Flask-Limiter

Flask-Limiter provides rate limiting features to flask routes. It has support for a configurable backend for storage with current implementations for in-memory, redis and memcache.

Quickstart

Add the rate limiter to your flask app. The following example uses the default in memory implementation for storage.

from flask import Flask
from flask_limiter import Limiter

app = Flask(__name__)
limiter = Limiter(app, global_limits=["2 per minute", "1 per second"])

@app.route("/slow")
@limiter.limit("1 per day")
def slow():
    return "24"

@app.route("/fast")
def fast():
    return "42"

@app.route("/ping")
@limiter.exempt
def ping():
    return 'PONG'

app.run()

Test it out. The fast endpoint respects the global rate limit while the slow endpoint uses the decorated one. ping has no rate limit associated with it.

$ curl localhost:5000/fast
42
$ curl localhost:5000/fast
42
$ curl localhost:5000/fast
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<title>429 Too Many Requests</title>
<h1>Too Many Requests</h1>
<p>2 per 1 minute</p>
$ curl localhost:5000/slow
24
$ curl localhost:5000/slow
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<title>429 Too Many Requests</title>
<h1>Too Many Requests</h1>
<p>1 per 1 day</p>
$ curl localhost:5000/ping
PONG
$ curl localhost:5000/ping
PONG
$ curl localhost:5000/ping
PONG
$ curl localhost:5000/ping
PONG

Read the docs

History

0.3.0 2014-02-19

improved logging support for multiple handlers
allow callables to be passed to Limiter.limit decorator to dynamically load rate limit strings.
add a global kill switch in flask config for all rate limits.
Bug fixes
- default key function for rate limit domain wasn’t accounting for X-Forwarded-For header.

0.2.2 2014-02-18

add new decorator to exempt routes from limiting.
Bug fixes
- versioneer.py wasn’t included in manifest.
- configuration string for strategy was out of sync with docs.

0.2.1 2014-02-15

python 2.6 support via counter backport
source docs.

0.2 2014-02-15

Implemented configurable strategies for rate limiting.
Bug fixes
- better locking for in-memory storage
- multi threading support for memcached storage

0.1.1 2014-02-14

Bug fixes
- fix initializing the extension without an app
- don’t rate limit static files

0.1.0 2014-02-13

first release.

Metadata

Release files for Flask-Limiter 0.3.0

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for Flask-Limiter 0.3.0
File	Size	Uploaded
Flask-Limiter-0.3.0.tar.gz	83.1 kB	Feb 19, 2014	Details

Built distribution (wheel)

Table of built distributions (wheels) for Flask-Limiter 0.3.0
File	Interpreter	ABI	Platform	Reset
Flask_Limiter-0.3.0-py2.7.egg 49.1 kB Feb 19, 2014	Legacy Egg format	-	-	Details

Total release size: 132.2 kB

Release files / Flask-Limiter-0.3.0.tar.gz

Download URL	Flask-Limiter-0.3.0.tar.gz
Size	83.1 kB
Tags	Source
SHA-256 checksum How to use checksums	`ab7153ef2d016e0bb0a7d2a6917bf2aa9559bd91bf18e181e34612398a9e5b15`
BLAKE2b-256 checksum How to use checksums	`64e1470460a1fafe83927fa4789ed9c31b9376f1eccf1a01a8b7c2c0e75238a4`
Upload date	Feb 19, 2014
Uploaded using Trusted Publishing? What is trusted publishing?	No

Release files / Flask_Limiter-0.3.0-py2.7.egg

Download URL	Flask_Limiter-0.3.0-py2.7.egg
Size	49.1 kB
Tags	Egg
SHA-256 checksum How to use checksums	`1a3e73a11c99c21cfe717ff1c77ba92b5249f80d58b11a5372e1fc3415c8b794`
BLAKE2b-256 checksum How to use checksums	`3531b19ce90d3b5ebb7ac57ca212eb1138bea4668d7befbf4648fccd47b3d8c9`
Upload date	Feb 19, 2014
Uploaded using Trusted Publishing? What is trusted publishing?	No