Get User ID Using Facebook API

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import logging
from fastapi import FastAPI
from starlette.responses import RedirectResponse
from facebook_user_id_fetcher import router as facebook_user_id_router

logger = logging.getLogger(__name__)
logging.basicConfig(level=logging.WARNING)

app = FastAPI()

app.include_router(facebook_user_id_router)

@app.get("/", include_in_schema=False)
def root():
    return RedirectResponse(url='/docs')

# Do not remove the main function while updating the app.
if __name__ == "__main__":
    import uvicorn

    # This initialization is essential and must not be removed.
    uvicorn.run(app, host="0.0.0.0", port=8080, log_level="info")
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Frequently Asked Questions

What business applications can benefit from using this Facebook User ID Fetcher?

The Facebook User ID Fetcher template can be valuable for various business applications, including: - User authentication systems that integrate with Facebook login - Customer relationship management (CRM) systems that track user interactions across platforms - Marketing analytics tools that need to associate Facebook user data with other customer information - Personalized content delivery systems that tailor experiences based on Facebook user profiles

How can this template improve user experience in a business application?

The Facebook User ID Fetcher can enhance user experience by: - Simplifying the sign-up process through Facebook login integration - Enabling seamless cross-platform user identification - Facilitating personalized content and recommendations based on Facebook user data - Streamlining user account management by linking accounts across different services

What are the potential privacy considerations when using this template in a business context?

When implementing the Facebook User ID Fetcher, businesses should consider: - Clearly communicating to users how their Facebook data will be used - Ensuring compliance with data protection regulations like GDPR and CCPA - Implementing proper data storage and security measures for user IDs - Providing users with options to unlink their Facebook accounts or delete their data

How can I extend the Facebook User ID Fetcher to retrieve additional user information?

You can modify the get_facebook_user_id function in facebook_user_id_fetcher.py to request additional fields from the Facebook API. For example, to fetch the user's name and email along with their ID:

python @router.get("/get-user-info") def get_facebook_user_info(access_token: str): url = "https://graph.facebook.com/v12.0/me" params = { "fields": "id,name,email", "access_token": access_token, } response = requests.get(url, params=params) if response.status_code == 200: return response.json() else: raise HTTPException(status_code=400, detail="Error fetching user info from Facebook")

Note that requesting additional fields may require additional permissions from the user.

How can I add error handling to the Facebook User ID Fetcher to deal with expired access tokens?

You can enhance the error handling in the get_facebook_user_id function to specifically catch and handle expired access token errors. Here's an example:

python @router.get("/get-user-id") def get_facebook_user_id(access_token: str): url = "https://graph.facebook.com/v12.0/me" params = { "fields": "id", "access_token": access_token, } response = requests.get(url, params=params) if response.status_code == 200: return response.json() elif response.status_code == 190: # Facebook's error code for invalid access token error_data = response.json().get('error', {}) if error_data.get('type') == 'OAuthException': raise HTTPException(status_code=401, detail="Access token has expired or is invalid") raise HTTPException(status_code=400, detail="Error fetching user ID from Facebook")

This modification allows the Facebook User ID Fetcher to provide more specific error messages when dealing with access token issues.

Created: | Last Updated:

An app that retrieves the Facebook user ID using the Facebook API. No specific permissions are required to make this api call. This app uses the FastAPI to create an endpoint to call the Facebook API for getting a logged-in user's id. A facebook access token will be needed to make the API call.

Introduction to the Get User ID Using Facebook API Template

Welcome to the "Get User ID Using Facebook API" template guide. This template is designed to help you quickly set up an application that retrieves a Facebook user ID using the Facebook API. It leverages FastAPI to create an endpoint that interacts with the Facebook API, requiring only a Facebook access token to make the call. This guide will walk you through the steps to use this template on the Lazy platform, ensuring you can deploy and integrate the application with ease.

Clicking Start with this Template

To begin using this template, simply click on the "Start with this Template" button. This will pre-populate the code in the Lazy Builder interface, so you won't need to copy, paste, or delete any code manually.

Test: Pressing the Test Button

Once you have started with the template, the next step is to press the "Test" button. This will initiate the deployment of your application and launch the Lazy CLI. The deployment process is handled entirely by Lazy, so you don't need to worry about installing libraries or setting up your environment.

Entering Input: Filling in User Input

After pressing the "Test" button, if the application requires user input, the Lazy App's CLI interface will prompt you to provide it. For this template, you will need to enter a valid Facebook access token. To obtain an access token, you must create a Facebook app and go through the Facebook authentication flow. Detailed instructions on how to do this can be found in the Facebook Developer documentation:

  • Visit the Facebook Developer portal and create a new app.
  • Configure the app's settings to obtain the necessary permissions.
  • Use the Graph API Explorer or implement the Facebook login flow to get an access token.

Once you have the access token, enter it into the CLI when prompted.

Using the App

After the application is deployed, Lazy will provide you with a dedicated server link to use the API. Additionally, since this template uses FastAPI, you will also be provided with a link to the API documentation. You can use these links to interact with the API and retrieve Facebook user IDs.

Integrating the App

If you need to integrate this application into an external service or frontend, you can use the server link provided by Lazy. For example, you can make a GET request to the `/get-user-id` endpoint with the access token as a query parameter to fetch the user ID. Here's a sample request you might use:

GET /get-user-id?access_token=YOUR_FACEBOOK_ACCESS_TOKEN And here's a sample response you can expect:

{   "id": "1234567890123456" } If you need to integrate this endpoint into another tool, you can add the provided server link as an API endpoint in that tool. Make sure to follow the specific instructions for the external tool to add the API endpoint correctly.

By following these steps, you should now have a fully functional application that can retrieve Facebook user IDs using the Facebook API, all set up and running on the Lazy platform.



Here are 5 key business benefits for this template:

Template Benefits

  1. User Authentication: Easily integrate Facebook login into applications, allowing businesses to authenticate users quickly and securely using their Facebook credentials.

  2. Personalized User Experience: By retrieving the Facebook user ID, businesses can create personalized experiences for users, tailoring content and recommendations based on their Facebook profile information.

  3. Social Media Marketing: Enable targeted marketing campaigns by linking user behavior on your platform with their Facebook profile, allowing for more effective ad targeting and customer segmentation.

  4. Data Enrichment: Use the Facebook user ID to gather additional user data (with proper permissions), enhancing customer profiles and improving business intelligence.

  5. Cross-Platform Integration: Facilitate seamless integration between your application and Facebook-related services, enabling features like social sharing, friend invites, or Facebook-powered comments.

Technologies

FastAPI Templates and Webhooks FastAPI Templates and Webhooks

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