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Understanding the Differences between aiohttp.ClientSession().post and requests.post
When working with web APIs, especially those that utilize asynchronous requests like RESTful APIs, it’s easy to get confused about which library to use: aiohttp.clientSession().post or requests.post(). In this article, we’ll explore the differences between these two approaches and help you resolve issues when encountering different responses from servers.
Request Methods: aiohttp.ClientSession().post vs requests.post
When creating a request using ClientSession, it is essential to understand that aiohttp is an asynchronous library. As such, requests are sent asynchronously, allowing the client to continue executing other tasks without blocking. This is where requests.post() comes into play.
Here’s how you would use both approaches:
aiohttp.ClientSession().post
import asyncio
from aiohttp import ClientSession
async def main():
async with ClientSession() as session:
url = "
data = {"id":1, "symbol":"BTC-USDT"}
async with session . post ( url , json = data ) as response :
print ( response . status )
main()
requests.post()
import requests
url = "
data = {"id":1, "symbol":"BTC-USDT"}
response = requests . post ( url , json = data )
print ( response . status_code )
As you can see, requests.post() returns a Response object with a status code (e.g., 200 for successful requests). On the other hand, aiohttp.ClientSession().post() returns an asynchronous response object, which is then processed using the async with statement.
Differences in Response Handling
Now that you’ve seen how both approaches handle responses, let’s discuss the differences:
- In
requests.post(), the client continues executing other tasks while waiting for the server to respond. The main thread waits until all requests are complete and then reports the status code.
- In
aiohttp.ClientSession().post(), the client is blocked by the synchronous operation, waiting for a response from the server.
Synchronous Requests
When working with synchronous APIs that block the caller until a response is received (e.g., authentication or database queries), it is essential to use asynchronous approaches such as requests.post() and aiohttp.ClientSession().post() to avoid blocking your main thread.
In the context of Binance Exchange SPI, you may encounter issues due to synchronous requests not allowing for proper data processing. This is where asynchronous APIs shine, enabling you to perform other tasks while waiting for server responses.
Best Practices
To ensure seamless interactions with RESTful APIs:
- Use asynchronous approaches:
aiohttp.ClientSession().postandrequests.post()are better suited for asynchronous requests.
- Block non-essential operations
: Avoid blocking the main thread on synchronous API calls whenever possible, as they can lead to performance issues and other problems.
By following these guidelines and understanding the differences between aiohttp.ClientSession().post and requests.post(), you will be well-equipped to tackle your Binance Exchange SPI development projects efficiently.