Aioreq is a Python asynchronous HTTP client library. It is built on top of TCP sockets and implements the HTTP protocol entirely on his own.
From pypi
$ pip install aioreq
From GitHub
$ git clone https://github.com/karosis88/aioreq
$ pip install ./aioreq
Aioreq
can be used as a Python library or as a command-line tool to make HTTP requests.
>>> import aioreq
>>> response = aioreq.get("http://127.0.0.1:7575/")
>>> response.status
200
>>> content_type = response.headers["content-type"] # Case insensitive
>>> response.content
b'Hello World'
or in async context
>>> import asyncio
>>>
>>> async def main():
... async with aioreq.Client() as client:
... response = await client.get("http://127.0.0.1:7575")
... return response
>>> asyncio.run(main())
<Response 200 OK>
Aioreq
cli tools are very similar to curl, so if you've used curl before, you should have no trouble.
$ aioreq http://127.0.0.1:7575/cli_doc
Hello World
When performing HTTP requests, there are a few options available.
--method -X
Specify HTTP method--verbose -v
Show HTTP request headers--include -i
Include HTTP response headers--output -o
Output file--headers -H
Send custom headers--data -d
HTTP POST data--user-agent -A
Set User-Agent header
Here are some examples of requests.
$ aioreq http://127.0.0.1:7575
$ aioreq http://127.0.0.1:7575/cli_doc -d "Bob" -X POST
User Bob was created!
$ aioreq http://127.0.0.1:7575/cli_doc -o /dev/null
$ aioreq http://127.0.0.1:7575/cli_doc -v -H "custom-header: custom-value" \
"second-header: second-value"
========REQUEST HEADERS========
user-agent: python/aioreq
accept: */*
custom-header: custom-value
second-header: second-value
accept-encoding: gzip; q=1, deflate; q=1
Hello
Aioreq now supports 'middleware' power.
Aioreq provides default middlewares to each client. We can see that middlewares by importing 'default_middlewares' variable.
>>> import aioreq
>>> aioreq.middlewares.default_middlewares
('RetryMiddleWare', 'RedirectMiddleWare', 'CookiesMiddleWare', 'DecodeMiddleWare', 'AuthenticationMiddleWare')
The first item on this list represents the first middleware that should handle our request (i.e. the closest middleware to our client), while the last index represents the closest middleware to the server.
We can pass our modified middlewares tuple to the Client to override the default middlewares.
>>> client = aioreq.Client(middlewares=aioreq.middlewares.default_middlewares[2:])
This client will no longer redirect or retry responses.
Also, because aioreq stores middlewares in Client objects as linked lists, we can simply change the head of that linked list to skip the first middleware.
>>> client = aioreq.Client()
>>> client.middlewares.__class__.__name__
'RetryMiddleWare'
>>>
>>> client.middlewares = client.middlewares.next_middleware
>>> client.middlewares.__class__.__name__
'RedirectMiddleWare'
>>>
>>> client.middlewares = client.middlewares.next_middleware
>>> client.middlewares.__class__.__name__
'CookiesMiddleWare'
or
>>> client = aioreq.Client()
>>> client.middlewares = client.middlewares.next_middleware.next_middleware
>>> # alternative for client = aioreq.Client(middlewares=aioreq.middlewares.default_middlewares[2:])
All 'aioreq' middlewares must be subclasses of the class middlewares.MiddleWare
MiddleWare below would add 'test-md' header if request domain is www.example.com
>>> import aioreq
>>>
>>> class CustomMiddleWare(aioreq.middlewares.MiddleWare):
... async def process(self, request, client):
... if request.host == 'www.example.com':
... request.headers['test_md'] = 'test'
... return await self.next_middleware.process(request, client)
...
>>> client = aioreq.Client()
>>> client.middlewares = CustomMiddleWare(next_middleware=client.middlewares)
Our CustomMiddleWare will now be the first middleware (i.e. closest to the client). Because 'aioreq' middlewares are stored as linked lists, this pattern works (i.e. same as linked list insert method).
Alternatively, we can alter the list of middlewares that the client receives.
>>> client = aioreq.Client(middlewares = (CustomMiddleWare, ) + aioreq.middlewares.default_middlewares)
>>> client.middlewares.__class__.__name__
'CustomMiddleWare'
Aioreq supports three attributes related to this topic.
check_hostname
Checks whether the peer cert hostname matches the server domain.verify_mode
Specifies whether the server certificate must be verified.keylog_filename
File location for dumping private keys
You can also set the environment variable SSLKEYLOGFILE
instead of specifying keylog_filename
.
You can use a tool like wireshark
to decrypt your HTTPS
traffic if you have a file with the private keys.
Example:
$ export SSLKEYLOGFILE=logs
Then just run aioreq.
$ aioreq https://example.com
$ ls -l
total 8
-rw-r--r-- 1 user user 406 Dec 5 17:19 logs
Now, the 'logs' file contains keylogs that can be used to decrypt your TLS/SSL traffic with a tool such as 'wireshark'.
Here are a few examples of how to manage the SSL context for your requests.
import aioreq
dont_verify_cert = aioreq.get("https://example.com", verify_mode=False)
verify_and_dump_logs = aioreq.get("https://example.com", verify_mode=True, keylog_filename="logs")
default_configs = aioreq.get("https://example.com", verify_mode=True, check_hostname=True)
If the auth
parameter is included in the request, Aioreq will handle authentication.
There are two types of authorization that aioreq can handle.
- Digest Authorization
- Basic Authorization
If the incoming response status code is 401 and the header contains www-authorization
, aioreq
will attempt each of the schemes until authorization is complete.
>>> import aioreq
>>> import asyncio
>>> async def send_req():
... async with aioreq.Client() as cl:
... return await cl.get('http://httpbin.org/basic-auth/foo/bar', auth=('foo', 'bar'))
>>>
Parameter auth
should be a tuple with two elements: login and password.
Authentication is enabled by AuthenticationMiddleWare
, so exercise caution when managing middlewares manually.
In this benchmarks, we compare aioreq
and httpx
during 999 asynchronous requests, without caching
You can run these tests on your local machine; the directory `aioreq/benchmarks
contains all of the required modules.
$ cd benchmarks
$ ./run_tests
Benchmarks
---------------------------
aioreq benchmark
Total time: 2.99
---------------------------
httpx benchmark
Total time: 7.60
Aioreq support basic features to work with HTTP/1.1.
More functionality will be available in future releases.
This is the latest version features.
- Keep-Alive (Persistent Connections)
- Middlewares
- Keylogs
- Authentication
- Cookies
- Automatic accepting and decoding responses. Using
Accept-Encoding
header - HTTPS support, TLS/SSL Verification
- Request Timeouts