拥有rsvp_event和user_event权限仍遇Facebook Graph API #200权限错误

Hey there, let's dig into why you're hitting that frustrating #200 error while trying to mark yourself as interested in an event you manage via the Graph API. Here are the most common culprits and how to fix them:

• Double-check your access token's active permissions
  Even though you requested rsvp_event and user_event, it’s worth verifying if these permissions are actually granted and active. In Graph Explorer, click the "Access Token Info" button next to your token to view the full list of permissions tied to it. Sometimes permissions can get denied during authorization (even unintentionally), or a cached token might not include the scopes you need. If they’re missing, re-authorize your app with the required permissions.

• Inspect the event's privacy and status settings

  • If the event is set to Private, even as a page admin, you might need to be explicitly added as a guest first before you can RSVP. Try manually adding yourself via the Facebook event page, then retry the API call.
  • Make sure the event hasn’t already ended or been cancelled. Facebook blocks RSVP actions for concluded events, which will trigger a #200 error immediately.

• Confirm you’re using the correct HTTP method
  The /321580178346472/interested endpoint requires a POST request, not a GET. If you’re accidentally sending a GET request (the default in some tools), you’ll run into this error. In Graph Explorer, ensure you’ve selected "POST" from the method dropdown before executing the call.

• Check if your access token is valid and unexpired
  Short-lived user access tokens from Graph Explorer expire after 1 hour. If your token is expired, generate a new one by re-authenticating your account in the tool. You can also check the expiration timestamp in the "Access Token Info" to confirm its validity.

• Validate your page role permissions
  While you mentioned managing the page, double-check your specific role. Some page roles (like "Editor" or "Moderator") might not have full permissions to modify event RSVPs. Ensure your role is set to Admin for the page that owns the event.

内容的提问来源于stack exchange，提问作者LighthouseLukas