Basic fastapi setup

Author: quanweilena

.gitignore

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+__pycache__

README.md

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+# FastAPI - demo
+
+Install FastAPI with all the optional dependencies and features:
+```sh
+pip install "fastapi[all]"
+```
+
+Start `uvicorn` with:
+```sh
+uvicorn main:app --reload
+```
+
+Access the API documentation at http://localhost:8000/docs

main.py

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+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}