOffer(&'a UserCallOfferRequest),
+    UserRequestedCallOffer(UserCallOfferRequest),
 
     /// Close call stream
-    CloseCallStream(&'a CloseCallStream),
+    CloseCallStream(CloseCallStream),
 
     /// No event
     None,
 }
 
 /// Propagate an event through the different components of the application
-pub fn propagate_event(e: &Event) -> Res {
-    conversations_controller::handle_event(e)?;
-    comments_controller::handle_event(e)?;
-    notifications_controller::handle_event(e)?;
-    user_ws_controller::handle_event(e)?;
-    calls_controller::handle_event(e)?;
-    rtc_relay_controller::handle_event(e)?;
-    push_notifications_helper::handle_event(e)?;
+#[async_recursion(?Send)]
+pub async fn propagate_event(e: Event) -> Res {
+    conversations_controller::handle_event(&e).await?;
+    comments_controller::handle_event(&e).await?;
+    notifications_controller::handle_event(&e)?;
+    user_ws_controller::handle_event(&e)?;
+    calls_controller::handle_event(&e).await?;
+    rtc_relay_controller::handle_event(&e)?;
+    push_notifications_helper::handle_event(&e)?;
     Ok(())
 }
\ No newline at end of file
diff --git a/src/helpers/groups_helper.rs b/src/helpers/groups_helper.rs
index 942c0be..f020f62 100644
--- a/src/helpers/groups_helper.rs
+++ b/src/helpers/groups_helper.rs
@@ -94,7 +94,7 @@ impl GroupPostsCreationLevel {
 }
 
 /// Create a new group. Returns the ID of the new group
-pub fn create(group: &NewGroup) -> ResultBoxError<GroupID> {
+pub async fn create(group: &NewGroup) -> ResultBoxError<GroupID> {
     // First, create the group
     let group_id = database::InsertQuery::new(GROUPS_LIST_TABLE)
         .add_u64("time_create", time())
@@ -111,13 +111,13 @@ pub fn create(group: &NewGroup) -> ResultBoxError<GroupID> {
         time_create: time(),
         level: GroupMembershipLevel::ADMINISTRATOR,
         following: true,
-    })?;
+    }).await?;
 
     Ok(group_id)
 }
 
 /// Insert a new group into the database
-pub fn insert_member(m: &GroupMember) -> ResultBoxError<()> {
+pub async fn insert_member(m: &GroupMember) -> ResultBoxError<()> {
     database::InsertQuery::new(GROUPS_MEMBERS_TABLE)
         .add_group_id("groups_id", &m.group_id)
         .add_user_id("user_id", &m.user_id)
@@ -126,27 +126,27 @@ pub fn insert_member(m: &GroupMember) -> ResultBoxError<()> {
         .insert_drop_result()?;
 
     if m.level.is_at_least_member() {
-        conversations_helper::update_members_list_for_group_conversations(&m.group_id)?;
+        conversations_helper::update_members_list_for_group_conversations(&m.group_id).await?;
     }
 
     Ok(())
 }
 
 /// Remove a user's membership
-pub fn delete_member(group_id: &GroupID, user_id: &UserID) -> ResultBoxError {
+pub async fn delete_member(group_id: &GroupID, user_id: &UserID) -> ResultBoxError {
     database::DeleteQuery::new(GROUPS_MEMBERS_TABLE)
         .cond_group_id("groups_id", group_id)
         .cond_user_id("user_id", user_id)
         .exec()?;
 
     // Update access to group's conversations
-    conversations_helper::update_members_list_for_group_conversations(&group_id)?;
+    conversations_helper::update_members_list_for_group_conversations(&group_id).await?;
 
     Ok(())
 }
 
 /// Update a user's membership level
-pub fn update_membership_level(group_id: &GroupID, user_id: &UserID, new_level: GroupMembershipLevel) -> ResultBoxError {
+pub async fn update_membership_level(group_id: &GroupID, user_id: &UserID, new_level: GroupMembershipLevel) -> ResultBoxError {
     database::UpdateInfo::new(GROUPS_MEMBERS_TABLE)
         .cond_user_id("user_id", user_id)
         .cond_group_id("groups_id", group_id)
@@ -154,7 +154,7 @@ pub fn update_membership_level(group_id: &GroupID, user_id: &UserID, new_level:
         .exec()?;
 
     // Update access to group's conversations
-    conversations_helper::update_members_list_for_group_conversations(&group_id)?;
+    conversations_helper::update_members_list_for_group_conversations(&group_id).await?;
 
     Ok(())
 }
@@ -440,7 +440,7 @@ pub fn get_list_members(g: &GroupID) -> ResultBoxError<Vec<GroupMember>> {
 }
 
 /// Send an invitation to a user
-pub fn send_invitation(group_id: &GroupID, user_id: &UserID) -> ResultBoxError {
+pub async fn send_invitation(group_id: &GroupID, user_id: &UserID) -> ResultBoxError {
     insert_member(&GroupMember {
         id: 0,
         user_id: user_id.clone(),
@@ -448,7 +448,7 @@ pub fn send_invitation(group_id: &GroupID, user_id: &UserID) -> ResultBoxError {
         time_create: time(),
         level: GroupMembershipLevel::INVITED,
         following: true,
-    })
+    }).await
 }
 
 /// Check out whether a user received an invitation to join a group or not
@@ -462,18 +462,18 @@ pub fn received_invitation(group_id: &GroupID, user_id: &UserID) -> ResultBoxErr
 }
 
 /// Respond to a group membership invitation
-pub fn respond_invitation(g: &GroupID, u: &UserID, accept: bool) -> ResultBoxError {
+pub async fn respond_invitation(g: &GroupID, u: &UserID, accept: bool) -> ResultBoxError {
     match accept {
-        true => update_membership_level(g, u, GroupMembershipLevel::MEMBER),
-        false => delete_member(g, u),
+        true => update_membership_level(g, u, GroupMembershipLevel::MEMBER).await,
+        false => delete_member(g, u).await,
     }
 }
 
 /// Respond to a group membership request
-pub fn respond_request(group_id: &GroupID, user_id: &UserID, accept: bool) -> ResultBoxError {
+pub async fn respond_request(group_id: &GroupID, user_id: &UserID, accept: bool) -> ResultBoxError {
     match accept {
-        true => update_membership_level(&group_id, &user_id, GroupMembershipLevel::MEMBER),
-        false => delete_member(&group_id, &user_id),
+        true => update_membership_level(&group_id, &user_id, GroupMembershipLevel::MEMBER).await,
+        false => delete_member(&group_id, &user_id).await,
     }
 }
 
@@ -489,7 +489,7 @@ pub fn can_user_create_posts(group_id: &GroupID, user_id: &UserID) -> ResultBoxE
 }
 
 /// Delete a group
-pub fn delete(group_id: &GroupID) -> ResultBoxError {
+pub async fn delete(group_id: &GroupID) -> ResultBoxError {
     // Delete all likes of the group
     likes_helper::delete_all(group_id.id(), LikeType::GROUP)?;
 
@@ -497,13 +497,13 @@ pub fn delete(group_id: &GroupID) -> ResultBoxError {
     delete_logo(group_id)?;
 
     // Delete all group posts
-    posts_helper::delete_all_group(group_id)?;
+    posts_helper::delete_all_group(group_id).await?;
 
     // Delete all group related notifications
-    notifications_helper::delete_all_related_with_group(group_id)?;
+    notifications_helper::delete_all_related_with_group(group_id).await?;
 
     // Delete all conversations related with the group
-    conversations_helper::delete_all_group_conversations(group_id)?;
+    conversations_helper::delete_all_group_conversations(group_id).await?;
 
     // Delete all Forez presences related with the group
     forez_presence_helper::delete_all_group(group_id)?;
@@ -520,12 +520,12 @@ pub fn delete(group_id: &GroupID) -> ResultBoxError {
 }
 
 /// Delete all the groups a user belongs to
-pub fn delete_all_user_groups(user_id: &UserID) -> ResultBoxError {
+pub async fn delete_all_user_groups(user_id: &UserID) -> ResultBoxError {
     for group_id in &get_list_user(user_id, false)? {
         if is_last_admin(group_id, user_id)? {
-            delete(group_id)?;
+            delete(group_id).await?;
         } else {
-            delete_member(group_id, user_id)?;
+            delete_member(group_id, user_id).await?;
         }
     }
 
diff --git a/src/helpers/notifications_helper.rs b/src/helpers/notifications_helper.rs
index b6f21b4..7146fc3 100644
--- a/src/helpers/notifications_helper.rs
+++ b/src/helpers/notifications_helper.rs
@@ -17,18 +17,18 @@ use crate::utils::date_utils;
 use crate::utils::date_utils::time;
 
 /// Create post notification
-pub fn create_post_notification(from_user: &UserID, post_id: u64, action: NotifEventType) -> ResultBoxError {
+pub async fn create_post_notification(from_user: &UserID, post_id: u64, action: NotifEventType) -> ResultBoxError {
     let mut n = PartialNotification::new()
         .set_from_user_id(from_user)
         .set_on_elem_id(post_id)
         .set_on_elem_type(NotifElemType::POST)
         .set_type(action);
 
-    push(&mut n)
+    push(&mut n).await
 }
 
 /// Create & push friend notification
-pub fn create_friends_notification(from_user: &UserID, dest_user: &UserID, action: NotifEventType) -> ResultBoxError {
+pub async fn create_friends_notification(from_user: &UserID, dest_user: &UserID, action: NotifEventType) -> ResultBoxError {
     let mut n = PartialNotification::new()
         .set_from_user_id(from_user)
         .set_dest_user_id(dest_user)
@@ -36,13 +36,13 @@ pub fn create_friends_notification(from_user: &UserID, dest_user: &UserID, actio
         .set_on_elem_type(NotifElemType::FRIENDSHIP_REQUEST)
         .set_type(action);
 
-    push(&mut n)
+    push(&mut n).await
 }
 
 /// Create & push a group membership notification
-pub fn create_group_membership_notification(user_id: &UserID, moderator_id: Option<&UserID>, group_id: &GroupID, kind: NotifEventType) -> ResultBoxError {
+pub async fn create_group_membership_notification(user_id: &UserID, moderator_id: Option<&UserID>, group_id: &GroupID, kind: NotifEventType) -> Res {
     // Delete related group membership notifications
-    delete_all_related_to_group_membership_notifications(user_id, group_id)?;
+    delete_all_related_to_group_membership_notifications(user_id, group_id).await?;
 
     let mut n = PartialNotification::new()
         .set_on_elem_id(group_id.id())
@@ -64,11 +64,11 @@ pub fn create_group_membership_notification(user_id: &UserID, moderator_id: Opti
         }
     }
 
-    push(&mut n)
+    push(&mut n).await
 }
 
 /// Push a new notification
-fn push(n: &mut PartialNotification) -> ResultBoxError
+async fn push(n: &mut PartialNotification) -> ResultBoxError
 {
     if n.time_create.is_none()
     {
@@ -110,7 +110,7 @@ fn push(n: &mut PartialNotification) -> ResultBoxError
                 n.dest_user_id = Some(post.user_id);
             }
 
-            return push_private(n);
+            return push_private(n).await;
         }
 
         // Posts on user page
@@ -129,12 +129,12 @@ fn push(n: &mut PartialNotification) -> ResultBoxError
                 .map(|f| f.friend_id)
                 .collect();
 
-            return push_public(n, friends);
+            return push_public(n, friends).await;
         }
 
         // Posts on group pages
         else if post.is_on_group_page() {
-            return push_group_members(n, post.group_id().unwrap());
+            return push_group_members(n, post.group_id().unwrap()).await;
         }
 
         // Unsupported scenario
@@ -148,7 +148,7 @@ fn push(n: &mut PartialNotification) -> ResultBoxError
         n.container_id = None;
         n.container_type = None;
 
-        return push_private(n);
+        return push_private(n).await;
     }
 
 
@@ -165,9 +165,9 @@ fn push(n: &mut PartialNotification) -> ResultBoxError
         {
             // Push the notification in private way (if it has a destination,
             // generally the target user of the membership request)
-            push_private(n)
+            push_private(n).await
         } else {
-            push_group_moderators(n, &GroupID::new(n.on_elem_id.unwrap()))
+            push_group_moderators(n, &GroupID::new(n.on_elem_id.unwrap())).await
         };
     } else {
         unimplemented!();
@@ -175,32 +175,32 @@ fn push(n: &mut PartialNotification) -> ResultBoxError
 }
 
 /// Push a notification to group members
-fn push_group_members(n: &mut PartialNotification, group_id: &GroupID) -> ResultBoxError {
+async fn push_group_members(n: &mut PartialNotification, group_id: &GroupID) -> ResultBoxError {
     let mut list = groups_helper::get_list_followers(group_id)?;
     list = list.into_iter().filter(|f| f != n.from_user_id.as_ref().unwrap()).collect();
-    push_public(n, list)
+    push_public(n, list).await
 }
 
 /// Push a notification to all the moderators & administrators of a group
-fn push_group_moderators(n: &mut PartialNotification, group_id: &GroupID) -> ResultBoxError {
+async fn push_group_moderators(n: &mut PartialNotification, group_id: &GroupID) -> ResultBoxError {
     let list = groups_helper::get_list_members(group_id)?;
     let list: Vec<UserID> = list
         .into_iter()
         .filter(|e| e.is_moderator())
         .map(|f| f.user_id)
         .collect();
-    push_public(n, list)
+    push_public(n, list).await
 }
 
 /// Push a public notification
-fn push_public(n: &mut PartialNotification, users: Vec<UserID>) -> ResultBoxError {
+async fn push_public(n: &mut PartialNotification, users: Vec<UserID>) -> Res {
     n.visibility = Some(NotifEventVisibility::EVENT_PUBLIC);
 
     for user_id in users {
         n.dest_user_id = Some(user_id);
 
         if !similar_exists(n)? {
-            create(n)?;
+            create(n).await?;
         }
     }
 
@@ -208,18 +208,18 @@ fn push_public(n: &mut PartialNotification, users: Vec<UserID>) -> ResultBoxErro
 }
 
 /// Push a private notification (to 1 user)
-fn push_private(n: &mut PartialNotification) -> ResultBoxError {
+async fn push_private(n: &mut PartialNotification) -> Res {
     n.visibility = Some(NotifEventVisibility::EVENT_PRIVATE);
 
     if !similar_exists(n)? {
-        create(n)?;
+        create(n).await?;
     }
 
     Ok(())
 }
 
 /// Create a new notification
-fn create(n: &PartialNotification) -> ResultBoxError {
+async fn create(n: &PartialNotification) -> ResultBoxError {
     if n.dest_user_id.is_none() || n.from_user_id.is_none()
     {
         return Err(ExecError::boxed_new("Trying to send a notification without a source or a destination!"));
@@ -230,14 +230,14 @@ fn create(n: &PartialNotification) -> ResultBoxError {
         .insert_drop_result()?;
 
     // Send a notification (updated_number_conversations)
-    events_helper::propagate_event(&Event::UpdatedNotificationsNumber(&vec![n.dest_user_id.clone().unwrap()]))?;
+    events_helper::propagate_event(Event::UpdatedNotificationsNumber(vec![n.dest_user_id.clone().unwrap()])).await?;
 
     Ok(())
 }
 
 
 /// Delete notifications
-pub fn delete(notification: &PartialNotification) -> ResultBoxError {
+pub async fn delete(notification: &PartialNotification) -> ResultBoxError {
     let conditions = notif_to_db(notification, false);
 
     // Get the list of affected users
@@ -252,23 +252,23 @@ pub fn delete(notification: &PartialNotification) -> ResultBoxError {
         .exec()?;
 
     // Send a notification (updated_number_conversations)
-    events_helper::propagate_event(&Event::UpdatedNotificationsNumber(&users))?;
+    events_helper::propagate_event(Event::UpdatedNotificationsNumber(users)).await?;
 
     Ok(())
 }
 
 /// Delete all the notifications of a given user
-pub fn delete_all_user(user_id: &UserID) -> ResultBoxError {
-    delete(&PartialNotification::new().set_dest_user_id(user_id))
+pub async fn delete_all_user(user_id: &UserID) -> ResultBoxError {
+    delete(&PartialNotification::new().set_dest_user_id(user_id)).await
 }
 
 /// Delete all the notifications related with a user
-pub fn delete_all_related_with_user(user_id: &UserID) -> ResultBoxError {
+pub async fn delete_all_related_with_user(user_id: &UserID) -> ResultBoxError {
     // Delete all the notifications targeting the user
-    delete_all_user(user_id)?;
+    delete_all_user(user_id).await?;
 
     // Delete all the notifications created by the user
-    delete(&PartialNotification::new().set_from_user_id(user_id))?;
+    delete(&PartialNotification::new().set_from_user_id(user_id)).await?;
 
     Ok(())
 }
@@ -288,66 +288,66 @@ pub fn clean_old_user_notifications(user: &User) -> Res {
 }
 
 /// Delete all the notifications related with a group
-pub fn delete_all_related_with_group(group_id: &GroupID) -> ResultBoxError {
+pub async fn delete_all_related_with_group(group_id: &GroupID) -> ResultBoxError {
     delete(&PartialNotification::new()
         .set_on_elem_type(NotifElemType::GROUP_MEMBERSHIP)
         .set_on_elem_id(group_id.id())
-    )?;
+    ).await?;
 
     delete(&PartialNotification::new()
         .set_on_elem_type(NotifElemType::GROUP_PAGE)
         .set_on_elem_id(group_id.id())
-    )
+    ).await
 }
 
 /// Delete all the notifications related to a group membership
-pub fn delete_all_related_to_group_membership_notifications(user_id: &UserID, group_id: &GroupID) -> ResultBoxError {
+pub async fn delete_all_related_to_group_membership_notifications(user_id: &UserID, group_id: &GroupID) -> ResultBoxError {
     let mut n = PartialNotification::new()
         .set_on_elem_type(NotifElemType::GROUP_MEMBERSHIP)
         .set_on_elem_id(group_id.id());
 
     n.dest_user_id = Some(user_id.clone());
     n.from_user_id = None;
-    delete(&n)?;
+    delete(&n).await?;
 
     n.dest_user_id = None;
     n.from_user_id = Some(user_id.clone());
-    delete(&n)?;
+    delete(&n).await?;
 
     Ok(())
 }
 
 /// Delete all the notifications about a post targeting a specified user
-pub fn delete_all_post_notifications_targeting_user(user_id: &UserID, post_id: PostID) -> ResultBoxError {
+pub async fn delete_all_post_notifications_targeting_user(user_id: &UserID, post_id: PostID) -> ResultBoxError {
     let n = PartialNotification::new()
         .set_dest_user_id(user_id)
         .set_on_elem_type(NotifElemType::POST)
         .set_on_elem_id(post_id);
 
-    delete(&n)
+    delete(&n).await
 }
 
 /// Delete all the notifications related with a post
-pub fn delete_all_related_with_post(post_id: PostID) -> ResultBoxError {
+pub async fn delete_all_related_with_post(post_id: PostID) -> ResultBoxError {
     let n = PartialNotification::new()
         .set_on_elem_type(NotifElemType::POST)
         .set_on_elem_id(post_id);
 
-    delete(&n)
+    delete(&n).await
 }
 
 /// Delete all the notifications related with a friendship request
-pub fn delete_all_related_with_friendship_request(user_one: &UserID, user_two: &UserID) -> ResultBoxError {
+pub async fn delete_all_related_with_friendship_request(user_one: &UserID, user_two: &UserID) -> ResultBoxError {
     let mut n = PartialNotification::new()
         .set_on_elem_type(NotifElemType::FRIENDSHIP_REQUEST);
 
     n.from_user_id = Some(user_one.clone());
     n.dest_user_id = Some(user_two.clone());
-    delete(&n)?;
+    delete(&n).await?;
 
     n.from_user_id = Some(user_two.clone());
     n.dest_user_id = Some(user_one.clone());
-    delete(&n)
+    delete(&n).await
 }
 
 /// Check out whether a similar notification exists for given specifications
diff --git a/src/helpers/posts_helper.rs b/src/helpers/posts_helper.rs
index 4c14af5..ae8cad9 100644
--- a/src/helpers/posts_helper.rs
+++ b/src/helpers/posts_helper.rs
@@ -412,15 +412,15 @@ pub fn set_content(post_id: u64, new_content: &str) -> ResultBoxError {
 }
 
 /// Delete a post
-pub fn delete(p: &Post) -> ResultBoxError {
+pub async fn delete(p: &Post) -> ResultBoxError {
     // Delete all the notifications related with the post
-    notifications_helper::delete_all_related_with_post(p.id)?;
+    notifications_helper::delete_all_related_with_post(p.id).await?;
 
     // Delete all the likes associated with the post
     likes_helper::delete_all(p.id, LikeType::POST)?;
 
     // Delete all the comments associated to the post
-    comments_helper::delete_all(p.id)?;
+    comments_helper::delete_all(p.id).await?;
 
     // Delete associated file / resource (if any)
     match &p.kind {
@@ -452,25 +452,25 @@ pub fn delete(p: &Post) -> ResultBoxError {
 }
 
 /// Delete all the posts related with a group
-pub fn delete_all_group(group_id: &GroupID) -> ResultBoxError {
+pub async fn delete_all_group(group_id: &GroupID) -> ResultBoxError {
     for post in export_all_posts_group(group_id)? {
-        delete(&post)?;
+        delete(&post).await?;
     }
 
     Ok(())
 }
 
 /// Delete all the posts of a given user
-pub fn delete_all_user(user_id: &UserID) -> ResultBoxError {
+pub async fn delete_all_user(user_id: &UserID) -> ResultBoxError {
     for post in &export_all_posts_user(user_id)? {
-        delete(&post)?;
+        delete(&post).await?;
     }
 
     Ok(())
 }
 
 /// Clean the old posts of a user
-pub fn clean_old_posts(user: &User) -> Res {
+pub async fn clean_old_posts(user: &User) -> Res {
     let lifetime = user.delete_posts_after.unwrap_or(0);
     if lifetime < 1 {
         return Ok(());
@@ -484,7 +484,7 @@ pub fn clean_old_posts(user: &User) -> Res {
         .exec(db_to_post)?;
 
     for post in posts {
-        delete(&post)?;
+        delete(&post).await?;
     }
 
     Ok(())
diff --git a/src/routes.rs b/src/routes.rs
index 43172e4..04d22c8 100644
--- a/src/routes.rs
+++ b/src/routes.rs
@@ -413,7 +413,7 @@ pub async fn find_route(req_uri: &str, call: Option<&mut HttpRequestHandler>) ->
 
 
     // Likes controller
-    route!(req_uri, call, POST_LOGIN, "/likes/update", likes_controller::update_async);
+    route!(req_uri, call, POST_LOGIN, "/likes/update", likes_controller::update);
 
 
     // Surveys controller
diff --git a/src/user_ws_routes.rs b/src/user_ws_routes.rs
index 7c5486a..640f26f 100644
--- a/src/user_ws_routes.rs
+++ b/src/user_ws_routes.rs
@@ -21,20 +21,20 @@ pub async fn exec_user_ws_route(uri: &str, handler: &mut UserWsRequestHandler) -
         "$main/unregister_post" => Some(user_ws_actions::unregister_post(handler)),
 
         // Likes controller
-        "likes/update" => Some(likes_controller::update(handler)),
+        "likes/update" => Some(likes_controller::update(handler).await),
 
         // Conversations controller
-        "conversations/is_writing" => Some(conversations_controller::member_is_writing(handler)),
+        "conversations/is_writing" => Some(conversations_controller::member_is_writing(handler).await),
 
         // Calls controller
-        "calls/config" => Some(calls_controller::get_config(handler)),
-        "calls/join" => Some(calls_controller::join_call(handler)),
-        "calls/leave" => Some(calls_controller::leave_call(handler)),
-        "calls/members" => Some(calls_controller::get_members_list(handler)),
-        "calls/signal" => Some(calls_controller::on_client_signal(handler)),
-        "calls/mark_ready" => Some(calls_controller::mark_user_ready(handler)),
-        "calls/request_offer" => Some(calls_controller::request_offer(handler)),
-        "calls/stop_streaming" => Some(calls_controller::stop_streaming(handler)),
+        "calls/config" => Some(calls_controller::get_config(handler).await),
+        "calls/join" => Some(calls_controller::join_call(handler).await),
+        "calls/leave" => Some(calls_controller::leave_call(handler).await),
+        "calls/members" => Some(calls_controller::get_members_list(handler).await),
+        "calls/signal" => Some(calls_controller::on_client_signal(handler).await),
+        "calls/mark_ready" => Some(calls_controller::mark_user_ready(handler).await),
+        "calls/request_offer" => Some(calls_controller::request_offer(handler).await),
+        "calls/stop_streaming" => Some(calls_controller::stop_streaming(handler).await),
 
         // Presence controller
         "forez_presence/list" => Some(forez_controller::get_list(handler)),