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Ethereum API Error: „Not Found, Not Authenticated, or Unauthorized“

As a developer working with the Binance API via the popular Python library, you are probably no stranger to errors that can occur when interacting with financial platforms. Today, we will address one specific error message that can be caused by an issue related to the Ethereum API: APIError(code=-1099): Not Found, Not Authenticated, or Unauthorized.

Error Message Analysis

Let’s break down the error code and the message to better understand what is happening:

• APIError: This is a standard Python error object that represents an error that occurred during an API request.

• code=-1099: In this case, the error code indicates that the Ethereum blockchain API returned a „404 Not Found“ response. However, there seems to be another issue at play here, as the 404 status code usually indicates an unknown resource or not found on the server.

• Not Found: This line further confirms that the API was unable to find any data or information about Ethereum transactions or balances.

• unauthenticated and unauthorized: These lines indicate that the request was not properly authenticated, which is another key aspect of interacting with the Ethereum blockchain.

Possible Causes

There are several possible causes for this error:

• Invalid API Endpoint: Make sure you are using the correct endpoint to retrieve Ethereum data. You can check the Binance API documentation to check the supported endpoints and any specific requirements.

• Authentication Issues: Make sure your application is properly authenticated with a valid API key or access token. If the authentication is incorrect, it can lead to unauthorized requests or errors like this.

• Network Connectivity Issues: Check your network connectivity to ensure that you can establish a stable connection to the Binance API servers.

• API Rate Limiting: The Ethereum blockchain API has rate limits on its usage. If your application exceeds these limits, you may encounter errors like this.

Recommendations

To resolve this issue, consider the following steps:

• Check your API credentials: Double-check that you are using the correct API key and access token for your application.

• Check network connectivity: Make sure your network connection is stable and working properly.

• Adjust API endpoints and rate limits: Make sure you are using the correct endpoint and adjust the rate limits according to the Binance API documentation.

Example Python Code

Here is an example Python code snippet that shows how to handle this error:

„`python

import requests

Set API credentials and URL

api_key = „YOUR_API_KEY“

api_secret = „YOUR_API_SECRET“

endpoint = f“

try:

Create a new request with the correct parameters

parameters = {

„symbol“: „ETHUSDT“,

Replace with the desired asset pair

„side“: „buy“

Buy or sell?

}

response = requests.post(endpoint, json=params)

Check if the API returned an error message

if response.status_code != 200:

print(f“API error: {response.text}“)

If authentication issues are detected, try the authenticated request again

api_key = „YOUR_AUTHENTICATED_API_KEY“

params[„api_key“] = api_key

endpoint = f“

response = requests.post(endpoint, json=params)

if response.status_code == 200:

print(f“API error: {response.text}“)

else:

print(„API error: „, response.

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