diff --git a/FastAPIApp/__init__.py b/FastAPIApp/__init__.py
new file mode 100644
index 0000000..37364f0
--- /dev/null
+++ b/FastAPIApp/__init__.py
@@ -0,0 +1,5 @@
+import fastapi
+
+app = fastapi.FastAPI()
+
+# TODO: Add setup or configuration specifications for the application here
diff --git a/host.json b/host.json
index 87b3e39..555bf5e 100644
--- a/host.json
+++ b/host.json
@@ -10,7 +10,7 @@
   },
   "extensionBundle": {
     "id": "Microsoft.Azure.Functions.ExtensionBundle",
-    "version": "[3.*, 4.0.0)"
+    "version": "[2.*, 4.0.0)"
   },
   "concurrency": {
     "dynamicConcurrencyEnabled": false,
@@ -18,6 +18,10 @@
   },
   "functionTimeout": "00:10:00",
   "extensions": {
+    "http": 
+    {
+        "routePrefix": ""
+    },
     "queues": {
         "maxPollingInterval": "00:00:30",
         "visibilityTimeout" : "00:00:30",
diff --git a/requirements.txt b/requirements.txt
index 76ea8eb..84e8910 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,9 +3,10 @@
 # Manually managing azure-functions-worker may cause unexpected issues
 
 azure-cosmos
-azure-functions==1.12.0
+azure-functions>=1.12.0
 azure-identity
 azure-storage-blob==12.14.1
+fastapi
 requests
 bs4
 xxhash
\ No newline at end of file
diff --git a/wrapper-function/__init__.py b/wrapper-function/__init__.py
new file mode 100644
index 0000000..c440ec1
--- /dev/null
+++ b/wrapper-function/__init__.py
@@ -0,0 +1,21 @@
+import logging
+import azure.functions as func
+from FastAPIApp import app  # Main API application
+
+
+@app.get("/sample")
+async def index():
+    return {
+        "info": "Try /hello/K for parameterized route.",
+    }
+
+
+@app.get("/hello/{name}")
+async def get_name(name: str):
+    return {
+        "name": name,
+    }
+
+
+async def main(req: func.HttpRequest, context: func.Context) -> func.HttpResponse:
+    return await func.AsgiMiddleware(app).handle_async(req, context)
diff --git a/wrapper-function/function.json b/wrapper-function/function.json
new file mode 100644
index 0000000..60ae420
--- /dev/null
+++ b/wrapper-function/function.json
@@ -0,0 +1,21 @@
+{
+  "scriptFile": "__init__.py",
+  "bindings": [
+    {
+      "authLevel": "anonymous",
+      "type": "httpTrigger",
+      "direction": "in",
+      "name": "req",
+      "methods": [
+        "get",
+        "post"
+      ],
+      "route": "{*route}"
+    },
+    {
+      "type": "http",
+      "direction": "out",
+      "name": "$return"
+    }
+  ]
+}