Flask-Limiter adds rate limiting to Flask applications.
You can configure rate limits at different levels such as:
Application wide global limits per user
Default limits per route
By Blueprints
Flask-Limiter can be configured to fit your application in many ways, including:
Persistance to various commonly used storage backends (such as Redis, Memcached, MongoDB & Etcd) via limits
Any rate limiting strategy supported by limits
Follow the quickstart below to get started or read the documentation for more details.
Quickstart
Install
pip install Flask-LimiterAdd the rate limiter to your flask app
# app.py
from flask import Flask
from flask_limiter import Limiter
from flask_limiter.util import get_remote_address
app = Flask(__name__)
limiter = Limiter(
get_remote_address,
app=app,
default_limits=["2 per minute", "1 per second"],
storage_uri="memory://",
# Redis
# storage_uri="redis://localhost:6379",
# Redis cluster
# storage_uri="redis+cluster://localhost:7000,localhost:7001,localhost:70002",
# Memcached
# storage_uri="memcached://localhost:11211",
# Memcached Cluster
# storage_uri="memcached://localhost:11211,localhost:11212,localhost:11213",
# MongoDB
# storage_uri="mongodb://localhost:27017",
# Etcd
# storage_uri="etcd://localhost:2379",
strategy="fixed-window", # or "moving-window"
)
@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'Inspect the limits using the command line interface
$ FLASK_APP=app:app flask limiter limits
app
├── fast: /fast
│ ├── 2 per 1 minute
│ └── 1 per 1 second
├── ping: /ping
│ └── Exempt
└── slow: /slow
└── 1 per 1 dayRun the app
$ FLASK_APP=app:app flask runTest it out
The fast endpoint respects the default 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
PONG1 maintainer
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distribution
Built Distribution
Filter files by name, interpreter, ABI, and platform.
If you're not sure about the file name format, learn more about wheel file names.
Copy a direct link to the current filters
File details
Details for the file flask_limiter-3.10.0.tar.gz.
File metadata
- Download URL: flask_limiter-3.10.0.tar.gz
- Upload date:
- Size: 301.9 kB
- Tags: Source
- Uploaded using Trusted Publishing? No
- Uploaded via: twine/6.0.1 CPython/3.9.21
File hashes
| Algorithm | Hash digest | |
|---|---|---|
| SHA256 |
4b54cc4f4d254147a78967e58db2e9339f72f7cffb84fbfd1c6fcbf13b198960
|
|
| MD5 |
4d096dda453f6b641eef86be301feb0b
|
|
| BLAKE2b-256 |
52234b1a39d4dceb1c62237ff0b9f2f72fb8ea9cfeb9197c1abc643de6164ce9
|
File details
Details for the file Flask_Limiter-3.10.0-py3-none-any.whl.
File metadata
- Download URL: Flask_Limiter-3.10.0-py3-none-any.whl
- Upload date:
- Size: 28.6 kB
- Tags: Python 3
- Uploaded using Trusted Publishing? No
- Uploaded via: twine/6.0.1 CPython/3.9.21
File hashes
| Algorithm | Hash digest | |
|---|---|---|
| SHA256 |
640ba763e05eb66bad3976d218b57c11c04c21e9ce42d20767975e7369e2ddcd
|
|
| MD5 |
99bdee395aaefde92cdd661cf15f295a
|
|
| BLAKE2b-256 |
d453625696cc170b23b8315d52b4fcdc1b3788f75e7f327c6a09de05efc04ef1
|
