> For the complete documentation index, see [llms.txt](https://ultimatewebsolutions.gitbook.io/qa-knowledge-base/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ultimatewebsolutions.gitbook.io/qa-knowledge-base/api-testing-with-python/how-would-you-implement-api-tests-in-python.md).

# How would you implement API tests in Python?

I would typically use `pytest` as the test runner and a library such as `requests` or `httpx` for HTTP communication. I would separate API client functionality from test assertions, use fixtures for authentication and test data, and **validate status codes, response payloads, headers and business rules**.

```python
import requests

def test_get_user():
    response = requests.get(
        "https://api.example.com/users/123"
    )

    assert response.status_code == 200
    assert response.json()["id"] == 123
```
