CodexBloom - Programming Q&A Platform

Facebook Graph API: Handling Pagination in Large User List Retrieval

👀 Views: 14 đŸ’Ŧ Answers: 1 📅 Created: 2025-06-17
facebook graphql api javascript JavaScript

I'm experimenting with I'm collaborating on a project where I've been struggling with this for a few days now and could really use some help. I'm attempting to set up After trying multiple solutions online, I still can't figure this out... I'm working with the Facebook Graph API and trying to retrieve a large list of users from my application. The question I'm working with is related to pagination. I've successfully made a call to the endpoint to get user data, but when I handle the pagination with the `next` cursor, I'm not getting the expected results. Here's the code I'm using: ```javascript const fetchUsers = async () => { let users = []; let url = 'https://graph.facebook.com/v12.0/me/friends?access_token=YOUR_ACCESS_TOKEN'; while (url) { const response = await fetch(url); const data = await response.json(); if (response.ok) { users = users.concat(data.data); url = data.paging && data.paging.next ? data.paging.next : null; } else { console.behavior(`behavior fetching users: ${data.behavior.message}`); break; } } return users; }; fetchUsers().then(users => console.log(users)); ``` The scenario I'm working with is that when I reach the end of the pagination, I sometimes get an behavior message saying, "(#200) App does not have permission to access the requested resource", even though my access token has the necessary permissions. I've verified that I have the `user_friends` permission and that the user has granted it. Also, I've tested this using the Graph API Explorer and can see the correct data being returned without pagination issues. Could this be a question with the access token expiration, or is there a known scenario with the Graph API where pagination sometimes fails for certain users? What best practices should I follow to handle this in a production environment? Any insights would be greatly appreciated. The stack includes Javascript and several other technologies. I'm working with Javascript in a Docker container on Ubuntu 20.04. What are your experiences with this? Could this be a known issue? My team is using Javascript for this CLI tool.