如何通过Facebook API获取完整用户详情（含手机号码）

Hey folks, let's walk through how to tackle these two Facebook API requirements—getting full user details (including phone numbers) has specific rules and steps tied to Meta's policies and API setup, so let's break it down clearly.

Getting standard user info requires setting up your app correctly and requesting the right permissions:

• Set up your Meta App & Request Permissions
  First, head to the Meta for Developers platform to register your app. You'll need to request relevant user permissions like user_profile, user_email, user_birthday, or user_location—these define what data you can access. Note that most non-public permissions need Meta's review before you can use them in production.
• Call the Graph API with Specific Fields
  The default GET /me endpoint only returns id and name. To get full details, explicitly specify the fields you need in your request:

  GET /me?fields=id,name,email,birthday,gender,location,link
  

  Replace the fields list with exactly what your app requires—don't request data you don't need, as this can hurt your permission review chances.
• Use a Valid User Access Token
  All requests need a valid User Access Token that includes the permissions you've requested. Short-term tokens expire after a few hours; for long-term use, you can exchange them for 60-day long-term tokens using your app's ID and secret.
• Respect User Consent & Policies
  Users have to explicitly consent to share each piece of data. Meta also restricts certain fields based on your app's use case—for example, gender might not be available in all regions due to privacy laws.

Phone numbers are sensitive data, so Meta has strict requirements for accessing this information:

• Request the user_phone_number Permission
  This is a restricted permission that requires thorough Meta review. You'll need to prove your app has a legitimate, user-centric use case (like account verification, customer support, or order updates)—marketing or unsolicited messaging is not allowed.
• Meet App Eligibility Criteria
  Typically, only apps in specific categories (e.g., e-commerce, finance, healthcare) can apply for this permission. Your app must also be fully functional, with a public privacy policy that clearly states how you'll use the phone number data.
• Call the API with the Right Fields
  Once approved, include phone_number in your fields list:

  GET /me?fields=id,name,email,phone_number
  

  The returned phone number will be in international format (e.g., +12345678901).
• Critical Privacy & Compliance Notes
  You must store and use the phone number in compliance with Meta's Platform Terms and global privacy laws (like GDPR). Never share or sell this data, and only use it for the purpose you stated in your permission request—violations can lead to app suspension or permanent bans.

Quick Pro Tips #

• Use Meta's Test Users feature during development to test permission flows and data retrieval without needing live user consent.
• When submitting permission reviews, provide detailed screenshots of your app's user flow, a link to your privacy policy, and a clear explanation of why each piece of data is necessary.

内容的提问来源于stack exchange，提问作者kiran