diff --git a/lib/grammers-client/src/client/net.rs b/lib/grammers-client/src/client/net.rs
index 8e95406a..122b4c7c 100644
--- a/lib/grammers-client/src/client/net.rs
+++ b/lib/grammers-client/src/client/net.rs
@@ -30,6 +30,7 @@ use tokio::sync::{Mutex as AsyncMutex, RwLock as AsyncRwLock};
 ///
 /// The addresses were obtained from the `static` addresses through a call to
 /// `functions::help::GetConfig`.
+#[cfg(not(all(target_arch = "wasm32", target_os = "unknown")))]
 const DC_ADDRESSES: [(Ipv4Addr, u16); 6] = [
     (Ipv4Addr::new(0, 0, 0, 0), 0),
     (Ipv4Addr::new(149, 154, 175, 53), 443),
@@ -72,12 +73,13 @@ pub(crate) async fn connect_sender(
     #[cfg(all(target_arch = "wasm32", target_os = "unknown"))]
     let transport = transport::Obfuscated::new(transport::Intermediate::new());
 
-    let tcp_addr = DC_ADDRESSES[dc_id as usize].into();
     let addr: ServerAddr = if let Some(ref sa) = config.params.server_addr {
         sa.clone()
     } else {
         #[cfg(all(not(all(target_arch = "wasm32", target_os = "unknown")),))]
         let addr = {
+            let tcp_addr = DC_ADDRESSES[dc_id as usize].into();
+
             #[cfg(not(feature = "proxy"))]
             let addr = ServerAddr::Tcp { address: tcp_addr };
 
@@ -117,9 +119,31 @@ pub(crate) async fn connect_sender(
         );
 
         let (sender, tx) =
-            sender::connect(transport, addr, config.params.reconnection_policy).await?;
-
-        config.session.insert_dc(dc_id, tcp_addr, sender.auth_key());
+            sender::connect(transport, addr.clone(), config.params.reconnection_policy).await?;
+
+        match addr {
+            #[cfg(not(all(target_arch = "wasm32", target_os = "unknown")))]
+            ServerAddr::Tcp { ref address, .. } => {
+                config
+                    .session
+                    .insert_dc_tcp(dc_id, address, sender.auth_key());
+            }
+            #[cfg(all(
+                not(all(target_arch = "wasm32", target_os = "unknown")),
+                feature = "proxy"
+            ))]
+            ServerAddr::Proxied { ref address, .. } => {
+                config
+                    .session
+                    .insert_dc_tcp(dc_id, address, sender.auth_key());
+            }
+            #[cfg(all(target_arch = "wasm32", target_os = "unknown"))]
+            ServerAddr::Ws { ref address } => {
+                config
+                    .session
+                    .insert_dc_ws(dc_id, address, sender.auth_key());
+            }
+        }
         (sender, tx)
     };
 
diff --git a/lib/grammers-session/build.rs b/lib/grammers-session/build.rs
index 0e12e2b3..79323860 100644
--- a/lib/grammers-session/build.rs
+++ b/lib/grammers-session/build.rs
@@ -12,7 +12,7 @@ use std::fs::File;
 use std::io::{BufWriter, Write};
 use std::path::Path;
 
-const CURRENT_VERSION: i32 = 2;
+const CURRENT_VERSION: i32 = 3;
 
 fn main() -> std::io::Result<()> {
     let mut file = BufWriter::new(File::create(
@@ -23,6 +23,7 @@ fn main() -> std::io::Result<()> {
     let definitions = parse_tl_file(
         r#"
         dataCenter flags:# id:int ipv4:flags.0?int ipv6:flags.1?int128 port:int auth:flags.2?bytes = DataCenter;
+        dataCenterWs flags:# id:int url:string auth:flags.0?bytes = DataCenter;
         user id:long dc:int bot:Bool = User;
         channelState channel_id:long pts:int = ChannelState;
         updateState pts:int qts:int date:int seq:int channels:Vector<ChannelState> = UpdateState;
diff --git a/lib/grammers-session/src/lib.rs b/lib/grammers-session/src/lib.rs
index 2a2b1bd7..f7edda5d 100644
--- a/lib/grammers-session/src/lib.rs
+++ b/lib/grammers-session/src/lib.rs
@@ -91,38 +91,37 @@ impl Session {
             .unwrap()
             .dcs
             .iter()
-            .filter_map(|enums::DataCenter::Center(dc)| {
-                if dc.id == dc_id {
-                    if let Some(auth) = &dc.auth {
-                        let mut bytes = [0; 256];
-                        bytes.copy_from_slice(auth);
-                        Some(bytes)
-                    } else {
-                        None
-                    }
-                } else {
-                    None
-                }
+            .filter_map(|dc| match dc {
+                enums::DataCenter::Center(types::DataCenter {
+                    id,
+                    auth: Some(auth),
+                    ..
+                }) if *id == dc_id => auth.clone().try_into().ok(),
+                enums::DataCenter::Ws(types::DataCenterWs {
+                    id,
+                    auth: Some(auth),
+                    ..
+                }) if *id == dc_id => auth.clone().try_into().ok(),
+                _ => None,
             })
             .next()
     }
 
-    pub fn insert_dc(&self, id: i32, addr: SocketAddr, auth: [u8; 256]) {
+    fn insert_dc(&self, dc: enums::DataCenter) {
         let mut session = self.session.lock().unwrap();
-        if let Some(pos) = session
-            .dcs
-            .iter()
-            .position(|enums::DataCenter::Center(dc)| dc.id == id)
-        {
+        if let Some(pos) = session.dcs.iter().position(|dc| dc.id() == dc.id()) {
             session.dcs.remove(pos);
         }
+        session.dcs.push(dc);
+    }
 
-        let (ip_v4, ip_v6): (Option<&SocketAddrV4>, Option<&SocketAddrV6>) = match &addr {
+    pub fn insert_dc_tcp(&self, id: i32, addr: &SocketAddr, auth: [u8; 256]) {
+        let (ip_v4, ip_v6): (Option<&SocketAddrV4>, Option<&SocketAddrV6>) = match addr {
             SocketAddr::V4(ip_v4) => (Some(ip_v4), None),
             SocketAddr::V6(ip_v6) => (None, Some(ip_v6)),
         };
 
-        session.dcs.push(
+        self.insert_dc(
             types::DataCenter {
                 id,
                 ipv4: ip_v4.map(|addr| i32::from_le_bytes(addr.ip().octets())),
@@ -134,6 +133,17 @@ impl Session {
         );
     }
 
+    pub fn insert_dc_ws(&self, id: i32, url: &str, auth: [u8; 256]) {
+        self.insert_dc(
+            types::DataCenterWs {
+                id,
+                url: url.to_string(),
+                auth: Some(auth.into()),
+            }
+            .into(),
+        );
+    }
+
     pub fn set_user(&self, id: i64, dc: i32, bot: bool) {
         self.session.lock().unwrap().user = Some(User { id, dc, bot }.into())
     }
@@ -158,14 +168,8 @@ impl Session {
         self.session.lock().unwrap().state = Some(state.into())
     }
 
-    pub fn get_dcs(&self) -> Vec<types::DataCenter> {
-        self.session
-            .lock()
-            .unwrap()
-            .dcs
-            .iter()
-            .map(|enums::DataCenter::Center(dc)| dc.clone())
-            .collect()
+    pub fn get_dcs(&self) -> Vec<enums::DataCenter> {
+        self.session.lock().unwrap().dcs.iter().cloned().collect()
     }
 
     #[must_use]