diff --git a/test-server/README.md b/test-server/README.md
index 8b57ef08..abdd2b0f 100644
--- a/test-server/README.md
+++ b/test-server/README.md
@@ -32,3 +32,11 @@ or `C:\> <venv>\Scripts\activate.bat` where `<venv>` is the same as `c:\path\to\
 ```bash
 $ pip install -r requirements.txt
 ```
+
+- Run it
+
+```bash
+$ fastapi dev main.py
+```
+
+You can then access the documentation by going to [ http://localhost:8000/docs](http://localhost:8000/docs).
diff --git a/test-server/main.py b/test-server/main.py
new file mode 100644
index 00000000..30d4a452
--- /dev/null
+++ b/test-server/main.py
@@ -0,0 +1,15 @@
+from typing import Union
+
+from fastapi import FastAPI
+
+app = FastAPI()
+
+
+@app.get("/")
+def read_root():
+    return {"Hello": "World"}
+
+
+@app.get("/items/{item_id}")
+def read_item(item_id: int, q: Union[str, None] = None):
+    return {"item_id": item_id, "q": q}