Javascript 从 facebook 图形 API 获取全尺寸图片
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Get full sized picture from facebook graph API
提问by Simon Knittel
I'm using the graph api endpoint /PAGE_ID/poststo get all posts from a facebook page.
Now I want the full sized image from these posts. The picture property of the returned objects gives me only a cropped version of that image.
我正在使用图形 API 端点/PAGE_ID/posts从 Facebook 页面获取所有帖子。现在我想要这些帖子中的全尺寸图片。返回对象的图片属性只给了我该图像的裁剪版本。
With the object id from these posts and the API endpoint /OBJECT_ID/pictureI get the only the small, normal and album sized version of the picture. But with a little modification to the URL I managed to get the full sized image.
使用这些帖子中的对象 ID 和 API 端点，/OBJECT_ID/picture我得到了图片的唯一小、正常和相册大小的版本。但是通过对 URL 稍加修改，我设法获得了完整尺寸的图像。
Example
例子
This URL:
https://graph.facebook.com/10152843929471041/picture
这个网址：https:
//graph.facebook.com/10152843929471041/picture
redirects to this URL:
https://fbcdn-sphotos-b-a.akamaihd.net/hphotos-ak-xpa1/t31.0-8/s720x720/10838228_10152843929471041_5251228402651650719_n.jpg
重定向到这个网址：https:
//fbcdn-sphotos-ba.akamaihd.net/hphotos-ak-xpa1/t31.0-8/s720x720/10838228_10152843929471041_5251228402619_n.jpg
I removed the 720x720from that URL to get this URL:
https://fbcdn-sphotos-b-a.akamaihd.net/hphotos-ak-xpa1/t31.0-8/s/10838228_10152843929471041_5251228402651650719_n.jpg
我720x720从那个 URL 中删除了这个 URL：https:
//fbcdn-sphotos-ba.akamaihd.net/hphotos-ak-xpa1/t31.0-8/s/10838228_10152843929471041_525122840269165071
which is finally the full sized image.
这最终是全尺寸的图像。
I think, that I can achieve this modification with a regex pattern. But now is my question, how I can get the URL after the redirect from the original URL (the first one).
我认为，我可以使用正则表达式模式来实现这种修改。但现在是我的问题，如何从原始 URL（第一个）重定向后获取 URL。
Any ideas or simpler solutions?
任何想法或更简单的解决方案？
回答by luschn
This is how you can get larger pictures:
这是获得更大图片的方法：
/OBJECT-ID/picture?width=500&height=500
Or:
或者：
/OBJECT-ID/picture?type=large
Also take a look at answer in this thread: Facebook Graph API : get larger pictures in one request
另请查看此线程中的答案：Facebook Graph API：在一个请求中获取更大的图片
Edit: As this does not seem to work with Object IDs, you can just grab the image from this response:
编辑：由于这似乎不适用于对象 ID，您可以从该响应中获取图像：
https://graph.facebook.com/10152843929471041
Look out for the "images" array.
注意“图像”数组。
回答by turdus-merula
One can also request the imagescollection of a photoobject, then search for the highest resolution entry.
还可以请求对象的images集合photo，然后搜索最高分辨率的条目。
See documentation. Code:
请参阅文档。代码：
MyFacebookWrapper.getBestImage = function(photoId) {
var deferred = new $.Deferred();
var params = { fields: "images" };
FB.api("/" + photoId, "get", params,
function (response) {
console.log("MyFacebookWrapper.getBestImage, response:");
console.log(response);
var images = _.sortBy(response.images, 'width');
var best = _.last(images)
deferred.resolve(best);
}
);
return deferred.promise();
};
Usage:
用法：
MyFacebookWrapper.getBestImage("photo Id ...").then(function(image) {
console.log(image);
});
