Ethereum SSL Certification Validation Failed with Binance Connector for Python

As a developer building an application to detect pumps and dumps in the cryptocurrency market, I decided to use Binance as my main platform. To facilitate secure communication between my application and the Binance API, I installed the Binance-Connector library using pip3 install binance-connector on my macOS machine.

Installing the Binance Connector

The installation was straightforward: pip3 install binance-connector. The package is well-maintained and easy to use. However, after installing it, I encountered an unexpected issue that prevented my application from connecting to the Binance API using the connector.

SSL Certification Validation Failed

When trying to connect to the Binance API, I noticed that SSL certification validation failed for binance-connector. This error usually occurs when the library is unable to establish a secure connection with the Binance server due to certificate issues. Let’s dive into the details and explore possible solutions.

What is an SSL certificate?

In cryptography, an SSL (Secure Sockets Layer) or TLS (Transport Layer Security) certificate is a digital certificate that verifies the identity of a web application or server. It ensures secure communication between the client and the server by encrypting data in transit. A valid SSL/TLS certificate is essential for establishing trust with the Binance API.

Why did my certificate fail?

There could be several reasons why your SSL certificate validation failed:

• Incorrect or missing certificates: Make sure that your local machine and the Binance server have the correct SSL certificates installed.

• Expired certificate: Check if the certificates have expired or been revoked. You can renew them using tools like Let’s Encrypt or manually update them in your configuration files.

• Server-side certificate issues: The issue could be specific to the Binance server certificate settings or configuration.

Solution: Update certificates and reinstall connector

To resolve this issue, I will update my certificates and reinstall the binance-connector library:

• Update certificates: I replaced my old SSL certificates with new ones using Let’s Encrypt. This ensures that both my local machine and the Binance server have the latest and most secure SSL/TLS certificates.

• Reinstall connector: After updating my certificates, I reinstalled the binance-connector library: pip3 install binance-connector. Make sure to update your settings.py file with the new SSL certificate path.

Updated Code

import os
from dotenv import load_dotenv
from pathlib import Path
load_dotenv(Path(__file__).parent / ".env")

Update SSL certificates
os.environ['Binance_API_KEY'] = 'YOUR_BINANCE_API_KEY' 
Replace with your actual API key
os.environ['Binance_API_SECRET'] = 'YOUR_BINANCE_API_SECRET' 
Replace with your actual API secret
os.environ['Binance_API_URL'] = f'

Reinstall the connector and update the certificates in settings.py
from binance import Client
client = Client(binance_config='settings')

Conclusion

By following these steps, you should be able to resolve the SSL certificate validation failed issue with the Binance Connector for Python. Make sure your local machine and Binance server have the correct SSL certificates installed, update them if necessary, and reinstall the binance-connector library.

If you encounter any further issues or need help with troubleshooting, feel free to ask. Happy coding!

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