HTTP client with HTTPX

HTTPX is a modern HTTP client (sync and async). Install it after you set up your virtual environment and dependencies (Virtual environments and packages).

GET request

import httpx

def fetch_status(url: str) -> int:
    response = httpx.get(url, timeout=10.0)
    response.raise_for_status()
    return response.status_code

Reading JSON

data = response.json()
# data is usually a dict or list

Error handling

try:
    r = httpx.get("http://127.0.0.1:8000/ping", timeout=5.0)
    r.raise_for_status()
    print(r.json())
except httpx.HTTPError as exc:
    print("HTTP error:", exc)

Implement

1. Start your FastAPI app locally (later chapter) or use https://httpbin.org/get for a smoke test.
2. Write a script probe.py that performs a GET, prints status code and JSON (if any).
3. Commit and push.