diff --git a/main.py b/main.py
index 5ec5337..c257c0f 100644
--- a/main.py
+++ b/main.py
@@ -1,5 +1,7 @@
 import aiohttp.web
 
+from .model import Model
+
 routes = aiohttp.web.RouteTableDef()
 
 routes.static('/static', 'static')
@@ -8,13 +10,12 @@ admintoken = "ae33fd8cc4fdcb1ff50ba42ff48046a7"
 
 CLIENT_REGEX = r'/{client:[a-zA-Z0-9]{16}}'
 
-meta_dict = {}
-
 
 def get_client(request: aiohttp.web.Request):
     client = request.match_info.get("client", None)
+    model = request.app['model']
 
-    if not client:
+    if not client or not model.exists_client(client):
         raise aiohttp.web.HTTPBadRequest()
 
     return client
@@ -34,47 +35,48 @@ async def handler(request: aiohttp.web.Request):
     return aiohttp.web.FileResponse('ui.html')
 
 
-async def handle_request(data, client):
-    return "foo" in data
-
-
 @routes.post(CLIENT_REGEX + '/api')
 async def handler(request: aiohttp.web.Request):
     client = get_client(request)
+    model = request.app['model']
+
     data = await request.json()
 
     print(f'{client=} {data=}')
 
-    ok = await handle_request(data, client)
-    if ok:
-        # return aiohttp.web.json_response({"x" : x})
+    try:
+        assert await model.handle_post(data, client)
         return aiohttp.web.Response(status=200)
-    else:
+    except Exception as e:
+        print(e)
         return aiohttp.web.Response(status=400)
 
 
 @routes.get(CLIENT_REGEX + '/ws')
 async def _(request: aiohttp.web.Request):
     client = get_client(request)
+    model = request.app['model']
 
     ws = aiohttp.web.WebSocketResponse(heartbeat=10)
     await ws.prepare(request)
 
-    print(f'model.subscribe({client}, ws)')
+    print(f'[WS] client {client} connected, {ws=}')
+    model.subscribe(client, ws)
 
     async for msg in ws:
-        print(f'[WS] client sent {msg=}')
+        print(f'[WS] incoming message from client {client}, {ws=}, {msg=}')
 
-    print(f'model.unsubscribe(ws)')
+    print(f'[WS] client {client} disconnected, {ws=}')
+    model.unsubscribe(ws)
 
     return ws
 
 
 @routes.get(f"/api/{admintoken}")
 async def handler(request: aiohttp.web.Request):
-    del request  # unused
+    model = request.app['model']
 
-    return aiohttp.web.json_response(meta_dict)
+    return aiohttp.web.json_response(model.sessions)
 
 
 @routes.get('/')
@@ -87,5 +89,8 @@ async def handler(request):
 if __name__ == '__main__':
     app = aiohttp.web.Application()
     app.add_routes(routes)
+
+    app['model'] = Model()
+
     aiohttp.web.run_app(app, port=42042)
     print("should save state")