diff --git a/app.py b/app.py
index 315053e..99c5a67 100644
--- a/app.py
+++ b/app.py
@@ -404,7 +404,7 @@ def send_message(user_id):
                 400
             )
         params = request.json
-
+        u_id = current_user.get_id()
         if "content" not in params:
             return make_response(
                 jsonify(
@@ -415,7 +415,7 @@ def send_message(user_id):
 
         with app.app_context():
             message = PrivateMessage(
-                from_id=current_user.get_id(),
+                from_id=u_id,
                 to_id=user_id,
                 content=params.get("content"),
             )
@@ -423,6 +423,10 @@ def send_message(user_id):
                 message.attachment = params.get("attachment")
             db.session.add(message)
             db.session.commit()
+        u_id = current_user.get_id()
+        m = PrivateMessagesRead.query.filter_by(from_user_id=u_id).filter_by(to_user_id=user_id).first()
+        m.readTill = int(time.time() * 1000) + 1
+        db.session.commit()
         return jsonify(
             response=True
         )
@@ -823,6 +827,40 @@ def send_group_message(chat_id):
         )
 
 
+@app.route('/api/chats', methods=["GET"])
+@login_required
+def get_info_about_chat(chat_id):
+    chat = GroupChat.query.all()
+    json_of_users = {}
+    for i in chat:
+        json_of_users.update({"id": i.id, "name": i.name})
+    return json.dumps(json_of_users)
+
+
+@app.route('/api/group_chats/read_till/<chat_id>', methods=["POST"])
+@login_required
+def gr_read_till(chat_id):
+    if request.json:
+        data = request.json
+        if "date" in data:
+            u_id = current_user.get_id()
+            chat_member = ChatMember.query.filter_by(user_id=u_id).filter_by(groupchat_id=chat_id).first()
+            chat_member.readtill = data["date"]
+            db.session.commit()
+            return make_response(jsonify(response=True), 200)
+        else:
+            return make_response(
+                jsonify(
+                    response=False
+                ), 404
+            )
+    return make_response(
+        jsonify(
+            response=False
+        ), 404
+    )
+
+
 @app.route('/api/chat/<chat_id>')
 @login_required
 def get_chat_member(chat_id):
@@ -839,6 +877,23 @@ def get_chat_member(chat_id):
         ), 404)
 
 
+@app.route("/api/chat/get_chat_member/<chat_id>/<user_id>", methods=["GET"])
+def get_mem(chat_id, user_id):
+    member = ChatMember.query.filter((ChatMember.groupchat_id == chat_id) & (ChatMember.user_id == user_id)).first()
+    if member is not None:
+        return jsonify(
+            id=member.id,
+            user_id=member.user_id,
+            readtill=member.readtill,
+            isAdmin=member.isAdmin,
+            isRemove=member.isRemoved,
+            groupchat_id=member.groupchat_id
+        )
+    else:
+        return make_response(jsonify(
+            response=False
+        ), 404)
+
 
 @app.route('/api/chats/<chat_id>/<page>', methods=["GET"])
 @login_required
diff --git a/models.py b/models.py
index 82469f7..75bd21f 100644
--- a/models.py
+++ b/models.py
@@ -54,7 +54,7 @@ class GroupMessage(db.Model):
     content = db.Column(db.String, unique=False, nullable=False)
     isDeleted = db.Column(db.Boolean, unique=False, nullable=False, default=False)
     timestamp = db.Column(db.DateTime, unique=False, nullable=False, default=datetime.now)
-    attachment = db.Column(db.LargeBinary, unique=False, nullable=True)
+    attachment = db.Column(db.String, unique=False, nullable=True)
 
     member = db.relationship('ChatMember')
     groupchat = db.relationship('GroupChat')
diff --git a/send_email.py b/send_email.py
index 7246164..47df179 100644
--- a/send_email.py
+++ b/send_email.py
@@ -9,6 +9,7 @@
 
 load_dotenv('/app/backend/.env', verbose=True, override=True)
 
+
 def send_email(destination_email, code):
     asyncio.run(send_generic_email(destination_email, "Hi there", f"Your code is {code}"))