我一直在测试图形 API 并遇到了问题。如何从页面/群组的照片中获得点赞数？
我是群组的管理员/创建者。当输入来自该组的https://developers.facebook.com/tools/explorer/ 某个照片 ID 时，它会带来几乎所有数据，甚至是 cmets，但不会带来类似的计数。对于类似的部分，尽管任何人都可以访问该信息，但它需要（根据文档）访问令牌。
如何获取具有所需权限的页面/组的访问令牌以及如何使用它来获取我需要的信息？
如果可能的话，我想从单个地址获取 JSON。
【问题讨论】：
标签： facebook facebook-graph-api count facebook-like photos
这可以通过页面实现（即使没有访问令牌！），方法如下：
访问图表上的页面
通过访问页面的url获取页面的id：
https://www.facebook.com/pages/platform/19292868552
URL 末尾的数字是页面的 ID。获取该 ID 并将其与图形资源管理器 (here) 一起使用，或者直接访问它 directly。
访问页面的相册
现在将相册附加到该网址将为您提供该页面的所有相册，包括墙上的照片：
https://graph.facebook.com/19292868552/albums
输出如下：
{
"data": [
{
"id": "10150160810478553",
"from": {
"name": "Facebook Platform",
"category": "Product/service",
"id": "19292868552"
},
"name": "Bringing Operation Developer Love to Europe",
"description": "Blog post: http://developers.facebook.com/blog/post/479\n\nVideos and presentations uploaded here: http://developers.facebook.com/videos/",
"location": "Berlin, Paris, London",
"link": "https://www.facebook.com/album.php?fbid=10150160810478553&id=19292868552&aid=285301",
"cover_photo": "10150160811078553",
"count": 32,
"type": "normal",
"created_time": "2011-04-06T23:05:44+0000",
"updated_time": "2011-04-06T23:33:20+0000",
"comments": {
..... etc ....
选择专辑
data 数组中的每个对象都有一个id 和一个name。使用这两个字段，您可以选择包含所需照片的相册。此结果中的第一张专辑是《Bringing Operation Developer Love to Europe》。让我们看看这张专辑的照片。
看照片
如果您到目前为止已经按照答案进行操作，那么下一步应该是相当明显的。使用您想要的相册的 id 并将 photos 附加到图表 url：
https://graph.facebook.com/10150160810478553/photos
查看照片的赞
就像选择相册一样，只需在上述步骤的输出中使用一个 id 并将 likes 附加到 url 即可查看喜欢的照片：
https://graph.facebook.com/10150160813853553/likes
输出：
{
"data": [
{
"id": "1163036945",
"name": "Aditya Pn"
},
{
"id": "1555885347",
"name": "Nadin M\u00f6ller"
},
{
"id": "100001643068103",
"name": "Umut Ayg\u00fcn"
},
{
"id": "100000165334510",
"name": "Alessandra Milfont"
},
{
"id": "100001472353494",
"name": "Sayer Mohammad Naz"
},
{
"id": "1051008973",
"name": "Jenson Daniel Chambi"
},
{
"id": "100000233515895",
"name": "Ruby Atiga"
},
使用此输出，您可以简单地计算数据数组中的条目数以获得类似计数。
请注意，使用graph explorer 可以通过单击输出框中的 ID 和连接侧边栏（除了最后一个 /likes 连接，希望很快添加. 我希望这会有所帮助。此外，您不需要访问令牌来执行任何操作，因为页面是公开的。希望这会有所帮助！
【讨论】：
/{photo-id}?fields=likes.summary(true) 将返回带有字段 .summary.total_count 的响应
您可以通过将 fields 参数与 likes.limit(1).summary(true) 结合使用来获取 cmets/likes 计数，而无需对所有喜欢进行分页。例如，下面的披萨搜索 api 查询将为您提供所有公开帖子及其点赞数汇总：
https://graph.facebook.com/search?q=pizza&type=post&fields=id,name,likes.limit(1).summary(true)
结果（截断）：
{
"data": [
{
"id": "47883936273_659693910762305",
"name": "Instagram",
"created_time": "2014-02-16T01:15:29+0000",
"likes": {
"data": [
{
"id": "100002243084532",
"name": "Yvette Martin"
}
],
"paging": {
"cursors": {
"after": "MTAwMDAyMjQzMDg0NTMy",
"before": "MTAwMDAyMjQzMDg0NTMy"
},
"next": "https://graph.facebook.com/47883936273_659693910762305/likes?limit=1&summary=1&after=MTAwMDAyMjQzMDg0NTMy"
},
"summary": {
"total_count": 13682
}
}
},
{
"id": "136336876521150_314001148754721",
"name": "Pizza Box Turns into Plates & Storage Unit!",
"created_time": "2014-02-15T21:20:00+0000",
"likes": {
"data": [
{
"id": "100005373008864",
"name": "Liliana Campoli"
}
],
"paging": {
"cursors": {
"after": "MTAwMDA1MzczMDA4ODY0",
"before": "MTAwMDA1MzczMDA4ODY0"
},
"next": "https://graph.facebook.com/136336876521150_314001148754721/likes?limit=1&summary=1&after=MTAwMDA1MzczMDA4ODY0"
},
"summary": {
"total_count": 2792
}
}
}
【讨论】：
/me/feed 返回 LIKES 字段
我使用了一个解决方案，我只需找到数组中显示 LIKES 的项目数
Object.keys(item.likes.data).length
这会返回对象的“长度”——等于喜欢的次数。
【讨论】：
http://graph.facebook.com/223766074374957
响应中有一个 likes 属性
{
"name": "Bejeweled Blitz",
"is_published": true,
"website": "https://apps.facebook.com/bejeweledblitz/",
"username": "bejeweledblitz",
"products": "Bejeweled Blitz\nBejeweled\nPlants vs. Zombies\nPeggle\nZuma\nChuzzle\nBookworm Adventures\n \nFor a complete list, please visit www.popcap.com\n ",
"about": "We're the award-winning hit, Bejeweled Blitz! The lightning-fast puzzle game where you have just 60-seconds to match as many gems as you can! Start Blitzing now!",
"general_info": "Speed is the name of the game in Bejeweled Blitz! Bejeweled Blitz is a speedier take on the classic Bejeweled match-3 gem game mechanic. Your goal is to make as many matches as you can in 60-seconds to really make your score soar! But you won't be going it alone! There are special ways to enhance your Bejeweled Blitz game - like Boosts (power-ups like Scrambler, which moves all the gems around the board or +5 seconds, to add 5 seconds more gem-matching time!) and the popular, Rare Gems. Rare Gems are like extra-special power-ups that can REALLY take your game to the next level!",
"talking_about_count": 22487,
"category": "App page",
"id": "223766074374957",
"link": "https://www.facebook.com/bejeweledblitz",
"likes": 5796324,
"cover": {
"cover_id": 383412771743619,
"source": "http://sphotos-c.ak.fbcdn.net/hphotos-ak-ash4/s720x720/417018_383412771743619_1056862875_n.jpg",
"offset_y": 0
}
}
【讨论】：