add missing function app

function_app.py

@@ -0,0 +1,32 @@
+import json
+import os
+import azure.functions as func
+import fastapi
+from api import router, index_router, signalr_router
+from api import utils
+from api.schemas import QueueCompletion
+
+
+fastapi_app = fastapi.FastAPI(
+    title="Tiny LLMs API",
+    description="API for Tiny (Large) Language Models.",
+    version="0.1.0",
+    docs_url="/api/docs",
+    redoc_url=None,
+)
+
+
+fastapi_app.include_router(router, prefix="/api/completions", tags=["Completions"])
+fastapi_app.include_router(signalr_router, prefix="/api", tags=["SignalR"])
+fastapi_app.include_router(index_router, tags=["Index"])
+
+app = func.AsgiFunctionApp(app=fastapi_app, http_auth_level=func.AuthLevel.ANONYMOUS)
+
+
+@app.queue_trigger(
+    arg_name="msg", queue_name="inputqueue", connection="", max_dequeue_count=1
+)
+async def run(msg: func.QueueMessage) -> None:
+    """Run the completion command. Triggered by a message in the inputqueue."""
+    completion = QueueCompletion(**json.loads(msg.get_body().decode("utf-8")))
+    await utils.run_subprocess(completion.command, completion.connection_id)