Compress responses in your Flask app with gzip or brotli.
Flask-Compress allows you to easily compress your Flask application's responses with gzip.
The preferred solution is to have a server (like Nginx) automatically compress the static files for you. If you don't have that option Flask-Compress will solve the problem for you.
How it works
Flask-Compress both adds the various headers required for a compressed response and gzips the response data. This makes serving gzip compressed static files extremely easy.
Internally, every time a request is made the extension will check if it matches one of the compressible MIME types and will automatically attach the appropriate headers.
If you use pip then installation is simply:
$ pip install flask-compress
or, if you want the latest github version:
$ pip install git+git://github.com/colour-science/flask-compress.git
You can also install Flask-Compress via Easy Install:
$ easy_install flask-compress
Flask-Compress is incredibly simple to use. In order to start gzip'ing your Flask application's assets, the first thing to do is let Flask-Compress know about your
flask.Flask application object.
from flask import Flask from flask_compress import Compress app = Flask(__name__) Compress(app)
In many cases, however, one cannot expect a Flask instance to be ready at import time, and a common pattern is to return a Flask instance from within a function only after other configuration details have been taken care of. In these cases, Flask-Compress provides a simple function,
flask_compress.Compress.init_app, which takes your application as an argument.
from flask import Flask from flask_compress import Compress compress = Compress() def start_app(): app = Flask(__name__) compress.init_app(app) return app
In terms of automatically compressing your assets using gzip, passing your
flask.Flask object to the
flask_compress.Compress object is all that needs to be done.
Within your Flask application's settings you can provide the following settings to control the behavior of Flask-Compress. None of the settings are required.
||Set the list of mimetypes to compress here.||
||Specifies the gzip compression level.||
||Specifies the minimum file size threshold for compressing files.||
||Specifies the cache key method for lookup/storage of response data.||
||Specified the backend for storing the cached response data.||
||Specifies if compression should be automatically registered.||
||Compression algorithm used:
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