treqvsnestful
treq is a Python library for making HTTP requests that provides a simple, convenient API for interacting with web services. It is inspired byt the popular requests library, but powered by Twisted asynchronous engine which allows promise based concurrency.
treq provides a simple, high-level API for making HTTP requests, including methods for GET, POST, PUT, DELETE, etc. It also allows for easy handling of JSON data, automatic decompression of gzipped responses, and connection pooling.
treq is a lightweight library and it's easy to use, it's a good choice for small to medium-sized projects where ease of use is more important than performance.
In web scraping treq isn't commonly used as it doesn't support HTTP2 but it's the only Twisted based HTTP client. treq is also based on callback/errback promises (like Scrapy) which can be easier to understand and maintain compared to asyncio's corountines.
Nestful is a Ruby library for making HTTP requests. It is designed to provide a simple, easy-to-use interface for making requests and handling responses. Nestful is often used for making requests to RESTful APIs.
One of the main features of Nestful is its ability to automatically parse JSON and XML responses and return them as Ruby objects. This allows developers to easily access the data returned by an API without having to manually parse the response.
Netful is aimed at interacting with rest APIs and provides a convenient interface (see example below)
Highlights
Example Use
from twisted.internet import reactor
from twisted.internet.task import react
from twisted.internet.defer import ensureDeferred
import treq
# treq can be used with twisted's reactor with callbacks
response_deferred = treq.get(
"http://httpbin.org/get"
)
# or POST
response_deferred = treq.post(
"http://httpbin.org/post",
json={"key": "value"}, # JSON
data={"key": "value"}, # Form Data
)
# add callback or errback
def handle_response(response):
print(response.code)
response.text().addCallback(lambda body: print(body))
def handle_error(failure):
print(failure)
# this callback will be called when request completes:
response_deferred.addCallback(handle_response)
# this errback will be called if request fails
response_deferred.addErrback(handle_error)
# this will be called if request completes or fails:
response_deferred.addBoth(lambda _: reactor.stop()) # close twisted once finished
if __name__ == '__main__':
reactor.run()
#Note that treq can also be used with async/await:
async def main():
# content reads response data and get sends a get request:
print(await treq.content(await treq.get("https://example.com/")))
if __name__ == '__main__':
react(lambda reactor: ensureDeferred(main()))
</div>
<div class="lib-example" markdown>
```ruby
require 'nestful'
# GET request
response = Nestful.get('http://httpbin.org/get')
puts response.body
puts response.code
puts response.headers
# POST request
response = Nestful.post(
'http://httpbin.org/post',
:format => :json, :payload => { :title => 'foo', :body => 'bar', :userId => 1 }
)
puts response.body
# establish interface to a specific API
class Charge < Nestful::Resource
endpoint 'https://api.stripe.com/v1/charges'
options :auth_type => :bearer, :password => 'sk_bar'
def self.all
self.new(get)
end
def self.find(id)
self.new(get(id))
end
def refund
post(:refund)
end
end
Charge.all #=> []
Charge.find('ch_bar').amount