Serving static files in FastAPI - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of serving static files in a FastAPI application?

Serving static files allows your FastAPI app to deliver files like images, CSS, and JavaScript directly to the browser, making your web pages look and behave properly.

beginner

How do you mount a directory to serve static files in FastAPI?

Use the `app.mount()` method with `StaticFiles(directory='path')` to tell FastAPI where your static files live and under which URL path they should be available.

beginner

Which FastAPI import is required to serve static files?

You need to import `StaticFiles` from `fastapi.staticfiles` to serve static files.

beginner

What URL path is commonly used to serve static files in FastAPI?

A common URL path is `/static`, so files inside your static folder are accessed like `/static/filename.ext`.

beginner

What happens if you try to access a static file that does not exist in FastAPI?

FastAPI will return a 404 Not Found error because the file is missing.

Which FastAPI class is used to serve static files?

A StaticFiles

B FileResponse

C HTMLResponse

D FileServer

StaticFiles is the class designed to serve static files like images, CSS, and JS.

How do you tell FastAPI where your static files are stored?

A Using app.mount() with StaticFiles(directory='path')

B Using app.include_router()

C Using app.add_middleware()

D Using app.static_path()

app.mount() with StaticFiles(directory='path') mounts the static folder to a URL path.

If you mount static files at '/static', how do you access 'logo.png' inside that folder?

A /files/logo.png

B /logo.png

C /static/logo.png

D /assets/logo.png

Files are accessed by combining the mount path and the file name.

What HTTP status code does FastAPI return if a static file is missing?

A 500 Internal Server Error

B 200 OK

C 403 Forbidden

D 404 Not Found

A missing file results in a 404 Not Found error.

Which import is necessary to serve static files in FastAPI?

A from fastapi.responses import StaticFiles

B from fastapi.staticfiles import StaticFiles

C from fastapi.middleware import StaticFiles

D from fastapi.static import StaticFiles

StaticFiles is imported from fastapi.staticfiles.

Explain how to serve static files in a FastAPI app step-by-step.

Think about telling FastAPI where your files are and how users get them.

Describe what happens when a user requests a static file in FastAPI.

Consider the journey from request to response.