Attempt to fix Facebook auth scopes (#264)

[pbek]

Follow up from #345.

Have you tried authing with Facebook with the new app scope?

I now have setup my own build and docker deployment process so I can test on my server. After the painful configuration at https://developers.facebook.com (and successifuly receiving an auth token) I'm one step further.

ERRO[0993] [Facebook 2]: Error: [message:(#200) If posting to a group, requires app being installed in the group, and \
          either publish_to_groups permission with user token, or both pages_read_engagement \
          and pages_manage_posts permission with page token; If posting to a page, \
          requires both pages_read_engagement and pages_manage_posts as an admin with \
          sufficient administrative permission] [type:OAuthException] [code:200] [subcode:0] 

So yes, the scopes are working.

[pbek]

@muesli, is the Facebook Hive capable of posting to a Facebook page? Because that's what I'm trying to achieve. 😀

[pbek]

It seems like pages are a different thing, you need a page access token, https://developers.facebook.com/docs/pages/publishing.

[muesli]

I must admit I've kinda stopped using Facebook personally, but have so far only used it to post on my personal page - which Facebook now doesn't permit anymore.

Posting to pages via the API should still be doable, though. We may or may not have to adapt to their newer API versions.

[pbek]

Facebook posting was always kind of flaky (back a few years ago when I wrote my own publishing integration) since access tokens seem to expire from time to time...

[muesli]

Thank you, @pbek!