slowapi | A rate limiter for Starlette and FastAPI | Reactive Programming library
kandi X-RAY | slowapi Summary
kandi X-RAY | slowapi Summary
A rate limiting library for Starlette and FastAPI adapted from flask-limiter. Note: this is alpha quality code still, the API may change, and things may fall apart while you try it. The documentation is on read the docs.
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Top functions reviewed by kandi - BETA
- Dispatch a request
- Check request limits
- Inject headers into response
- Evaluate limits
- Determine the retry time
- Check if the backend should be checked
- Sets the request
- Handler for rate limit exceeded
slowapi Key Features
slowapi Examples and Code Snippets
Community Discussions
Trending Discussions on slowapi
QUESTION
I'm having a problem with SlowAPI. All requests are limited according to the middleware, but I cannot manage to jointly limit all requests under the path /schools/
My code:
...ANSWER
Answered 2022-Feb-19 at 09:02Define application_limits
when instantiating the Limiter
class, as shown below. As per the documentation,
application_limits: a variable list of strings or callables returning strings for limits that are applied to the entire application (i.e., a shared limit for all routes)
Thus, the below would apply a shared limit to all /schools/*
routes, as well as any other route that might be in your application (e.g., /testpath/*
, /some-other-route/
, and so on), meaning that, only two requests per 5 seconds would go through by each client (regardless of the endpoint they would call).
QUESTION
I'm having a problem. When I make too many requests from browser or postman rightly the API (slowapi) blocks me as I have correctly set, but if I make a request via AJAX and jquery's $ .getJSON, the APIs don't block me. How can I solve? My code (extracted from the complete code):
...ANSWER
Answered 2022-Feb-18 at 21:09Tested your code and works fine, as long as you replace the closing double quote ”
with a straight double quote "
in the getJSON()
method:
QUESTION
Consider the following two snippets where first wraps scalaj-http requests with Future
, whilst second uses async-http-client
Sync client wrapped with Future using global EC
...ANSWER
Answered 2020-Aug-04 at 00:00Future#sequence should execute the HTTP requests in parallel?
First of all, Future#sequence
doesn't execute anything. It just produces a future that completes when all parameters complete.
Evaluation (execution) of constructed futures starts immediately If there is a free thread in the EC. Otherwise, it simply submits it for a sort of queue.
I am sure that in the first case you have single thread execution of futures.
println(scala.concurrent.ExecutionContext.Implicits.global) -> parallelism = 6
Don't know why it is like this, it might that other 5 thread is always busy for some reason. You can experiment with explicitly created new EC with 5-10 threads.
The difference with the Async case that you don't create a future by yourself, it is provided by the library, that internally don't block the thread. It starts the async process, "subscribes" for a result, and returns the future, which completes when the result will come.
Actually, async lib could have another EC internally, but I doubt.
Btw, Futures are not supposed to contain slow/io/blocking evaluations without blocking
. Otherwise, you potentially will block the main thread pool (EC) and your app will be completely frozen.
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