Error while acessing the flows

[Anandpaul99s]

Hello, any one can help I am not able to access my flows (which are there in langflow website that i have created ) through python script it is saying => Error making API request: 401 Client Error: Unauthorized for url: https://api.langflow.astra.datastax.com/lf/
Please help me in this

[dosubot[bot]]

To resolve the 401 Unauthorized error when accessing your flows on the Langflow website through a Python script, ensure that you are correctly handling authentication tokens and API keys. Here are some steps you can follow:

1. Check Auto Login Settings: Ensure that AUTO_LOGIN is enabled in the settings. If it's disabled, you will receive a 400 Bad Request error indicating that auto login is disabled.

2. Use Correct Tokens: Make sure you are using the correct access_token_lf and refresh_token_lf cookies. These tokens are set as cookies when you log in or refresh your session.

3. Refresh Tokens: If your access token has expired, use the /refresh endpoint to obtain new tokens. Ensure you have a valid refresh_token_lf cookie to do this. If the refresh token is invalid, you will receive a 401 Unauthorized error.

4. Verify API Key: Ensure that you are providing a valid API key when making requests. An invalid API key will result in a 401 Unauthorized error.

Here's a sample Python script to handle token refresh and API key verification:

import requests

def refresh_tokens():
    url = "https://your-langflow-url/api/v1/refresh"
    cookies = {
        "refresh_token_lf": "your_refresh_token_here"
    }
    response = requests.post(url, cookies=cookies)
    
    if response.status_code == 200:
        tokens = response.json()
        # Use the new access token for subsequent requests
        access_token = tokens["access_token"]
        print("Access token refreshed:", access_token)
    else:
        print("Failed to refresh tokens:", response.status_code, response.text)

def access_flow(api_key):
    url = "https://your-langflow-url/api/v1/your-flow-endpoint"
    headers = {
        "Authorization": f"Bearer {api_key}"
    }
    response = requests.get(url, headers=headers)
    
    if response.status_code == 200:
        print("Flow accessed successfully")
    else:
        print("Failed to access flow:", response.status_code, response.text)

refresh_tokens()
access_flow("your_api_key_here")

Ensure you replace "your-langflow-url", "your_refresh_token_here", and "your_api_key_here" with your actual Langflow URL, refresh token, and API key. Verify that your tokens and API key are correctly set, not expired, and associated with an active user ^[1][2].

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