84 lines
2.9 KiB
Markdown
84 lines
2.9 KiB
Markdown
# Static Files
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Static files and directories, such as an image file, are served by Sanic when
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registered with the `app.static()` method. The method takes an endpoint URL and a
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filename. The file specified will then be accessible via the given endpoint.
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```python
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from sanic import Sanic
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from sanic.blueprints import Blueprint
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app = Sanic(__name__)
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# Serves files from the static folder to the URL /static
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app.static('/static', './static')
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# use url_for to build the url, name defaults to 'static' and can be ignored
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app.url_for('static', filename='file.txt') == '/static/file.txt'
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app.url_for('static', name='static', filename='file.txt') == '/static/file.txt'
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# Serves the file /home/ubuntu/test.png when the URL /the_best.png
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# is requested
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app.static('/the_best.png', '/home/ubuntu/test.png', name='best_png')
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# you can use url_for to build the static file url
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# you can ignore name and filename parameters if you don't define it
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app.url_for('static', name='best_png') == '/the_best.png'
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app.url_for('static', name='best_png', filename='any') == '/the_best.png'
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# you need define the name for other static files
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app.static('/another.png', '/home/ubuntu/another.png', name='another')
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app.url_for('static', name='another') == '/another.png'
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app.url_for('static', name='another', filename='any') == '/another.png'
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# also, you can use static for blueprint
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bp = Blueprint('bp', url_prefix='/bp')
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bp.static('/static', './static')
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# servers the file directly
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bp.static('/the_best.png', '/home/ubuntu/test.png', name='best_png')
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app.blueprint(bp)
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app.url_for('static', name='bp.static', filename='file.txt') == '/bp/static/file.txt'
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app.url_for('static', name='bp.best_png') == '/bp/test_best.png'
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app.run(host="0.0.0.0", port=8000)
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```
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> **Note:** Sanic does not provide directory index when you serve a static directory.
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## Virtual Host
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The `app.static()` method also support **virtual host**. You can serve your static files with specific **virtual host** with `host` argument. For example:
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```python
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from sanic import Sanic
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app = Sanic(__name__)
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app.static('/static', './static')
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app.static('/example_static', './example_static', host='www.example.com')
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```
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## Streaming Large File
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In some cases, you might server large file(ex: videos, images, etc.) with Sanic. You can choose to use **streaming file** rather than download directly.
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Here is an example:
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```python
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from sanic import Sanic
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app = Sanic(__name__)
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app.static('/large_video.mp4', '/home/ubuntu/large_video.mp4', stream_large_files=True)
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```
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When `stream_large_files` is `True`, Sanic will use `file_stream()` instead of `file()` to serve static files. This will use **1KB** as the default chunk size. And, if needed, you can also use a custom chunk size. For example:
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```python
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from sanic import Sanic
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app = Sanic(__name__)
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chunk_size = 1024 * 1024 * 8 # Set chunk size to 8KB
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app.static('/large_video.mp4', '/home/ubuntu/large_video.mp4', stream_large_files=chunk_size)
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```
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