sanic/docs/sanic/static_files.md

Static Files

Static files and directories, such as an image file, are served by Sanic when registered with the app.static method. The method takes an endpoint URL and a filename. The file specified will then be accessible via the given endpoint.

from sanic import Sanic
from sanic.blueprints import Blueprint

app = Sanic(__name__)

# Serves files from the static folder to the URL /static
app.static('/static', './static')
# use url_for to build the url, name defaults to 'static' and can be ignored
app.url_for('static', filename='file.txt') == '/static/file.txt'
app.url_for('static', name='static', filename='file.txt') == '/static/file.txt'

# Serves the file /home/ubuntu/test.png when the URL /the_best.png
# is requested
app.static('/the_best.png', '/home/ubuntu/test.png', name='best_png')

# you can use url_for to build the static file url
# you can ignore name and filename parameters if you don't define it
app.url_for('static', name='best_png') == '/the_best.png'
app.url_for('static', name='best_png', filename='any') == '/the_best.png'

# you need define the name for other static files
app.static('/another.png', '/home/ubuntu/another.png', name='another')
app.url_for('static', name='another') == '/another.png'
app.url_for('static', name='another', filename='any') == '/another.png'

# also, you can use static for blueprint
bp = Blueprint('bp', url_prefix='/bp')
bp.static('/static', './static')

# servers the file directly
bp.static('/the_best.png', '/home/ubuntu/test.png', name='best_png')
app.blueprint(bp)

app.url_for('static', name='bp.static', filename='file.txt') == '/bp/static/file.txt'
app.url_for('static', name='bp.best_png') == '/bp/test_best.png'

app.run(host="0.0.0.0", port=8000)