Create app.py

app.py

@@ -0,0 +1,34 @@
+from llm_api import openai_chatbot_chain
+import chainlit as cl
+
+#|--------------------------------------------------------------------------|
+#|                            On Boarding                                   |
+#|--------------------------------------------------------------------------|
+@cl.on_chat_start
+async def on_chat_start():
+    cl.user_session.set(
+        "message_history",
+        [{"role": "system", "content": "You are a helpful assistant."}],
+    )
+    app_user = cl.user_session.get("user")
+    await cl.Message(f"Hello User").send()
+
+#|--------------------------------------------------------------------------|
+#|                               Chat                                       |
+#|--------------------------------------------------------------------------|
+@cl.on_message
+async def main(user_input: cl.Message):
+    message_history = cl.user_session.get("message_history")
+    message_history.append({"role": "user", "content": user_input.content})
+
+    llm_output = cl.Message(content="")
+    await llm_output.send()
+
+    stream = await openai_chatbot_chain(message_history)
+
+    async for part in stream:
+        if token := part.choices[0].delta.content or "":
+            await llm_output.stream_token(token)
+
+    message_history.append({"role": "assistant", "content": llm_output.content})
+    await llm_output.update()