diff --git a/Server/include/ServerManager/ServerManager.hpp b/Server/include/ServerManager/ServerManager.hpp
index 217f2ef..e210f3c 100644
--- a/Server/include/ServerManager/ServerManager.hpp
+++ b/Server/include/ServerManager/ServerManager.hpp
@@ -40,6 +40,15 @@ public:
         });
     }
 
+    void processLoginRequestPacket(LoginRequestPacket loginRequestPacket, IOCPPASSINDATA* data);
+    void processRoomCreateRequestPacket(RoomCreateRequestPacket roomCreateRequestPacket, IOCPPASSINDATA* data);
+    void processRoomListRequest(RoomListRequestPacket roomListRequestPacket, IOCPPASSINDATA* data);
+    void processRoomJoinRequestPacket(RoomJoinRequestPacket roomJoinRequestPacket, IOCPPASSINDATA* data);
+    void processRoomExitRequestPacket(RoomExitRequestPacket roomExitRequestPacket, IOCPPASSINDATA* data);
+    void processUsersListRequestPacket(UsersListRequestPacket usersListRequestPacket, IOCPPASSINDATA* data);
+    void processDataPostPacket(DataPostPacket dataPostPacket, IOCPPASSINDATA* data);
+    void processContinuePacket(ContinuePacket continuePacket, IOCPPASSINDATA* data);
+
     void registerUser(std::string userName, std::shared_ptr<TCPSocket> sock);
     void deleteUser(Snowflake UID);
     std::vector<std::pair<Snowflake, std::string>> getUserList();
diff --git a/Server/src/ServerManager/ServerManager.cpp b/Server/src/ServerManager/ServerManager.cpp
index cbc305e..47534de 100644
--- a/Server/src/ServerManager/ServerManager.cpp
+++ b/Server/src/ServerManager/ServerManager.cpp
@@ -8,175 +8,99 @@ void ServerManager::_IOCPClient(Chattr::ThreadPool* thread, Chattr::IOCPPASSINDA
     Chattr::Packet pack;
     int packetSize = data->transferredbytes;
 
-    if (data->recvbytes == 0) {
-        data->recvbytes = data->transferredbytes;
-        data->transferredbytes = 0;
-    }
-    else if (data->transferredbytes <= data->sendbytes) {
+    if (data->event == IOCPEVENT::WRITE && data->transferredbytes >= data->wsabuf.len) {
+        data->event = IOCPEVENT::READ;
+        data->wsabuf.len = 1500;
         data->IOCPInstance->recv(data, 1);
         return;
     }
 
     memcpy(pack.serialized, data->wsabuf.buf, data->wsabuf.len);
 
-    DataPostPacket dataPostPacket;
-    ResponsePacket responsePacket;
+    std::uint16_t packetLength = ::ntohs(pack.__data.packetLength);
+
+    if (data->event == IOCPEVENT::READ && data->transferredbytes < packetLength + 8) {
+        data->IOCPInstance->recv(data, 1);
+        data->wsabuf.len = 1500;
+        return;
+    }
 
     pack.convToH();
-
-    std::uint16_t packetLength = pack.__data.packetLength;
-
-    switch (packetParser(pack)) {
+    PacketSet packetSet = packetParser(pack);
+    pack.convToN();
+    switch (packetSet) {
     case PacketSet::LOGINREQUEST: {
-            pack.convToN();
             LoginRequestPacket loginRequestPacket;
-            std::memcpy(&loginRequestPacket.serialized, &pack, 8 + packetLength);
+            std::memcpy(&loginRequestPacket.serialized, pack.serialized, 8 + packetLength);
             loginRequestPacket.convToH();
-
-            std::string userName(
-                    (char*)loginRequestPacket.__data.data,
-                    loginRequestPacket.__data.packetLength);
-            registerUser(userName, data->socket);
-
-            LoginResponsePacket loginResponsePacket;
-            loginResponsePacket.__data.packetType = Chattr::PacketCategory::PACKET_RESPONSE;
-            loginResponsePacket.__data.requestType = Chattr::RequestType::LOGIN;
-            loginResponsePacket.__data.dataType = Chattr::DataType::TEXT;
-            loginResponsePacket.__data.packetLength = sizeof(Chattr::ResponseStatusCode) + sizeof(Snowflake);
-            loginResponsePacket.__data.responseStatusCode = Chattr::ResponseStatusCode::OK;
-            Snowflake yourId = userSocket2UID_[data->socket];
-            ::memcpy(loginResponsePacket.__data.yourId, &yourId, sizeof(Snowflake));
-
-            loginResponsePacket.convToN();
-            memcpy(data->wsabuf.buf, loginResponsePacket.serialized, 16);
-            data->sendbytes = 16;
-            data->transferredbytes = 16;
-            data->wsabuf.len = 16;
-            data->IOCPInstance->send(data, 1, 0);
+            processLoginRequestPacket(loginRequestPacket, data);
         }
         break;
-    case PacketSet::ROOMCREATEREQUEST:
+    case PacketSet::ROOMCREATEREQUEST: {
+            RoomCreateRequestPacket roomCreateRequestPacket;
+            std::memcpy(&roomCreateRequestPacket.serialized, pack.serialized, 8 + packetLength);
+            roomCreateRequestPacket.convToH();
+            processRoomCreateRequestPacket(roomCreateRequestPacket, data);
+        }
         break;
-    case PacketSet::ROOMLISTREQUEST:
+    case PacketSet::ROOMLISTREQUEST: {
+            RoomListRequestPacket roomListRequestPacket;
+            std::memcpy(&roomListRequestPacket.serialized, pack.serialized, 8 + packetLength);
+            roomListRequestPacket.convToH();
+            processRoomListRequest(roomListRequestPacket, data);
+        }
         break;
-    case PacketSet::ROOMJOINREQUEST:
+    case PacketSet::ROOMJOINREQUEST: {
+            RoomJoinRequestPacket roomJoinRequestPacket;
+            std::memcpy(&roomJoinRequestPacket.serialized, pack.serialized, 8 + packetLength);
+            roomJoinRequestPacket.convToH();
+            processRoomJoinRequestPacket(roomJoinRequestPacket, data);
+        }
         break;
-    case PacketSet::ROOMEXITREQUEST:
+    case PacketSet::ROOMEXITREQUEST: {
+            RoomExitRequestPacket roomExitRequestPacket;
+            std::memcpy(&roomExitRequestPacket.serialized, pack.serialized, 8 + packetLength);
+            roomExitRequestPacket.convToH();
+            processRoomExitRequestPacket(roomExitRequestPacket, data);
+        }
         break;
     case PacketSet::USERSLISTREQUEST: {
-            pack.convToN();
             UsersListRequestPacket usersListRequestPacket;
-            std::memcpy(&usersListRequestPacket.serialized, &pack, 8 + packetLength);
+            std::memcpy(&usersListRequestPacket.serialized, pack.serialized, 8 + packetLength);
             usersListRequestPacket.convToH();
-
-            auto usersList = getUserList();
-
-            for (auto user : usersList) {
-                UsersListResponsePacket usersListResponsePacket;
-                usersListResponsePacket.__data.packetType = Chattr::PacketCategory::PACKET_RESPONSE;
-                usersListResponsePacket.__data.requestType = Chattr::RequestType::USERS_LIST;
-                usersListResponsePacket.__data.dataType = Chattr::DataType::BINARY;
-                usersListResponsePacket.__data.packetLength = sizeof(Chattr::ResponseStatusCode) + sizeof(std::uint32_t) + sizeof(Snowflake) + user.second.size();
-                usersListResponsePacket.__data.responseStatusCode = Chattr::ResponseStatusCode::OK;
-                usersListResponsePacket.__data.usersCount = usersList.size();
-                ::memcpy(usersListResponsePacket.__data.userId, &user.first, sizeof(Snowflake));
-                ::memcpy(usersListResponsePacket.__data.name, user.second.c_str(), user.second.size());
-
-                int sendPacketLength = usersListResponsePacket.__data.packetLength;
-
-                Chattr::IOCPPASSINDATA* ptr = new Chattr::IOCPPASSINDATA;
-                ::memset(&ptr->overlapped, 0, sizeof(OVERLAPPED));
-                ptr->socket = data->socket;
-                ptr->recvbytes = ptr->sendbytes = 0;
-                ptr->wsabuf.buf = ptr->buf;
-                ptr->wsabuf.len = 1500;
-                ptr->IOCPInstance = data->IOCPInstance;
-
-                usersListResponsePacket.convToN();
-                memcpy(ptr->wsabuf.buf, usersListResponsePacket.serialized, sendPacketLength + 8);
-                data->sendbytes = sendPacketLength + 8;
-                data->transferredbytes = sendPacketLength + 8;
-                data->wsabuf.len = sendPacketLength + 8;
-                data->IOCPInstance->send(ptr, 1, 0);
-            }
+            processUsersListRequestPacket(usersListRequestPacket, data);
         }
         break;
-    case PacketSet::DATAPOSTTEXT: {
-            pack.convToN();
-            std::memcpy(&dataPostPacket.serialized, &pack, 8 + packetLength);
+    case PacketSet::DATAPOST: {
+            DataPostPacket dataPostPacket;
+            std::memcpy(&dataPostPacket.serialized, &pack.serialized, 8 + packetLength);
             dataPostPacket.convToH();
-
-            Snowflake destID = {};
-
-            ::memcpy(&destID.snowflake, dataPostPacket.__data.destId, sizeof(Snowflake));
-
-            std::vector<std::shared_ptr<TCPSocket>> destinationSockets;
-
-            if (userNames_.find(destID) != userNames_.end())
-                destinationSockets.push_back(UID2userSocket_[destID]);
-            else
-                for (auto user : rooms_[destID])
-                    destinationSockets.push_back(user.second);
-
-            spdlog::info("Received [{}] from : [{}] to : [{}]",
-                std::string((char*)dataPostPacket.__data.data, dataPostPacket.__data.packetLength - (sizeof(std::uint16_t) * 5)),
-                (std::string)data->socket->remoteAddr,
-                destID.snowflake);
-
+            processDataPostPacket(dataPostPacket, data);
+        }
+        break;
+    case PacketSet::CONTINUE: {
+            ContinuePacket continuePacket;
+            std::memcpy(&continuePacket.serialized, &pack.serialized, 8 + packetLength);
+            continuePacket.convToH();
+            processContinuePacket(continuePacket, data);
+        }
+        break;
+    case PacketSet::INVALID:
+    default: {
+            ResponsePacket responsePacket;
             responsePacket.__data.packetType = Chattr::PacketCategory::PACKET_RESPONSE;
             responsePacket.__data.requestType = Chattr::RequestType::DATA;
             responsePacket.__data.dataType = Chattr::DataType::TEXT;
             responsePacket.__data.packetLength = sizeof(Chattr::ResponseStatusCode);
-            responsePacket.__data.responseStatusCode = Chattr::ResponseStatusCode::OK;
+            responsePacket.__data.responseStatusCode = Chattr::ResponseStatusCode::BAD_REQUEST;
 
             responsePacket.convToN();
             memcpy(data->wsabuf.buf, responsePacket.serialized, 10);
             data->sendbytes = 10;
-            data->transferredbytes = 10;
             data->wsabuf.len = 10;
             data->IOCPInstance->send(data, 1, 0);
-
-            for (auto dest : destinationSockets) {
-                dataPostPacket.__data.packetType = Chattr::PacketCategory::PACKET_POST;
-                dataPostPacket.__data.requestType = Chattr::RequestType::DATA;
-                dataPostPacket.__data.dataType = Chattr::DataType::TEXT;
-
-                Chattr::IOCPPASSINDATA* ptr = new Chattr::IOCPPASSINDATA;
-                ::memset(&ptr->overlapped, 0, sizeof(OVERLAPPED));
-                ptr->socket = dest;
-                ptr->recvbytes = ptr->sendbytes = 0;
-                ptr->wsabuf.buf = ptr->buf;
-                ptr->wsabuf.len = 1500;
-                ptr->IOCPInstance = data->IOCPInstance;
-
-                dataPostPacket.convToN();
-                memcpy(ptr->wsabuf.buf, dataPostPacket.serialized, packetLength + 6);
-                data->sendbytes = packetLength + 6;
-                data->transferredbytes = packetLength + 6;
-                data->wsabuf.len = packetLength + 6;
-                data->IOCPInstance->send(ptr, 1, 0);
-            }
         }
         break;
-    case PacketSet::DATAPOSTBINARY:
-        break;
-    case PacketSet::CONTINUE:
-        break;
-    case PacketSet::INVALID:
-    default:
-        responsePacket.__data.packetType = Chattr::PacketCategory::PACKET_RESPONSE;
-        responsePacket.__data.requestType = Chattr::RequestType::DATA;
-        responsePacket.__data.dataType = Chattr::DataType::TEXT;
-        responsePacket.__data.packetLength = sizeof(Chattr::ResponseStatusCode);
-        responsePacket.__data.responseStatusCode = Chattr::ResponseStatusCode::BAD_REQUEST;
-
-        responsePacket.convToN();
-        memcpy(data->wsabuf.buf, responsePacket.serialized, 10);
-        data->sendbytes = 10;
-        data->transferredbytes = 10;
-        data->wsabuf.len = 10;
-        data->IOCPInstance->send(data, 1, 0);
-        break;
     }
 }
 
@@ -191,9 +115,8 @@ PacketSet ServerManager::packetParser(Packet Packet) {
         }
         switch (Packet.__data.dataType) {
         case DataType::TEXT:
-            return PacketSet::DATAPOSTTEXT;
         case DataType::BINARY:
-            return PacketSet::DATAPOSTBINARY;
+            return PacketSet::DATAPOST;
         default:
             return PacketSet::INVALID;
         }
@@ -243,6 +166,123 @@ PacketSet ServerManager::packetParser(Packet Packet) {
     return PacketSet::INVALID;
 }
 
+void ServerManager::processLoginRequestPacket(LoginRequestPacket loginRequestPacket, Chattr::IOCPPASSINDATA* data) {
+    std::string userName(
+        (char*)loginRequestPacket.__data.data,
+        loginRequestPacket.__data.packetLength);
+    registerUser(userName, data->socket);
+
+    LoginResponsePacket loginResponsePacket;
+    loginResponsePacket.__data.packetType = Chattr::PacketCategory::PACKET_RESPONSE;
+    loginResponsePacket.__data.requestType = Chattr::RequestType::LOGIN;
+    loginResponsePacket.__data.dataType = Chattr::DataType::TEXT;
+    loginResponsePacket.__data.packetLength = sizeof(Chattr::ResponseStatusCode) + sizeof(Snowflake);
+    loginResponsePacket.__data.responseStatusCode = Chattr::ResponseStatusCode::OK;
+    Snowflake yourId = userSocket2UID_[data->socket];
+    ::memcpy(loginResponsePacket.__data.yourId, &yourId, sizeof(Snowflake));
+
+    loginResponsePacket.convToN();
+    memcpy(data->wsabuf.buf, loginResponsePacket.serialized, 16);
+    data->sendbytes = 16;
+    data->wsabuf.len = 16;
+    data->IOCPInstance->send(data, 1, 0);
+}
+
+void ServerManager::processRoomCreateRequestPacket(RoomCreateRequestPacket roomCreateRequestPacket, Chattr::IOCPPASSINDATA* data) {
+}
+
+void ServerManager::processRoomListRequest(RoomListRequestPacket roomListRequestPacket, Chattr::IOCPPASSINDATA* data) {
+}
+
+void ServerManager::processRoomJoinRequestPacket(RoomJoinRequestPacket roomJoinRequestPacket, Chattr::IOCPPASSINDATA* data) {
+}
+
+void ServerManager::processRoomExitRequestPacket(RoomExitRequestPacket roomExitRequestPacket, Chattr::IOCPPASSINDATA* data) {
+}
+
+void ServerManager::processUsersListRequestPacket(UsersListRequestPacket usersListRequestPacket, Chattr::IOCPPASSINDATA* data) {
+    auto usersList = getUserList();
+
+    for (auto user : usersList) {
+        UsersListResponsePacket usersListResponsePacket;
+        usersListResponsePacket.__data.packetType = Chattr::PacketCategory::PACKET_RESPONSE;
+        usersListResponsePacket.__data.requestType = Chattr::RequestType::USERS_LIST;
+        usersListResponsePacket.__data.dataType = Chattr::DataType::BINARY;
+        usersListResponsePacket.__data.packetLength = sizeof(Chattr::ResponseStatusCode) + sizeof(std::uint32_t) + sizeof(Snowflake) + user.second.size();
+        usersListResponsePacket.__data.responseStatusCode = Chattr::ResponseStatusCode::OK;
+        usersListResponsePacket.__data.usersCount = usersList.size();
+        ::memcpy(usersListResponsePacket.__data.userId, &user.first, sizeof(Snowflake));
+        ::memcpy(usersListResponsePacket.__data.name, user.second.c_str(), user.second.size());
+
+        int packetLength = usersListResponsePacket.__data.packetLength;
+
+        Chattr::IOCPPASSINDATA* ptr = new Chattr::IOCPPASSINDATA;
+        ::memset(&ptr->overlapped, 0, sizeof(OVERLAPPED));
+        ptr->socket = data->socket;
+        ptr->recvbytes = ptr->sendbytes = 0;
+        ptr->wsabuf.buf = ptr->buf;
+        ptr->wsabuf.len = packetLength + 8;
+        ptr->IOCPInstance = data->IOCPInstance;
+
+        usersListResponsePacket.convToN();
+        memcpy(ptr->wsabuf.buf, usersListResponsePacket.serialized, packetLength + 8);
+        data->sendbytes = packetLength + 8;
+        data->IOCPInstance->send(ptr, 1, 0);
+    }
+}
+
+void ServerManager::processDataPostPacket(DataPostPacket dataPostPacket, IOCPPASSINDATA* data) {
+    Snowflake destID;
+    ::memcpy(&destID.snowflake, dataPostPacket.__data.destId, sizeof(Snowflake));
+
+    std::vector<std::shared_ptr<TCPSocket>> destinationSockets;
+
+    if (userNames_.find(destID) != userNames_.end())
+        destinationSockets.push_back(UID2userSocket_[destID]);
+    else
+        for (auto user : rooms_[destID])
+            destinationSockets.push_back(user.second);
+
+    spdlog::info("Received [{}] from : [{}] to : [{}]",
+        std::string((char*)dataPostPacket.__data.data, dataPostPacket.__data.packetLength - (sizeof(std::uint16_t) * 5)),
+        (std::string)data->socket->remoteAddr,
+        destID.snowflake);
+
+    ResponsePacket responsePacket;
+    responsePacket.__data.packetType = Chattr::PacketCategory::PACKET_RESPONSE;
+    responsePacket.__data.requestType = Chattr::RequestType::DATA;
+    responsePacket.__data.dataType = Chattr::DataType::TEXT;
+    responsePacket.__data.packetLength = sizeof(Chattr::ResponseStatusCode);
+    responsePacket.__data.responseStatusCode = Chattr::ResponseStatusCode::OK;
+
+    responsePacket.convToN();
+    memcpy(data->wsabuf.buf, responsePacket.serialized, 10);
+    data->sendbytes = 10;
+    data->wsabuf.len = 10;
+    data->IOCPInstance->send(data, 1, 0);
+
+    int packetLength = dataPostPacket.__data.packetLength;
+
+    for (auto dest : destinationSockets) {
+
+        Chattr::IOCPPASSINDATA* ptr = new Chattr::IOCPPASSINDATA;
+        ::memset(&ptr->overlapped, 0, sizeof(OVERLAPPED));
+        ptr->socket = dest;
+        ptr->recvbytes = ptr->sendbytes = 0;
+        ptr->wsabuf.buf = ptr->buf;
+        ptr->wsabuf.len = packetLength + 6;
+        ptr->IOCPInstance = data->IOCPInstance;
+
+        dataPostPacket.convToN();
+        memcpy(ptr->wsabuf.buf, dataPostPacket.serialized, packetLength + 6);
+        data->sendbytes = packetLength + 6;
+        data->IOCPInstance->send(ptr, 1, 0);
+    }
+}
+
+void ServerManager::processContinuePacket(ContinuePacket continuePacket, IOCPPASSINDATA* data) {
+}
+
 void ServerManager::registerUser(std::string userName, std::shared_ptr<TCPSocket> sock) {
     std::lock_guard<std::mutex> lock(resourceMutex_);
     Snowflake UID = GenerateID();
diff --git a/impl/Socket/IOCP.cpp b/impl/Socket/IOCP.cpp
index 7f3c9fb..fd1f756 100644
--- a/impl/Socket/IOCP.cpp
+++ b/impl/Socket/IOCP.cpp
@@ -25,6 +25,7 @@ void IOCP::registerSocket(Chattr::IOCPPASSINDATA* data) {
 }
 
 int IOCP::recv(Chattr::IOCPPASSINDATA* data, int bufferCount) {
+	data->event = IOCPEVENT::READ;
 #ifdef _WIN32
 	DWORD recvbytes = 0, flags = 0;
 	return ::WSARecv(data->socket->sock, &data->wsabuf, bufferCount, &recvbytes, &flags, &data->overlapped, NULL);
@@ -37,6 +38,7 @@ int IOCP::recv(Chattr::IOCPPASSINDATA* data, int bufferCount) {
 }
 
 int IOCP::send(Chattr::IOCPPASSINDATA* data, int bufferCount, int __flags) {
+	data->event = IOCPEVENT::WRITE;
 #ifdef _WIN32
 	DWORD sendbytes = 0;
 	return ::WSASend(data->socket->sock, &data->wsabuf, bufferCount, &sendbytes, __flags, &data->overlapped, NULL);
diff --git a/include/Packet/Packet.hpp b/include/Packet/Packet.hpp
index 67ca1cf..e517fad 100644
--- a/include/Packet/Packet.hpp
+++ b/include/Packet/Packet.hpp
@@ -12,8 +12,7 @@ enum class PacketSet {
     ROOMJOINREQUEST,
     ROOMEXITREQUEST,
     USERSLISTREQUEST,
-    DATAPOSTTEXT,
-    DATAPOSTBINARY,
+    DATAPOST,
     CONTINUE,
     RESPONSE,
     LOGINRESPONSE,
diff --git a/include/Socket/IOCP.hpp b/include/Socket/IOCP.hpp
index 4a5dca8..345e598 100644
--- a/include/Socket/IOCP.hpp
+++ b/include/Socket/IOCP.hpp
@@ -26,8 +26,15 @@ namespace Chattr {
 
 class IOCP;
 
+enum class IOCPEVENT {
+    ERR,
+    READ,
+    WRITE
+};
+
 struct IOCPPASSINDATA {
     OVERLAPPED overlapped;
+    IOCPEVENT event;
     std::shared_ptr<TCPSocket> socket;
     char buf[1501];
     std::uint32_t recvbytes;