publish: support location (not in Facebook API)

[snarfed]

looks like we'd just need to convert p-location and/or u-checkin to the place param in the/user/feed POST.

https://developers.facebook.com/docs/graph-api/reference/v2.2/user/feed

(thanks for not mentioning that I hand waved past a hard part or two there. nice of you. :P)

status:

• Twitter: done!
• Flickr: done!
• Facebook: difficult, requires UI or FB place URL in post (inconsistent).
• Instagram: API doesn't allow publishing.
• Google+: API doesn't allow publishing.

[snarfed]

related to #318.

[tantek]

I think this would be useful as an aspect of any post type, not just "check-ins". E.g. notes have locations, photos have locations etc. similar to making #459 apply to more than just photos.

Encountered need: http://indiewebcamp.com/irc/2015-09-01/line/1441139465398

[snarfed]

twitter now supports this too: https://dev.twitter.com/rest/reference/post/statuses/update

[petermolnar]

for Flickr, I suggest looking for a h-geo tag, as Flickr accepts latitude/longitude.

This is a snippet from a PHP code that does this for Flickr:

$params = array (
        'format' => 'php_serial',
        'method'=>'flickr.photos.geo.setLocation',
        'photo_id'=>$phiID,
        'lat'=>$latitude,
        'lon'=>$longitude,
);

$oauth->makeReq('https://api.flickr.com/services/rest/',$params);

[kylewm]

@petermolnar I pushed some changes that should make this work for Flickr. Could you test it when you have a chance? Thanks!

[snarfed]

the catch with facebook that i hand waved past initially is that we have to use a location from their database. specifically, we'd search for candidates, choose one somehow, and includes its id in the place param with our publish call.

the "choose one" part is the hard part. it implies UI, or at least multiple round trips and more interface functionality in bridgy publish, which we're trying to avoid. @kylewm mentioned that he started down this road in silo.pub and hit the same difficulties.

we could do it if they include a link to the facebook place page in their post, though. something like .p-location.u-url? afaik that mf2 doesn't actually make sense, but something similar?

[kylewm]

.u-location or .p-location.h-card > .u-url would work

A tiny bit of exploration, some place URLs are like

https://www.facebook.com/The-Creamery-276261304155/ or
https://www.facebook.com/Kathys-Kreative-Kakes-139715692377/

The place ID is predictably the # after the slug.

Some are like https://www.facebook.com/bstreetandvine (this seems rare, I wonder if they were grandfathered in)

Where you can request graph.facebook.com/v2.5/bstreetandvine and get

{
  "name": "B Street and Vine",
  "id": "141366356825"
}

When creating a POST, setting the "place" field to this ID seems to work (although it makes it look like a big stupid checkin instead of a simple post with a location) e.g.

[kylewm]

Also, for reference I tried to implement place/location for Facebook in silo.pub

I used https://graph.facebook.com/v2.5/search?type=place&center=lat,lng&distance=500&q=place_name which is actually pretty decent PROVIDED you have a place_name. If you don't, it'll check you in to the nearest venue of any kind (in my case it was a massage place)

[snarfed]

bridgy publish for facebook will disappear soon (#817), so I'm closing open issues for it. sad. feel free to holler if you disagree.