python requests asyncio

Python Requests Asyncio

Python Requests is a popular library used for making HTTP requests in Python. It provides a simple and easy-to-use API, making it one of the most preferred libraries for web scraping, testing APIs, and interacting with web services. On the other hand, asyncio is a Python library to write concurrent code using the async/await syntax. It is designed to be fast and highly scalable, making it suitable for network programming and high-performance web services.

Using Python Requests with asyncio

While Python Requests is a synchronous library, we can use it with asyncio to make async HTTP requests. This can be achieved using the aiohttp library, which is an asynchronous HTTP client/server for asyncio. We can use it to make HTTP requests asynchronously with Python Requests syntax.

import asyncio
import aiohttp
import requests

async def fetch(session, url):
    async with session.get(url) as response:
        return await response.text()

async def main():
    async with aiohttp.ClientSession() as session:
        html = await fetch(session, '')

if __name__ == '__main__':
    loop = asyncio.get_event_loop()

In the code above, we define an async function fetch() that takes a session and URL as arguments. It uses the session.get() method to make an asynchronous HTTP request and returns the text content of the response using response.text() method.

We then define another async function main(), which creates an aiohttp ClientSession and calls the fetch() function with the session and URL as arguments. We then use the asyncio.get_event_loop() method to get the event loop and run the main() function with it.

By using aiohttp with Python Requests, we can make async HTTP requests in Python and take advantage of the simplicity and ease-of-use of the Requests library.